---
_id: '123'
abstract:
- lang: eng
text: The Leidenfrost effect occurs when an object near a hot surface vaporizes
rapidly enough to lift itself up and hover. Although well understood for liquids
and stiff sublimable solids, nothing is known about the effect with materials
whose stiffness lies between these extremes. Here we introduce a new phenomenon
that occurs with vaporizable soft solids - the elastic Leidenfrost effect. By
dropping hydrogel spheres onto hot surfaces we find that, rather than hovering,
they energetically bounce several times their diameter for minutes at a time.
With high-speed video during a single impact, we uncover high-frequency microscopic
gap dynamics at the sphere/substrate interface. We show how these otherwise-hidden
agitations constitute work cycles that harvest mechanical energy from the vapour
and sustain the bouncing. Our findings suggest a new strategy for injecting mechanical
energy into a widely used class of soft materials, with potential relevance to
fields such as active matter, soft robotics and microfluidics.
acknowledgement: A.S. acknowledges funding from the Delta Institute for Theoretical
Physics and the hospitality of the IBS Center for Theoretical Physics of Complex
Systems, Daejeon, South Korea. We acknowledge funding from the Netherlands Organisation
for Scientific Research through grants VICI No. NWO-680-47-609 (M.v.H. and S.R.W.),
VENI No. NWO-680-47-445 (C.C.) and VENI No. NWO-680-47-453 (S.R.W.).
arxiv: 1
author:
- first_name: Scott R
full_name: Waitukaitis, Scott R
id: 3A1FFC16-F248-11E8-B48F-1D18A9856A87
last_name: Waitukaitis
orcid: 0000-0002-2299-3176
- first_name: Antal
full_name: Zuiderwijk, Antal
last_name: Zuiderwijk
- first_name: Anton
full_name: Souslov, Anton
last_name: Souslov
- first_name: Corentin
full_name: Coulais, Corentin
last_name: Coulais
- first_name: Martin
full_name: Van Hecke, Martin
last_name: Van Hecke
citation:
ama: Waitukaitis SR, Zuiderwijk A, Souslov A, Coulais C, Van Hecke M. Coupling the
Leidenfrost effect and elastic deformations to power sustained bouncing. Nature
Physics. 2017;13(11):1095-1099. doi:10.1038/nphys4194
apa: Waitukaitis, S. R., Zuiderwijk, A., Souslov, A., Coulais, C., & Van Hecke,
M. (2017). Coupling the Leidenfrost effect and elastic deformations to power sustained
bouncing. Nature Physics. Nature Publishing Group. https://doi.org/10.1038/nphys4194
chicago: Waitukaitis, Scott R, Antal Zuiderwijk, Anton Souslov, Corentin Coulais,
and Martin Van Hecke. “Coupling the Leidenfrost Effect and Elastic Deformations
to Power Sustained Bouncing.” Nature Physics. Nature Publishing Group,
2017. https://doi.org/10.1038/nphys4194.
ieee: S. R. Waitukaitis, A. Zuiderwijk, A. Souslov, C. Coulais, and M. Van Hecke,
“Coupling the Leidenfrost effect and elastic deformations to power sustained bouncing,”
Nature Physics, vol. 13, no. 11. Nature Publishing Group, pp. 1095–1099,
2017.
ista: Waitukaitis SR, Zuiderwijk A, Souslov A, Coulais C, Van Hecke M. 2017. Coupling
the Leidenfrost effect and elastic deformations to power sustained bouncing. Nature
Physics. 13(11), 1095–1099.
mla: Waitukaitis, Scott R., et al. “Coupling the Leidenfrost Effect and Elastic
Deformations to Power Sustained Bouncing.” Nature Physics, vol. 13, no.
11, Nature Publishing Group, 2017, pp. 1095–99, doi:10.1038/nphys4194.
short: S.R. Waitukaitis, A. Zuiderwijk, A. Souslov, C. Coulais, M. Van Hecke, Nature
Physics 13 (2017) 1095–1099.
date_created: 2018-12-11T11:44:45Z
date_published: 2017-07-24T00:00:00Z
date_updated: 2021-01-12T06:49:14Z
day: '24'
doi: 10.1038/nphys4194
extern: '1'
external_id:
arxiv:
- '1705.03530'
intvolume: ' 13'
issue: '11'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/1705.03530
month: '07'
oa: 1
oa_version: Preprint
page: 1095 - 1099
publication: Nature Physics
publication_status: published
publisher: Nature Publishing Group
publist_id: '7931'
quality_controlled: '1'
status: public
title: Coupling the Leidenfrost effect and elastic deformations to power sustained
bouncing
type: journal_article
user_id: 3E5EF7F0-F248-11E8-B48F-1D18A9856A87
volume: 13
year: '2017'
...
---
_id: '12571'
abstract:
- lang: eng
text: We consider the problems of maintaining approximate maximum matching and minimum
vertex cover in a dynamic graph. Starting with the seminal work of Onak and Rubinfeld
[STOC 2010], this problem has received significant attention in recent years.
Very recently, extending the framework of Baswana, Gupta and Sen [FOCS 2011],
Solomon [FOCS 2016] gave a randomized 2-approximation dynamic algorithm for this
problem that has amortized update time of O(1) with high probability. We consider
the natural open question of derandomizing this result. We present a new deterministic
fully dynamic algorithm that maintains a O(1)-approximate minimum vertex cover
and maximum fractional matching, with an amortized update time of O(1). Previously,
the best deterministic algorithm for this problem was due to Bhattacharya, Henzinger
and Italiano [SODA 2015]; it had an approximation ratio of (2+ϵ) and an amortized
update time of O(logn/ϵ2). Our result can be generalized to give a fully dynamic
O(f3)-approximation algorithm with O(f2) amortized update time for the hypergraph
vertex cover and fractional matching problems, where every hyperedge has at most
f vertices.
alternative_title:
- LNCS
article_processing_charge: No
arxiv: 1
author:
- first_name: Sayan
full_name: Bhattacharya, Sayan
last_name: Bhattacharya
- first_name: Deeparnab
full_name: Chakrabarty, Deeparnab
last_name: Chakrabarty
- first_name: Monika H
full_name: Henzinger, Monika H
id: 540c9bbd-f2de-11ec-812d-d04a5be85630
last_name: Henzinger
orcid: 0000-0002-5008-6530
citation:
ama: 'Bhattacharya S, Chakrabarty D, Henzinger M. Deterministic fully dynamic approximate
vertex cover and fractional matching in O(1) amortized update time. In: 19th
International Conference on Integer Programming and Combinatorial Optimization.
Vol 10328. Springer Nature; 2017:86-98. doi:10.1007/978-3-319-59250-3_8'
apa: 'Bhattacharya, S., Chakrabarty, D., & Henzinger, M. (2017). Deterministic
fully dynamic approximate vertex cover and fractional matching in O(1) amortized
update time. In 19th International Conference on Integer Programming and Combinatorial
Optimization (Vol. 10328, pp. 86–98). Waterloo, ON, Canada: Springer Nature.
https://doi.org/10.1007/978-3-319-59250-3_8'
chicago: Bhattacharya, Sayan, Deeparnab Chakrabarty, and Monika Henzinger. “Deterministic
Fully Dynamic Approximate Vertex Cover and Fractional Matching in O(1) Amortized
Update Time.” In 19th International Conference on Integer Programming and Combinatorial
Optimization, 10328:86–98. Springer Nature, 2017. https://doi.org/10.1007/978-3-319-59250-3_8.
ieee: S. Bhattacharya, D. Chakrabarty, and M. Henzinger, “Deterministic fully dynamic
approximate vertex cover and fractional matching in O(1) amortized update time,”
in 19th International Conference on Integer Programming and Combinatorial Optimization,
Waterloo, ON, Canada, 2017, vol. 10328, pp. 86–98.
ista: 'Bhattacharya S, Chakrabarty D, Henzinger M. 2017. Deterministic fully dynamic
approximate vertex cover and fractional matching in O(1) amortized update time.
19th International Conference on Integer Programming and Combinatorial Optimization.
IPCO: Integer Programming and Combinatorial Optimization, LNCS, vol. 10328, 86–98.'
mla: Bhattacharya, Sayan, et al. “Deterministic Fully Dynamic Approximate Vertex
Cover and Fractional Matching in O(1) Amortized Update Time.” 19th International
Conference on Integer Programming and Combinatorial Optimization, vol. 10328,
Springer Nature, 2017, pp. 86–98, doi:10.1007/978-3-319-59250-3_8.
short: S. Bhattacharya, D. Chakrabarty, M. Henzinger, in:, 19th International Conference
on Integer Programming and Combinatorial Optimization, Springer Nature, 2017,
pp. 86–98.
conference:
end_date: 2017-06-28
location: Waterloo, ON, Canada
name: 'IPCO: Integer Programming and Combinatorial Optimization'
start_date: 2017-06-26
date_created: 2023-02-20T07:52:31Z
date_published: 2017-05-24T00:00:00Z
date_updated: 2024-11-06T12:03:44Z
day: '24'
doi: 10.1007/978-3-319-59250-3_8
extern: '1'
external_id:
arxiv:
- '1611.00198'
intvolume: ' 10328'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/1611.00198
month: '05'
oa: 1
oa_version: Preprint
page: 86-98
publication: 19th International Conference on Integer Programming and Combinatorial
Optimization
publication_identifier:
eisbn:
- '9783319592503'
isbn:
- '9783319592497'
issn:
- 0302-9743
- 1611-3349
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
scopus_import: '1'
status: public
title: Deterministic fully dynamic approximate vertex cover and fractional matching
in O(1) amortized update time
type: conference
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 10328
year: '2017'
...
---
_id: '12608'
abstract:
- lang: eng
text: The spatio-temporal distribution of air temperature over mountain glaciers
can demonstrate complex patterns, yet it is often represented simplistically using
linear vertical temperature gradients (VTGs) extrapolated from off-glacier locations.
We analyse a network of centreline and lateral air temperature observations at
Tsanteleina Glacier, Italy, during summer 2015. On average, VTGs are steep (<−0.0065
°C m−1), but they are shallow under warm ambient conditions
when the correlation between air temperature and elevation becomes weaker. Published
along-flowline temperature distribution methods explain centreline observations
well, including warming on the lower glacier tongue, but cannot estimate lateral
temperature variability. Application of temperature distribution methods improves
simulation of melt rates (RMSE) in an energy-balance model by up to 36% compared
to the environmental lapse rate extrapolated from an off-glacier station. However,
results suggest that model parameters are not easily transferable to glaciers
with a small fetch without recalibration. Such methods have potential to improve
estimates of temperature across a glacier, but their parameter transferability
should be further linked to the glacier and atmospheric characteristics. Furthermore,
‘cold spots’, which can be >2°C cooler than expected for their elevation, whose
occurrence is not predicted by the temperature distribution models, are identified
at one-quarter of the measurement sites.
article_processing_charge: No
article_type: original
author:
- first_name: THOMAS E.
full_name: SHAW, THOMAS E.
last_name: SHAW
- first_name: BEN W.
full_name: BROCK, BEN W.
last_name: BROCK
- first_name: ÁLVARO
full_name: AYALA, ÁLVARO
last_name: AYALA
- first_name: NICK
full_name: RUTTER, NICK
last_name: RUTTER
- first_name: Francesca
full_name: Pellicciotti, Francesca
id: b28f055a-81ea-11ed-b70c-a9fe7f7b0e70
last_name: Pellicciotti
citation:
ama: 'SHAW TE, BROCK BW, AYALA Á, RUTTER N, Pellicciotti F. Centreline and cross-glacier
air temperature variability on an Alpine glacier: Assessing temperature distribution
methods and their influence on melt model calculations. Journal of Glaciology.
2017;63(242):973-988. doi:10.1017/jog.2017.65'
apa: 'SHAW, T. E., BROCK, B. W., AYALA, Á., RUTTER, N., & Pellicciotti, F. (2017).
Centreline and cross-glacier air temperature variability on an Alpine glacier:
Assessing temperature distribution methods and their influence on melt model calculations.
Journal of Glaciology. Cambridge University Press. https://doi.org/10.1017/jog.2017.65'
chicago: 'SHAW, THOMAS E., BEN W. BROCK, ÁLVARO AYALA, NICK RUTTER, and Francesca
Pellicciotti. “Centreline and Cross-Glacier Air Temperature Variability on an
Alpine Glacier: Assessing Temperature Distribution Methods and Their Influence
on Melt Model Calculations.” Journal of Glaciology. Cambridge University
Press, 2017. https://doi.org/10.1017/jog.2017.65.'
ieee: 'T. E. SHAW, B. W. BROCK, Á. AYALA, N. RUTTER, and F. Pellicciotti, “Centreline
and cross-glacier air temperature variability on an Alpine glacier: Assessing
temperature distribution methods and their influence on melt model calculations,”
Journal of Glaciology, vol. 63, no. 242. Cambridge University Press, pp.
973–988, 2017.'
ista: 'SHAW TE, BROCK BW, AYALA Á, RUTTER N, Pellicciotti F. 2017. Centreline and
cross-glacier air temperature variability on an Alpine glacier: Assessing temperature
distribution methods and their influence on melt model calculations. Journal of
Glaciology. 63(242), 973–988.'
mla: 'SHAW, THOMAS E., et al. “Centreline and Cross-Glacier Air Temperature Variability
on an Alpine Glacier: Assessing Temperature Distribution Methods and Their Influence
on Melt Model Calculations.” Journal of Glaciology, vol. 63, no. 242, Cambridge
University Press, 2017, pp. 973–88, doi:10.1017/jog.2017.65.'
short: T.E. SHAW, B.W. BROCK, Á. AYALA, N. RUTTER, F. Pellicciotti, Journal of Glaciology
63 (2017) 973–988.
date_created: 2023-02-20T08:13:47Z
date_published: 2017-12-01T00:00:00Z
date_updated: 2023-02-28T11:30:34Z
day: '01'
doi: 10.1017/jog.2017.65
extern: '1'
intvolume: ' 63'
issue: '242'
keyword:
- Earth-Surface Processes
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1017/jog.2017.65
month: '12'
oa: 1
oa_version: Published Version
page: 973-988
publication: Journal of Glaciology
publication_identifier:
eissn:
- 1727-5652
issn:
- 0022-1430
publication_status: published
publisher: Cambridge University Press
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'Centreline and cross-glacier air temperature variability on an Alpine glacier:
Assessing temperature distribution methods and their influence on melt model calculations'
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 63
year: '2017'
...
---
_id: '12609'
abstract:
- lang: eng
text: Previous estimates of melt and surface sublimation on glaciers of the subtropical
semiarid Andes (29–34°S) have been obtained at few specific locations, but it
is not clear how ablation components vary across the entire extent of a glacier
in this dry environment. Here, we simulate the distributed energy and mass balance
of Juncal Norte Glacier (33°S) during a 2-month summer period. Forcing fields
of near-surface air temperature and wind speed are generated using two methods
accounting for the main physical processes that shape their spatial variations.
Simulated meteorological variables and ablation agree well with observations on
the glacier tongue and reveal complex patterns of energy and mass fluxes. Ablation
decreases from 70 mm w.e. d−1 at the low-albedo glacier terminus
(~3000 m), where almost 100% of total ablation corresponds to melt, to <5 mm
w.e. d−1 at wind-exposed, strong-radiated sites above 5500
m, where surface sublimation represents >75% of total ablation. Our simulations
provide the first glacier-scale estimates of ablation components on a glacier
in the study region and better reproduce the observed and expected spatial variations
of melt and surface sublimation, in comparison with more simple assumptions, such
as linear gradients and uniform wind speeds.
article_processing_charge: No
article_type: original
author:
- first_name: A.
full_name: AYALA, A.
last_name: AYALA
- first_name: Francesca
full_name: Pellicciotti, Francesca
id: b28f055a-81ea-11ed-b70c-a9fe7f7b0e70
last_name: Pellicciotti
- first_name: N.
full_name: PELEG, N.
last_name: PELEG
- first_name: P.
full_name: BURLANDO, P.
last_name: BURLANDO
citation:
ama: 'AYALA A, Pellicciotti F, PELEG N, BURLANDO P. Melt and surface sublimation
across a glacier in a dry environment: distributed energy-balance modelling of
Juncal Norte Glacier, Chile. Journal of Glaciology. 2017;63(241):803-822.
doi:10.1017/jog.2017.46'
apa: 'AYALA, A., Pellicciotti, F., PELEG, N., & BURLANDO, P. (2017). Melt and
surface sublimation across a glacier in a dry environment: distributed energy-balance
modelling of Juncal Norte Glacier, Chile. Journal of Glaciology. Cambridge
University Press. https://doi.org/10.1017/jog.2017.46'
chicago: 'AYALA, A., Francesca Pellicciotti, N. PELEG, and P. BURLANDO. “Melt and
Surface Sublimation across a Glacier in a Dry Environment: Distributed Energy-Balance
Modelling of Juncal Norte Glacier, Chile.” Journal of Glaciology. Cambridge
University Press, 2017. https://doi.org/10.1017/jog.2017.46.'
ieee: 'A. AYALA, F. Pellicciotti, N. PELEG, and P. BURLANDO, “Melt and surface sublimation
across a glacier in a dry environment: distributed energy-balance modelling of
Juncal Norte Glacier, Chile,” Journal of Glaciology, vol. 63, no. 241.
Cambridge University Press, pp. 803–822, 2017.'
ista: 'AYALA A, Pellicciotti F, PELEG N, BURLANDO P. 2017. Melt and surface sublimation
across a glacier in a dry environment: distributed energy-balance modelling of
Juncal Norte Glacier, Chile. Journal of Glaciology. 63(241), 803–822.'
mla: 'AYALA, A., et al. “Melt and Surface Sublimation across a Glacier in a Dry
Environment: Distributed Energy-Balance Modelling of Juncal Norte Glacier, Chile.”
Journal of Glaciology, vol. 63, no. 241, Cambridge University Press, 2017,
pp. 803–22, doi:10.1017/jog.2017.46.'
short: A. AYALA, F. Pellicciotti, N. PELEG, P. BURLANDO, Journal of Glaciology 63
(2017) 803–822.
date_created: 2023-02-20T08:13:53Z
date_published: 2017-10-01T00:00:00Z
date_updated: 2023-02-28T11:28:19Z
day: '01'
doi: 10.1017/jog.2017.46
extern: '1'
intvolume: ' 63'
issue: '241'
keyword:
- Earth-Surface Processes
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1017/jog.2017.46
month: '10'
oa: 1
oa_version: Published Version
page: 803-822
publication: Journal of Glaciology
publication_identifier:
eissn:
- 1727-5652
issn:
- 0022-1430
publication_status: published
publisher: Cambridge University Press
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'Melt and surface sublimation across a glacier in a dry environment: distributed
energy-balance modelling of Juncal Norte Glacier, Chile'
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 63
year: '2017'
...
---
_id: '12610'
abstract:
- lang: eng
text: The hydrological systems of heavily-downwasted debris-covered glaciers differ
from those of clean-ice glaciers due to the hummocky surface and debris mantle
of such glaciers, leading to a relatively limited understanding of drainage pathways.
Supraglacial ponds represent sinks within the discontinuous supraglacial drainage
system, and occasionally drain englacially. To assess pond dynamics, we made pond
water level measurements on Lirung Glacier, Nepal, during May and October of 2013
and 2014. Simultaneously, aerial, satellite, and terrestrial orthoimages and digital
elevation models were obtained, providing snapshots of the ponds and their surroundings.
We performed a DEM-based analysis of the glacier's closed surface catchments to
identify surface drainage pathways and englacial drainage points, and compared
this to field observations of surface and near-surface water flow. The total ponded
area was higher in the pre-monsoon than post-monsoon, with individual ponds filling
and draining seasonally associated with the surface exposure of englacial conduit
segments. We recorded four pond drainage events, all of which occurred gradually
(duration of weeks), observed diurnal fluctuations indicative of varying water
supply and outflow discharge, and we documented instances of interaction between
distant ponds. The DEM drainage analysis identified numerous sinks >3 m in depth
across the glacier surface, few of which exhibited ponds (23%), while the field
survey highlighted instances of surface water only explicable via englacial routes.
Taken together, our observations provide evidence for widespread supraglacial-englacial
connectivity of meltwater drainage paths. Results suggest that successive englacial
conduit collapse events, themselves likely driven by supraglacial pond drainage,
cause the glacier surface drainage system to evolve into a configuration following
relict englacial conduit systems. Within this system, ponds form in depressions
of reduced drainage efficiency and link the supraglacial and englacial drainage
networks.
article_number: '69'
article_processing_charge: No
article_type: original
author:
- first_name: Evan S.
full_name: Miles, Evan S.
last_name: Miles
- first_name: Jakob
full_name: Steiner, Jakob
last_name: Steiner
- first_name: Ian
full_name: Willis, Ian
last_name: Willis
- first_name: Pascal
full_name: Buri, Pascal
last_name: Buri
- first_name: Walter W.
full_name: Immerzeel, Walter W.
last_name: Immerzeel
- first_name: Anna
full_name: Chesnokova, Anna
last_name: Chesnokova
- first_name: Francesca
full_name: Pellicciotti, Francesca
id: b28f055a-81ea-11ed-b70c-a9fe7f7b0e70
last_name: Pellicciotti
citation:
ama: Miles ES, Steiner J, Willis I, et al. Pond dynamics and supraglacial-englacial
connectivity on debris-covered Lirung Glacier, Nepal. Frontiers in Earth Science.
2017;5. doi:10.3389/feart.2017.00069
apa: Miles, E. S., Steiner, J., Willis, I., Buri, P., Immerzeel, W. W., Chesnokova,
A., & Pellicciotti, F. (2017). Pond dynamics and supraglacial-englacial connectivity
on debris-covered Lirung Glacier, Nepal. Frontiers in Earth Science. Frontiers
Media. https://doi.org/10.3389/feart.2017.00069
chicago: Miles, Evan S., Jakob Steiner, Ian Willis, Pascal Buri, Walter W. Immerzeel,
Anna Chesnokova, and Francesca Pellicciotti. “Pond Dynamics and Supraglacial-Englacial
Connectivity on Debris-Covered Lirung Glacier, Nepal.” Frontiers in Earth Science.
Frontiers Media, 2017. https://doi.org/10.3389/feart.2017.00069.
ieee: E. S. Miles et al., “Pond dynamics and supraglacial-englacial connectivity
on debris-covered Lirung Glacier, Nepal,” Frontiers in Earth Science, vol.
5. Frontiers Media, 2017.
ista: Miles ES, Steiner J, Willis I, Buri P, Immerzeel WW, Chesnokova A, Pellicciotti
F. 2017. Pond dynamics and supraglacial-englacial connectivity on debris-covered
Lirung Glacier, Nepal. Frontiers in Earth Science. 5, 69.
mla: Miles, Evan S., et al. “Pond Dynamics and Supraglacial-Englacial Connectivity
on Debris-Covered Lirung Glacier, Nepal.” Frontiers in Earth Science, vol.
5, 69, Frontiers Media, 2017, doi:10.3389/feart.2017.00069.
short: E.S. Miles, J. Steiner, I. Willis, P. Buri, W.W. Immerzeel, A. Chesnokova,
F. Pellicciotti, Frontiers in Earth Science 5 (2017).
date_created: 2023-02-20T08:14:04Z
date_published: 2017-09-21T00:00:00Z
date_updated: 2023-02-28T11:13:23Z
day: '21'
doi: 10.3389/feart.2017.00069
extern: '1'
intvolume: ' 5'
keyword:
- General Earth and Planetary Sciences
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.3389/feart.2017.00069
month: '09'
oa: 1
oa_version: Published Version
publication: Frontiers in Earth Science
publication_identifier:
issn:
- 2296-6463
publication_status: published
publisher: Frontiers Media
quality_controlled: '1'
scopus_import: '1'
status: public
title: Pond dynamics and supraglacial-englacial connectivity on debris-covered Lirung
Glacier, Nepal
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 5
year: '2017'
...
---
_id: '12611'
abstract:
- lang: eng
text: 'We investigate the energy balance and ablation regimes of glaciers in high-elevation,
dry environments using glaciometeorological data collected on six glaciers in
the semiarid Andes of North-Central Chile (29–34°S, 3127–5324 m). We use a point-scale
physically based energy balance (EB) model and an enhanced Temperature-Index (ETI)
model that calculates melt rates only as a function of air temperature and net
shortwave radiation. At all sites, the largest energy inputs are net shortwave
and incoming longwave radiation, which are controlled by surface albedo and elevation,
respectively. Turbulent fluxes cancel each other out at the lower sites, but as
elevation increases, cold, dry and wind-exposed conditions increase the magnitude
of negative latent heat fluxes, associated with large surface sublimation rates.
In midsummer (January), ablation rates vary from 67.9 mm w.e. d−1 at the lowest
site (∼100% corresponding to melt), to 2.3 mm w.e. d−1 at the highest site (>85%
corresponding to surface sublimation). At low-elevation, low-albedo, melt-dominated
sites, the ETI model correctly reproduces melt using a large range of possible
parameters, but both the performance and parameter transferability decrease with
elevation for two main reasons: (i) the air temperature threshold approach for
melt onset does not capture the diurnal variability of melt in cold and strong
irradiated environments and (ii) energy losses decrease the correlation between
melt and net shortwave radiation. We summarize our results by means of an elevation
profile of ablation components that can be used as reference in future studies
of glacier ablation in the semiarid Andes.'
article_processing_charge: No
article_type: original
author:
- first_name: A.
full_name: Ayala, A.
last_name: Ayala
- first_name: Francesca
full_name: Pellicciotti, Francesca
id: b28f055a-81ea-11ed-b70c-a9fe7f7b0e70
last_name: Pellicciotti
- first_name: S.
full_name: MacDonell, S.
last_name: MacDonell
- first_name: J.
full_name: McPhee, J.
last_name: McPhee
- first_name: P.
full_name: Burlando, P.
last_name: Burlando
citation:
ama: 'Ayala A, Pellicciotti F, MacDonell S, McPhee J, Burlando P. Patterns of glacier
ablation across North-Central Chile: Identifying the limits of empirical melt
models under sublimation-favorable conditions. Water Resources Research.
2017;53(7):5601-5625. doi:10.1002/2016wr020126'
apa: 'Ayala, A., Pellicciotti, F., MacDonell, S., McPhee, J., & Burlando, P.
(2017). Patterns of glacier ablation across North-Central Chile: Identifying the
limits of empirical melt models under sublimation-favorable conditions. Water
Resources Research. American Geophysical Union. https://doi.org/10.1002/2016wr020126'
chicago: 'Ayala, A., Francesca Pellicciotti, S. MacDonell, J. McPhee, and P. Burlando.
“Patterns of Glacier Ablation across North-Central Chile: Identifying the Limits
of Empirical Melt Models under Sublimation-Favorable Conditions.” Water Resources
Research. American Geophysical Union, 2017. https://doi.org/10.1002/2016wr020126.'
ieee: 'A. Ayala, F. Pellicciotti, S. MacDonell, J. McPhee, and P. Burlando, “Patterns
of glacier ablation across North-Central Chile: Identifying the limits of empirical
melt models under sublimation-favorable conditions,” Water Resources Research,
vol. 53, no. 7. American Geophysical Union, pp. 5601–5625, 2017.'
ista: 'Ayala A, Pellicciotti F, MacDonell S, McPhee J, Burlando P. 2017. Patterns
of glacier ablation across North-Central Chile: Identifying the limits of empirical
melt models under sublimation-favorable conditions. Water Resources Research.
53(7), 5601–5625.'
mla: 'Ayala, A., et al. “Patterns of Glacier Ablation across North-Central Chile:
Identifying the Limits of Empirical Melt Models under Sublimation-Favorable Conditions.”
Water Resources Research, vol. 53, no. 7, American Geophysical Union, 2017,
pp. 5601–25, doi:10.1002/2016wr020126.'
short: A. Ayala, F. Pellicciotti, S. MacDonell, J. McPhee, P. Burlando, Water Resources
Research 53 (2017) 5601–5625.
date_created: 2023-02-20T08:14:10Z
date_published: 2017-07-10T00:00:00Z
date_updated: 2023-02-24T11:41:55Z
day: '10'
doi: 10.1002/2016wr020126
extern: '1'
intvolume: ' 53'
issue: '7'
keyword:
- Water Science and Technology
language:
- iso: eng
month: '07'
oa_version: None
page: 5601-5625
publication: Water Resources Research
publication_identifier:
issn:
- 0043-1397
publication_status: published
publisher: American Geophysical Union
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'Patterns of glacier ablation across North-Central Chile: Identifying the limits
of empirical melt models under sublimation-favorable conditions'
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 53
year: '2017'
...
---
_id: '12612'
abstract:
- lang: eng
text: Supraglacial ponds play a key role in absorbing atmospheric energy and directing
it to the ice of debris-covered glaciers, but the spatial and temporal distribution
of these features is not well documented. We analyse 172 Landsat TM/ETM+ scenes
for the period 1999–2013 to identify thawed supraglacial ponds for the debris-covered
tongues of five glaciers in the Langtang Valley of Nepal. We apply an advanced
atmospheric correction routine (Landcor/6S) and use band ratio and image morphological
techniques to identify ponds and validate our results with 2.5 m Cartosat-1 observations.
We then characterize the spatial, seasonal and interannual patterns of ponds.
We find high variability in pond incidence between glaciers (May–October means
of 0.08–1.69% of debris area), with ponds most frequent in zones of low surface
gradient and velocity. The ponds show pronounced seasonality, appearing in the
pre-monsoon as snow melts, peaking at the monsoon onset at 2% of debris-covered
area, then declining in the post-monsoon as ponds drain or freeze. Ponds are highly
recurrent and persistent, with 40.5% of pond locations occurring for multiple
years. Rather than a trend in pond cover over the study period, we find high interannual
variability for each glacier after controlling for seasonality.
article_processing_charge: No
article_type: original
author:
- first_name: EVAN S.
full_name: MILES, EVAN S.
last_name: MILES
- first_name: IAN C.
full_name: WILLIS, IAN C.
last_name: WILLIS
- first_name: NEIL S.
full_name: ARNOLD, NEIL S.
last_name: ARNOLD
- first_name: JAKOB
full_name: STEINER, JAKOB
last_name: STEINER
- first_name: Francesca
full_name: Pellicciotti, Francesca
id: b28f055a-81ea-11ed-b70c-a9fe7f7b0e70
last_name: Pellicciotti
citation:
ama: MILES ES, WILLIS IC, ARNOLD NS, STEINER J, Pellicciotti F. Spatial, seasonal
and interannual variability of supraglacial ponds in the Langtang Valley of Nepal,
1999–2013. Journal of Glaciology. 2017;63(237):88-105. doi:10.1017/jog.2016.120
apa: MILES, E. S., WILLIS, I. C., ARNOLD, N. S., STEINER, J., & Pellicciotti,
F. (2017). Spatial, seasonal and interannual variability of supraglacial ponds
in the Langtang Valley of Nepal, 1999–2013. Journal of Glaciology. Cambridge
University Press. https://doi.org/10.1017/jog.2016.120
chicago: MILES, EVAN S., IAN C. WILLIS, NEIL S. ARNOLD, JAKOB STEINER, and Francesca
Pellicciotti. “Spatial, Seasonal and Interannual Variability of Supraglacial Ponds
in the Langtang Valley of Nepal, 1999–2013.” Journal of Glaciology. Cambridge
University Press, 2017. https://doi.org/10.1017/jog.2016.120.
ieee: E. S. MILES, I. C. WILLIS, N. S. ARNOLD, J. STEINER, and F. Pellicciotti,
“Spatial, seasonal and interannual variability of supraglacial ponds in the Langtang
Valley of Nepal, 1999–2013,” Journal of Glaciology, vol. 63, no. 237. Cambridge
University Press, pp. 88–105, 2017.
ista: MILES ES, WILLIS IC, ARNOLD NS, STEINER J, Pellicciotti F. 2017. Spatial,
seasonal and interannual variability of supraglacial ponds in the Langtang Valley
of Nepal, 1999–2013. Journal of Glaciology. 63(237), 88–105.
mla: MILES, EVAN S., et al. “Spatial, Seasonal and Interannual Variability of Supraglacial
Ponds in the Langtang Valley of Nepal, 1999–2013.” Journal of Glaciology,
vol. 63, no. 237, Cambridge University Press, 2017, pp. 88–105, doi:10.1017/jog.2016.120.
short: E.S. MILES, I.C. WILLIS, N.S. ARNOLD, J. STEINER, F. Pellicciotti, Journal
of Glaciology 63 (2017) 88–105.
date_created: 2023-02-20T08:14:16Z
date_published: 2017-02-01T00:00:00Z
date_updated: 2023-02-24T11:38:31Z
day: '01'
doi: 10.1017/jog.2016.120
extern: '1'
intvolume: ' 63'
issue: '237'
keyword:
- Earth-Surface Processes
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1017/jog.2016.120
month: '02'
oa: 1
oa_version: Published Version
page: 88-105
publication: Journal of Glaciology
publication_identifier:
eissn:
- 1727-5652
issn:
- 0022-1430
publication_status: published
publisher: Cambridge University Press
quality_controlled: '1'
scopus_import: '1'
status: public
title: Spatial, seasonal and interannual variability of supraglacial ponds in the
Langtang Valley of Nepal, 1999–2013
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 63
year: '2017'
...
---
_id: '12905'
article_processing_charge: No
author:
- first_name: Alois
full_name: Schlögl, Alois
id: 45BF87EE-F248-11E8-B48F-1D18A9856A87
last_name: Schlögl
orcid: 0000-0002-5621-8100
- first_name: Janos
full_name: Kiss, Janos
id: 3D3A06F8-F248-11E8-B48F-1D18A9856A87
last_name: Kiss
citation:
ama: 'Schlögl A, Kiss J. Scientific Computing at IST Austria. In: AHPC17 – Austrian
HPC Meeting 2017. FSP Scientific Computing; 2017:28.'
apa: 'Schlögl, A., & Kiss, J. (2017). Scientific Computing at IST Austria. In
AHPC17 – Austrian HPC Meeting 2017 (p. 28). Grundlsee, Austria: FSP Scientific
Computing.'
chicago: Schlögl, Alois, and Janos Kiss. “Scientific Computing at IST Austria.”
In AHPC17 – Austrian HPC Meeting 2017, 28. FSP Scientific Computing, 2017.
ieee: A. Schlögl and J. Kiss, “Scientific Computing at IST Austria,” in AHPC17
– Austrian HPC Meeting 2017, Grundlsee, Austria, 2017, p. 28.
ista: 'Schlögl A, Kiss J. 2017. Scientific Computing at IST Austria. AHPC17 – Austrian
HPC Meeting 2017. AHPC: Austrian HPC Meeting, 28.'
mla: Schlögl, Alois, and Janos Kiss. “Scientific Computing at IST Austria.” AHPC17
– Austrian HPC Meeting 2017, FSP Scientific Computing, 2017, p. 28.
short: A. Schlögl, J. Kiss, in:, AHPC17 – Austrian HPC Meeting 2017, FSP Scientific
Computing, 2017, p. 28.
conference:
end_date: 2017-03-03
location: Grundlsee, Austria
name: 'AHPC: Austrian HPC Meeting'
start_date: 2017-03-01
corr_author: '1'
date_created: 2023-05-05T12:58:53Z
date_published: 2017-03-03T00:00:00Z
date_updated: 2024-10-09T21:05:23Z
day: '03'
ddc:
- '000'
department:
- _id: ScienComp
file:
- access_level: open_access
checksum: 7bcc499479d4f4c5ce6c0071c24ca6c6
content_type: application/pdf
creator: dernst
date_created: 2023-05-16T07:20:50Z
date_updated: 2023-05-16T07:20:50Z
file_id: '12969'
file_name: 2017_AHPC_Schloegl.pdf
file_size: 1005486
relation: main_file
success: 1
file_date_updated: 2023-05-16T07:20:50Z
has_accepted_license: '1'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://vsc.ac.at/fileadmin/user_upload/vsc/conferences/ahpc17/BOOKLET_AHPC17.pdf
month: '03'
oa: 1
oa_version: Published Version
page: '28'
publication: AHPC17 – Austrian HPC Meeting 2017
publication_status: published
publisher: FSP Scientific Computing
status: public
title: Scientific Computing at IST Austria
type: conference_abstract
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2017'
...
---
_id: '1294'
abstract:
- lang: eng
text: We study controller synthesis problems for finite-state Markov decision processes,
where the objective is to optimize the expected mean-payoff performance and stability
(also known as variability in the literature). We argue that the basic notion
of expressing the stability using the statistical variance of the mean payoff
is sometimes insufficient, and propose an alternative definition. We show that
a strategy ensuring both the expected mean payoff and the variance below given
bounds requires randomization and memory, under both the above definitions. We
then show that the problem of finding such a strategy can be expressed as a set
of constraints.
article_processing_charge: No
author:
- first_name: Tomáš
full_name: Brázdil, Tomáš
last_name: Brázdil
- first_name: Krishnendu
full_name: Chatterjee, Krishnendu
id: 2E5DCA20-F248-11E8-B48F-1D18A9856A87
last_name: Chatterjee
orcid: 0000-0002-4561-241X
- first_name: Vojtěch
full_name: Forejt, Vojtěch
last_name: Forejt
- first_name: Antonín
full_name: Kučera, Antonín
last_name: Kučera
citation:
ama: Brázdil T, Chatterjee K, Forejt V, Kučera A. Trading performance for stability
in Markov decision processes. Journal of Computer and System Sciences.
2017;84:144-170. doi:10.1016/j.jcss.2016.09.009
apa: Brázdil, T., Chatterjee, K., Forejt, V., & Kučera, A. (2017). Trading performance
for stability in Markov decision processes. Journal of Computer and System
Sciences. Elsevier. https://doi.org/10.1016/j.jcss.2016.09.009
chicago: Brázdil, Tomáš, Krishnendu Chatterjee, Vojtěch Forejt, and Antonín Kučera.
“Trading Performance for Stability in Markov Decision Processes.” Journal of
Computer and System Sciences. Elsevier, 2017. https://doi.org/10.1016/j.jcss.2016.09.009.
ieee: T. Brázdil, K. Chatterjee, V. Forejt, and A. Kučera, “Trading performance
for stability in Markov decision processes,” Journal of Computer and System
Sciences, vol. 84. Elsevier, pp. 144–170, 2017.
ista: Brázdil T, Chatterjee K, Forejt V, Kučera A. 2017. Trading performance for
stability in Markov decision processes. Journal of Computer and System Sciences.
84, 144–170.
mla: Brázdil, Tomáš, et al. “Trading Performance for Stability in Markov Decision
Processes.” Journal of Computer and System Sciences, vol. 84, Elsevier,
2017, pp. 144–70, doi:10.1016/j.jcss.2016.09.009.
short: T. Brázdil, K. Chatterjee, V. Forejt, A. Kučera, Journal of Computer and
System Sciences 84 (2017) 144–170.
date_created: 2018-12-11T11:51:12Z
date_published: 2017-03-01T00:00:00Z
date_updated: 2025-09-29T14:16:56Z
day: '01'
ddc:
- '004'
- '006'
department:
- _id: KrCh
doi: 10.1016/j.jcss.2016.09.009
ec_funded: 1
external_id:
isi:
- '000388430000011'
file:
- access_level: open_access
checksum: 91271b23cf884d7c06d33bef0cd623b1
content_type: application/pdf
creator: system
date_created: 2018-12-12T10:11:30Z
date_updated: 2020-07-14T12:44:42Z
file_id: '4885'
file_name: IST-2016-717-v1+1_1-s2.0-S0022000016300897-main.pdf
file_size: 708657
relation: main_file
file_date_updated: 2020-07-14T12:44:42Z
has_accepted_license: '1'
intvolume: ' 84'
isi: 1
language:
- iso: eng
month: '03'
oa: 1
oa_version: Published Version
page: 144 - 170
project:
- _id: 2584A770-B435-11E9-9278-68D0E5697425
call_identifier: FWF
grant_number: P 23499-N23
name: Modern Graph Algorithmic Techniques in Formal Verification
- _id: 25863FF4-B435-11E9-9278-68D0E5697425
call_identifier: FWF
grant_number: S11407
name: Game Theory
- _id: 2581B60A-B435-11E9-9278-68D0E5697425
call_identifier: FP7
grant_number: '279307'
name: 'Quantitative Graph Games: Theory and Applications'
- _id: 2587B514-B435-11E9-9278-68D0E5697425
name: Microsoft Research Faculty Fellowship
publication: Journal of Computer and System Sciences
publication_status: published
publisher: Elsevier
publist_id: '6009'
pubrep_id: '717'
quality_controlled: '1'
related_material:
record:
- id: '2305'
relation: earlier_version
status: public
scopus_import: '1'
status: public
title: Trading performance for stability in Markov decision processes
tmp:
image: /images/cc_by.png
legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
short: CC BY (4.0)
type: journal_article
user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1
volume: 84
year: '2017'
...
---
_id: '13160'
abstract:
- lang: eng
text: "Transforming deterministic ω\r\n-automata into deterministic parity automata
is traditionally done using variants of appearance records. We present a more
efficient variant of this approach, tailored to Rabin automata, and several optimizations
applicable to all appearance records. We compare the methods experimentally and
find out that our method produces smaller automata than previous approaches. Moreover,
the experiments demonstrate the potential of our method for LTL synthesis, using
LTL-to-Rabin translators. It leads to significantly smaller parity automata when
compared to state-of-the-art approaches on complex formulae."
acknowledgement: This work is partially funded by the DFG project “Verified Model
Checkers” and by the Czech Science Foundation, grant No. P202/12/G061.
alternative_title:
- LNCS
article_processing_charge: No
arxiv: 1
author:
- first_name: Jan
full_name: Kretinsky, Jan
id: 44CEF464-F248-11E8-B48F-1D18A9856A87
last_name: Kretinsky
orcid: 0000-0002-8122-2881
- first_name: Tobias
full_name: Meggendorfer, Tobias
id: b21b0c15-30a2-11eb-80dc-f13ca25802e1
last_name: Meggendorfer
orcid: 0000-0002-1712-2165
- first_name: Clara
full_name: Waldmann, Clara
last_name: Waldmann
- first_name: Maximilian
full_name: Weininger, Maximilian
last_name: Weininger
citation:
ama: 'Kretinsky J, Meggendorfer T, Waldmann C, Weininger M. Index appearance record
for transforming Rabin automata into parity automata. In: Tools and Algorithms
for the Construction and Analysis of Systems. Vol 10205. Springer; 2017:443-460.
doi:10.1007/978-3-662-54577-5_26'
apa: 'Kretinsky, J., Meggendorfer, T., Waldmann, C., & Weininger, M. (2017).
Index appearance record for transforming Rabin automata into parity automata.
In Tools and Algorithms for the Construction and Analysis of Systems (Vol.
10205, pp. 443–460). Uppsala, Sweden: Springer. https://doi.org/10.1007/978-3-662-54577-5_26'
chicago: Kretinsky, Jan, Tobias Meggendorfer, Clara Waldmann, and Maximilian Weininger.
“Index Appearance Record for Transforming Rabin Automata into Parity Automata.”
In Tools and Algorithms for the Construction and Analysis of Systems, 10205:443–60.
Springer, 2017. https://doi.org/10.1007/978-3-662-54577-5_26.
ieee: J. Kretinsky, T. Meggendorfer, C. Waldmann, and M. Weininger, “Index appearance
record for transforming Rabin automata into parity automata,” in Tools and
Algorithms for the Construction and Analysis of Systems, Uppsala, Sweden,
2017, vol. 10205, pp. 443–460.
ista: 'Kretinsky J, Meggendorfer T, Waldmann C, Weininger M. 2017. Index appearance
record for transforming Rabin automata into parity automata. Tools and Algorithms
for the Construction and Analysis of Systems. TACAS: Tools and Algorithms for
the Construction and Analysis of Systems, LNCS, vol. 10205, 443–460.'
mla: Kretinsky, Jan, et al. “Index Appearance Record for Transforming Rabin Automata
into Parity Automata.” Tools and Algorithms for the Construction and Analysis
of Systems, vol. 10205, Springer, 2017, pp. 443–60, doi:10.1007/978-3-662-54577-5_26.
short: J. Kretinsky, T. Meggendorfer, C. Waldmann, M. Weininger, in:, Tools and
Algorithms for the Construction and Analysis of Systems, Springer, 2017, pp. 443–460.
conference:
end_date: 2017-04-29
location: Uppsala, Sweden
name: 'TACAS: Tools and Algorithms for the Construction and Analysis of Systems'
start_date: 2017-04-22
corr_author: '1'
date_created: 2023-06-21T13:21:14Z
date_published: 2017-03-31T00:00:00Z
date_updated: 2025-09-18T10:42:48Z
day: '31'
department:
- _id: KrCh
doi: 10.1007/978-3-662-54577-5_26
external_id:
arxiv:
- '1701.05738'
isi:
- '000440734900026'
intvolume: ' 10205'
isi: 1
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.48550/arXiv.1701.05738
month: '03'
oa: 1
oa_version: Preprint
page: 443-460
publication: Tools and Algorithms for the Construction and Analysis of Systems
publication_identifier:
eisbn:
- '9783662545775'
eissn:
- 1611-3349
isbn:
- '9783662545768'
issn:
- 0302-9743
publication_status: published
publisher: Springer
quality_controlled: '1'
status: public
title: Index appearance record for transforming Rabin automata into parity automata
type: conference
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 10205
year: '2017'
...
---
DOAJ_listed: '1'
OA_place: publisher
OA_type: gold
_id: '21098'
abstract:
- lang: eng
text: The growth of crystals of aromatic compounds from water much depends on the
nature of the water solubilizing functions that they carry. Rationalizing crystallization
from water, and structure elucidation, of aromatic molecular and supramolecular
systems is of general value across various fields of chemistry. Taking helical
aromatic foldamers as a test case, we have validated several short polar side
chains as efficient substituents to provide both solubility in, and crystal growth
ability from, water. New 8-amino-2-quinolinecarboxylic acids bearing charged or
neutral aminomethyl, carboxymethyl, sulfonic acid, or bis(hydroxymethyl)-methoxy
side chains in position 4 or 5, were prepared on a multi gram scale. Fmoc protection
of the main chain amine and suitable protections of the side chains ensured compatibility
with solid phase synthesis. One tetrameric and five octameric oligoamides displaying
these side chains were synthesized and shown to be soluble in water. In all cases
but one, crystals were obtained using the hanging drop method, thus validating
the initial design principle to combine polarity and rigidity. The only case that
resisted crystallization appeared to be due to exceedingly high water solubility
endowed by eight sulfonic acid functions. The neutral side chain did provide crystal
growth ability from water but contributed poorly to solubility.
article_processing_charge: No
article_type: original
author:
- first_name: Xiaobo
full_name: Hu, Xiaobo
last_name: Hu
- first_name: Simon J.
full_name: Dawson, Simon J.
last_name: Dawson
- first_name: Pradeep K
full_name: Mandal, Pradeep K
id: 6a3def15-d4b4-11ef-9fa9-a24c1f545ec3
last_name: Mandal
orcid: 0000-0001-5996-956X
- first_name: Xavier
full_name: de Hatten, Xavier
last_name: de Hatten
- first_name: Benoit
full_name: Baptiste, Benoit
last_name: Baptiste
- first_name: Ivan
full_name: Huc, Ivan
last_name: Huc
citation:
ama: 'Hu X, Dawson SJ, Mandal PK, de Hatten X, Baptiste B, Huc I. Optimizing side
chains for crystal growth from water: a case study of aromatic amide foldamers.
Chemical Science. 2017;8(5):3741-3749. doi:10.1039/c7sc00430c'
apa: 'Hu, X., Dawson, S. J., Mandal, P. K., de Hatten, X., Baptiste, B., & Huc,
I. (2017). Optimizing side chains for crystal growth from water: a case study
of aromatic amide foldamers. Chemical Science. Royal Society of Chemistry.
https://doi.org/10.1039/c7sc00430c'
chicago: 'Hu, Xiaobo, Simon J. Dawson, Pradeep K Mandal, Xavier de Hatten, Benoit
Baptiste, and Ivan Huc. “Optimizing Side Chains for Crystal Growth from Water:
A Case Study of Aromatic Amide Foldamers.” Chemical Science. Royal Society
of Chemistry, 2017. https://doi.org/10.1039/c7sc00430c.'
ieee: 'X. Hu, S. J. Dawson, P. K. Mandal, X. de Hatten, B. Baptiste, and I. Huc,
“Optimizing side chains for crystal growth from water: a case study of aromatic
amide foldamers,” Chemical Science, vol. 8, no. 5. Royal Society of Chemistry,
pp. 3741–3749, 2017.'
ista: 'Hu X, Dawson SJ, Mandal PK, de Hatten X, Baptiste B, Huc I. 2017. Optimizing
side chains for crystal growth from water: a case study of aromatic amide foldamers.
Chemical Science. 8(5), 3741–3749.'
mla: 'Hu, Xiaobo, et al. “Optimizing Side Chains for Crystal Growth from Water:
A Case Study of Aromatic Amide Foldamers.” Chemical Science, vol. 8, no.
5, Royal Society of Chemistry, 2017, pp. 3741–49, doi:10.1039/c7sc00430c.'
short: X. Hu, S.J. Dawson, P.K. Mandal, X. de Hatten, B. Baptiste, I. Huc, Chemical
Science 8 (2017) 3741–3749.
date_created: 2026-01-29T21:31:01Z
date_published: 2017-03-08T00:00:00Z
date_updated: 2026-02-23T09:53:30Z
day: '08'
doi: 10.1039/c7sc00430c
extern: '1'
has_accepted_license: '1'
intvolume: ' 8'
issue: '5'
language:
- iso: eng
license: https://creativecommons.org/licenses/by-nc/3.0/
main_file_link:
- open_access: '1'
url: https://doi.org/10.1039/C7SC00430C
month: '03'
oa: 1
oa_version: Published Version
page: 3741-3749
publication: Chemical Science
publication_identifier:
eissn:
- 2041-6539
issn:
- 2041-6520
publication_status: published
publisher: Royal Society of Chemistry
quality_controlled: '1'
status: public
title: 'Optimizing side chains for crystal growth from water: a case study of aromatic
amide foldamers'
tmp:
image: /images/cc_by_nc.png
legal_code_url: https://creativecommons.org/licenses/by-nc/3.0/legalcode
name: Creative Commons Attribution-NonCommercial 3.0 Unported (CC BY-NC 3.0)
short: CC BY-NC (3.0)
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 8
year: '2017'
...
---
OA_type: closed access
_id: '21156'
abstract:
- lang: eng
text: The crystal structure of the tetradecanucleotide d(CCCCGGTACCGGGG)2 has previously
been reported as an A-type double helix at a resolution of 2.5 Å in space group
P41. Here, the structure of this sequence was determined at a significantly higher
resolution of 1.65 Å in space group P41212. The differences in crystal packing
between the former and latter are described. The crystallographic asymmetric unit
consists of one tetradecanucleotide duplex that spans more than one full turn
of the A-helix. This structure allowed the unambiguous identification of solvent
interactions.
article_processing_charge: No
article_type: original
author:
- first_name: Selvam
full_name: Karthik, Selvam
last_name: Karthik
- first_name: Arunachalam
full_name: Thirugnanasambandam, Arunachalam
last_name: Thirugnanasambandam
- first_name: Pradeep K
full_name: Mandal, Pradeep K
id: 6a3def15-d4b4-11ef-9fa9-a24c1f545ec3
last_name: Mandal
orcid: 0000-0001-5996-956X
- first_name: Namasivayam
full_name: Gautham, Namasivayam
last_name: Gautham
citation:
ama: Karthik S, Thirugnanasambandam A, Mandal PK, Gautham N. Crystal structure of
d(CCGGGGTACCCCGG)2 at 1.4 Å resolution. Acta Crystallographica Section F Structural
Biology Communications. 2017;73(5):259-265. doi:10.1107/s2053230x17004770
apa: Karthik, S., Thirugnanasambandam, A., Mandal, P. K., & Gautham, N. (2017).
Crystal structure of d(CCGGGGTACCCCGG)2 at 1.4 Å resolution. Acta Crystallographica
Section F Structural Biology Communications. International Union of Crystallography.
https://doi.org/10.1107/s2053230x17004770
chicago: Karthik, Selvam, Arunachalam Thirugnanasambandam, Pradeep K Mandal, and
Namasivayam Gautham. “Crystal Structure of d(CCGGGGTACCCCGG)2 at 1.4 Å Resolution.”
Acta Crystallographica Section F Structural Biology Communications. International
Union of Crystallography, 2017. https://doi.org/10.1107/s2053230x17004770.
ieee: S. Karthik, A. Thirugnanasambandam, P. K. Mandal, and N. Gautham, “Crystal
structure of d(CCGGGGTACCCCGG)2 at 1.4 Å resolution,” Acta Crystallographica
Section F Structural Biology Communications, vol. 73, no. 5. International
Union of Crystallography, pp. 259–265, 2017.
ista: Karthik S, Thirugnanasambandam A, Mandal PK, Gautham N. 2017. Crystal structure
of d(CCGGGGTACCCCGG)2 at 1.4 Å resolution. Acta Crystallographica Section F Structural
Biology Communications. 73(5), 259–265.
mla: Karthik, Selvam, et al. “Crystal Structure of d(CCGGGGTACCCCGG)2 at 1.4 Å Resolution.”
Acta Crystallographica Section F Structural Biology Communications, vol.
73, no. 5, International Union of Crystallography, 2017, pp. 259–65, doi:10.1107/s2053230x17004770.
short: S. Karthik, A. Thirugnanasambandam, P.K. Mandal, N. Gautham, Acta Crystallographica
Section F Structural Biology Communications 73 (2017) 259–265.
date_created: 2026-02-06T12:26:15Z
date_published: 2017-05-01T00:00:00Z
date_updated: 2026-02-23T08:23:34Z
day: '01'
doi: 10.1107/s2053230x17004770
extern: '1'
has_accepted_license: '1'
intvolume: ' 73'
issue: '5'
language:
- iso: eng
month: '05'
oa_version: None
page: 259-265
publication: Acta Crystallographica Section F Structural Biology Communications
publication_identifier:
issn:
- 2053-230X
publication_status: published
publisher: International Union of Crystallography
quality_controlled: '1'
status: public
title: Crystal structure of d(CCGGGGTACCCCGG)2 at 1.4 Å resolution
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 73
year: '2017'
...
---
OA_type: closed access
_id: '21157'
abstract:
- lang: eng
text: We present here a comparison of three different X-ray crystal structures of
DNA tetradecamer sequence d(CCCGGGTACCCGGG)2 all at about 1.7 Å resolution. The
sequence was designed as an attempt to form a DNA four-way junction with A-type
helical arms. However, in the presence of zinc, magnesium, and in the absence
of any metal ion, it does not take up the junction structure, but forms an A-type
double helix. This allowed us to study possible conformational changes in the
double helix due to the presence of metal ions. Upon addition of the zinc ion,
there is a change in the space group from P41212 to P41. The overall conformation
of the duplex remains the same. There are small changes in the interaction of
the metal ions with the DNA. In the zinc-bound structure, there are two zinc ions
that show direct interaction with the N7 atoms of terminal G13 bases at either
end of the molecule. There are small changes in the interhelical contacts. The
consequence of these differences is to break some of the symmetry and change the
space group.
article_processing_charge: No
article_type: original
author:
- first_name: S.
full_name: Karthik, S.
last_name: Karthik
- first_name: A.
full_name: Thirugnanasambandam, A.
last_name: Thirugnanasambandam
- first_name: Pradeep K
full_name: Mandal, Pradeep K
id: 6a3def15-d4b4-11ef-9fa9-a24c1f545ec3
last_name: Mandal
orcid: 0000-0001-5996-956X
- first_name: N.
full_name: Gautham, N.
last_name: Gautham
citation:
ama: Karthik S, Thirugnanasambandam A, Mandal PK, Gautham N. Comparison of X-ray
crystal structures of a tetradecamer sequence d(CCCGGGTACCCGGG)2 at 1.7 Å resolution.
Nucleosides, Nucleotides and Nucleic Acids. 2017;36(5):343-354. doi:10.1080/15257770.2017.1287378
apa: Karthik, S., Thirugnanasambandam, A., Mandal, P. K., & Gautham, N. (2017).
Comparison of X-ray crystal structures of a tetradecamer sequence d(CCCGGGTACCCGGG)2
at 1.7 Å resolution. Nucleosides, Nucleotides and Nucleic Acids. Informa
UK Limited. https://doi.org/10.1080/15257770.2017.1287378
chicago: Karthik, S., A. Thirugnanasambandam, Pradeep K Mandal, and N. Gautham.
“Comparison of X-Ray Crystal Structures of a Tetradecamer Sequence d(CCCGGGTACCCGGG)2
at 1.7 Å Resolution.” Nucleosides, Nucleotides and Nucleic Acids. Informa
UK Limited, 2017. https://doi.org/10.1080/15257770.2017.1287378.
ieee: S. Karthik, A. Thirugnanasambandam, P. K. Mandal, and N. Gautham, “Comparison
of X-ray crystal structures of a tetradecamer sequence d(CCCGGGTACCCGGG)2 at 1.7 Å
resolution,” Nucleosides, Nucleotides and Nucleic Acids, vol. 36, no. 5.
Informa UK Limited, pp. 343–354, 2017.
ista: Karthik S, Thirugnanasambandam A, Mandal PK, Gautham N. 2017. Comparison of
X-ray crystal structures of a tetradecamer sequence d(CCCGGGTACCCGGG)2 at 1.7 Å
resolution. Nucleosides, Nucleotides and Nucleic Acids. 36(5), 343–354.
mla: Karthik, S., et al. “Comparison of X-Ray Crystal Structures of a Tetradecamer
Sequence d(CCCGGGTACCCGGG)2 at 1.7 Å Resolution.” Nucleosides, Nucleotides
and Nucleic Acids, vol. 36, no. 5, Informa UK Limited, 2017, pp. 343–54, doi:10.1080/15257770.2017.1287378.
short: S. Karthik, A. Thirugnanasambandam, P.K. Mandal, N. Gautham, Nucleosides,
Nucleotides and Nucleic Acids 36 (2017) 343–354.
date_created: 2026-02-06T12:27:54Z
date_published: 2017-04-07T00:00:00Z
date_updated: 2026-02-20T07:13:25Z
day: '07'
doi: 10.1080/15257770.2017.1287378
extern: '1'
external_id:
pmid:
- '28387634'
has_accepted_license: '1'
intvolume: ' 36'
issue: '5'
language:
- iso: eng
month: '04'
oa_version: None
page: 343-354
pmid: 1
publication: Nucleosides, Nucleotides and Nucleic Acids
publication_identifier:
eissn:
- 1532-2335
issn:
- 1525-7770
publication_status: published
publisher: Informa UK Limited
quality_controlled: '1'
status: public
title: Comparison of X-ray crystal structures of a tetradecamer sequence d(CCCGGGTACCCGGG)2
at 1.7 Å resolution
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 36
year: '2017'
...
---
OA_type: green
_id: '21558'
abstract:
- lang: eng
text: The Smith-Purcell effect, observed when an electron beam passes in the vicinity
of a periodic structure, is a promising platform for the generation of electromagnetic
radiation in previously unreachable spectral ranges. However, most of the studies
of this radiation were performed on simple periodic gratings, whose radiation
spectrum exhibits a single peak and its higher harmonics predicted by a well-established
dispersion relation. Here, we propose a method to shape the spatial and spectral
far-field distribution of the radiation using complex periodic and aperiodic gratings.
We show, theoretically and experimentally, that engineering multiple peak spectra
with controlled widths located at desired wavelengths is achievable using Smith-Purcell
radiation. Our method opens the way to free-electron-driven sources with tailored
angular and spectral responses, and gives rise to focusing functionality for spectral
ranges where lenses are unavailable or inefficient.
article_number: '061801'
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Roei
full_name: Remez, Roei
last_name: Remez
- first_name: Niv
full_name: Shapira, Niv
last_name: Shapira
- first_name: Charles
full_name: Roques-Carmes, Charles
id: e2e68fc9-6505-11ef-a541-eb4e72cc3e82
last_name: Roques-Carmes
- first_name: Romain
full_name: Tirole, Romain
last_name: Tirole
- first_name: Yi
full_name: Yang, Yi
last_name: Yang
- first_name: Yossi
full_name: Lereah, Yossi
last_name: Lereah
- first_name: Marin
full_name: Soljačić, Marin
last_name: Soljačić
- first_name: Ido
full_name: Kaminer, Ido
last_name: Kaminer
- first_name: Ady
full_name: Arie, Ady
last_name: Arie
citation:
ama: Remez R, Shapira N, Roques-Carmes C, et al. Spectral and spatial shaping of
Smith-Purcell radiation. Physical Review A. 2017;96(6). doi:10.1103/physreva.96.061801
apa: Remez, R., Shapira, N., Roques-Carmes, C., Tirole, R., Yang, Y., Lereah, Y.,
… Arie, A. (2017). Spectral and spatial shaping of Smith-Purcell radiation. Physical
Review A. American Physical Society. https://doi.org/10.1103/physreva.96.061801
chicago: Remez, Roei, Niv Shapira, Charles Roques-Carmes, Romain Tirole, Yi Yang,
Yossi Lereah, Marin Soljačić, Ido Kaminer, and Ady Arie. “Spectral and Spatial
Shaping of Smith-Purcell Radiation.” Physical Review A. American Physical
Society, 2017. https://doi.org/10.1103/physreva.96.061801.
ieee: R. Remez et al., “Spectral and spatial shaping of Smith-Purcell radiation,”
Physical Review A, vol. 96, no. 6. American Physical Society, 2017.
ista: Remez R, Shapira N, Roques-Carmes C, Tirole R, Yang Y, Lereah Y, Soljačić
M, Kaminer I, Arie A. 2017. Spectral and spatial shaping of Smith-Purcell radiation.
Physical Review A. 96(6), 061801.
mla: Remez, Roei, et al. “Spectral and Spatial Shaping of Smith-Purcell Radiation.”
Physical Review A, vol. 96, no. 6, 061801, American Physical Society, 2017,
doi:10.1103/physreva.96.061801.
short: R. Remez, N. Shapira, C. Roques-Carmes, R. Tirole, Y. Yang, Y. Lereah, M.
Soljačić, I. Kaminer, A. Arie, Physical Review A 96 (2017).
date_created: 2026-03-30T12:22:47Z
date_published: 2017-12-06T00:00:00Z
date_updated: 2026-04-15T11:46:22Z
day: '06'
ddc:
- '530'
doi: 10.1103/physreva.96.061801
extern: '1'
external_id:
arxiv:
- '1710.03719'
intvolume: ' 96'
issue: '6'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.48550/arXiv.1710.03719
month: '12'
oa: 1
oa_version: Preprint
publication: Physical Review A
publication_identifier:
eissn:
- 2469-9934
issn:
- 2469-9926
publication_status: published
publisher: American Physical Society
quality_controlled: '1'
scopus_import: '1'
status: public
title: Spectral and spatial shaping of Smith-Purcell radiation
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 96
year: '2017'
...
---
OA_type: closed access
_id: '21569'
abstract:
- lang: eng
text: We present recent advances in metasurface-based photonics, which enables the
realization of high performance planar lenses (metalenses) in the visible spectrum.
They are enabled by a technique based on atomic layer deposition of titanium dioxide
allowing for the fabrication of nanostructures with high fidelity. First, we demonstrate
highly efficient metalenses with numerical aperture NA = 0.8 using the Pancharatnam-Berry
phase approach. These metalenses can focus light into a diffraction-limited spot.
They have efficiencies as high as 86% and provide high imaging resolution. Furthermore,
by judicious design of the phase-shifting elements, we achieve a multispectral
chiral metalens realized with a single metasurface layer. This chiral metalens
can resolve both the chiral and spectral information of an object without the
requirement of any additional optical components. Finally, we discuss the experimental
realization of polarization-insensitive metalenses with NAs as high as 0.85. They
are able to focus incident light to a spot as small as ~0.64λ with efficiencies
up to 60%. Due to its straightforward and CMOS-compatible fabrication, this platform
is promising for a wide range of applications ranging from camera modules, displays,
laser-based imaging, microscopy, and spectroscopy to laser fabrication and lithography.
article_processing_charge: No
article_type: original
author:
- first_name: Mohammadreza
full_name: Khorasaninejad, Mohammadreza
last_name: Khorasaninejad
- first_name: Wei Ting
full_name: Chen, Wei Ting
last_name: Chen
- first_name: Alexander Y.
full_name: Zhu, Alexander Y.
last_name: Zhu
- first_name: Jaewon
full_name: Oh, Jaewon
last_name: Oh
- first_name: Robert C.
full_name: Devlin, Robert C.
last_name: Devlin
- first_name: Charles
full_name: Roques-Carmes, Charles
id: e2e68fc9-6505-11ef-a541-eb4e72cc3e82
last_name: Roques-Carmes
- first_name: Ishan
full_name: Mishra, Ishan
last_name: Mishra
- first_name: Federico
full_name: Capasso, Federico
last_name: Capasso
citation:
ama: Khorasaninejad M, Chen WT, Zhu AY, et al. Visible wavelength planar metalenses
based on titanium dioxide. IEEE Journal of Selected Topics in Quantum Electronics.
2017;23(3):43-58. doi:10.1109/jstqe.2016.2616447
apa: Khorasaninejad, M., Chen, W. T., Zhu, A. Y., Oh, J., Devlin, R. C., Roques-Carmes,
C., … Capasso, F. (2017). Visible wavelength planar metalenses based on titanium
dioxide. IEEE Journal of Selected Topics in Quantum Electronics. Institute
of Electrical and Electronics Engineers. https://doi.org/10.1109/jstqe.2016.2616447
chicago: Khorasaninejad, Mohammadreza, Wei Ting Chen, Alexander Y. Zhu, Jaewon Oh,
Robert C. Devlin, Charles Roques-Carmes, Ishan Mishra, and Federico Capasso. “Visible
Wavelength Planar Metalenses Based on Titanium Dioxide.” IEEE Journal of Selected
Topics in Quantum Electronics. Institute of Electrical and Electronics Engineers,
2017. https://doi.org/10.1109/jstqe.2016.2616447.
ieee: M. Khorasaninejad et al., “Visible wavelength planar metalenses based
on titanium dioxide,” IEEE Journal of Selected Topics in Quantum Electronics,
vol. 23, no. 3. Institute of Electrical and Electronics Engineers, pp. 43–58,
2017.
ista: Khorasaninejad M, Chen WT, Zhu AY, Oh J, Devlin RC, Roques-Carmes C, Mishra
I, Capasso F. 2017. Visible wavelength planar metalenses based on titanium dioxide.
IEEE Journal of Selected Topics in Quantum Electronics. 23(3), 43–58.
mla: Khorasaninejad, Mohammadreza, et al. “Visible Wavelength Planar Metalenses
Based on Titanium Dioxide.” IEEE Journal of Selected Topics in Quantum Electronics,
vol. 23, no. 3, Institute of Electrical and Electronics Engineers, 2017, pp. 43–58,
doi:10.1109/jstqe.2016.2616447.
short: M. Khorasaninejad, W.T. Chen, A.Y. Zhu, J. Oh, R.C. Devlin, C. Roques-Carmes,
I. Mishra, F. Capasso, IEEE Journal of Selected Topics in Quantum Electronics
23 (2017) 43–58.
date_created: 2026-03-30T12:22:47Z
date_published: 2017-05-01T00:00:00Z
date_updated: 2026-04-15T12:14:59Z
day: '01'
doi: 10.1109/jstqe.2016.2616447
extern: '1'
intvolume: ' 23'
issue: '3'
language:
- iso: eng
month: '05'
oa_version: None
page: 43-58
publication: IEEE Journal of Selected Topics in Quantum Electronics
publication_identifier:
eissn:
- 1558-4542
issn:
- 1077-260X
publication_status: published
publisher: Institute of Electrical and Electronics Engineers
quality_controlled: '1'
scopus_import: '1'
status: public
title: Visible wavelength planar metalenses based on titanium dioxide
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 23
year: '2017'
...
---
OA_type: closed access
_id: '21573'
abstract:
- lang: eng
text: 'We present a new platform that realizes high performance metasurfaces in
the visible spectrum. This platform is based on atomic layer deposition of titanium
dioxide and allows molding incident light wavefront to desired shapes including
holographic images, optical vortices, and Bessel beams. The focus of this work
will be on the design and demonstration of planar metalenses. We report on our
recent experimental realization of high numerical aperture metalenses with efficiency
as high as 86%. These metalenses can focus light into a diffraction-limited spot
and can be employed for imaging purposes to provide sub-wavelength imaging resolution.
In addition, by the judicious design of metalens building blocks, one can achieve
a multispectral chiral metalens (MCML) within a single metasurface layer. The
MCML can simultaneously resolve chiral and spectral information of an object without
the requirement of additional optical components such as polarizers, wave-plates,
or even gratings. Using this MCML, we map the chiroptical properties of a macroscopic
chiral biological specimen across the visible range. Finally, since many applications
require polarization insensitive planar lenses, we discuss the experimental realization
of such metalenses with numerical apertures as high as NA=0.85. These metalenses
can focus incident light to a spot as small as ~0.6lambda with efficiencies up
to 70%. The straightforward and CMOS-compatible fabrication process of this platform
is promising for a wide range of optics-based applications in multidisciplinary
science and technology. '
article_number: '101130G '
article_processing_charge: No
author:
- first_name: Mohammadreza
full_name: Khorasaninejad, Mohammadreza
last_name: Khorasaninejad
- first_name: Wei Ting
full_name: Chen, Wei Ting
last_name: Chen
- first_name: Alexander Y.
full_name: Zhu, Alexander Y.
last_name: Zhu
- first_name: Jaewon
full_name: Oh, Jaewon
last_name: Oh
- first_name: Robert C.
full_name: Devlin, Robert C.
last_name: Devlin
- first_name: Charles
full_name: Roques-Carmes, Charles
id: e2e68fc9-6505-11ef-a541-eb4e72cc3e82
last_name: Roques-Carmes
- first_name: Ishan
full_name: Mishra, Ishan
last_name: Mishra
- first_name: Federico
full_name: Capasso, Federico
last_name: Capasso
citation:
ama: 'Khorasaninejad M, Chen WT, Zhu AY, et al. Planar optics at visible wavelengths
based on titanium dioxide . In: High Contrast Metastructures VI. Vol 10113.
; 2017. doi:10.1117/12.2255916'
apa: Khorasaninejad, M., Chen, W. T., Zhu, A. Y., Oh, J., Devlin, R. C., Roques-Carmes,
C., … Capasso, F. (2017). Planar optics at visible wavelengths based on titanium
dioxide . In High Contrast Metastructures VI (Vol. 10113). San Francisco,
CA, United States. https://doi.org/10.1117/12.2255916
chicago: Khorasaninejad, Mohammadreza, Wei Ting Chen, Alexander Y. Zhu, Jaewon Oh,
Robert C. Devlin, Charles Roques-Carmes, Ishan Mishra, and Federico Capasso. “Planar
Optics at Visible Wavelengths Based on Titanium Dioxide .” In High Contrast
Metastructures VI, Vol. 10113, 2017. https://doi.org/10.1117/12.2255916.
ieee: M. Khorasaninejad et al., “Planar optics at visible wavelengths based
on titanium dioxide ,” in High Contrast Metastructures VI, San Francisco,
CA, United States, 2017, vol. 10113.
ista: Khorasaninejad M, Chen WT, Zhu AY, Oh J, Devlin RC, Roques-Carmes C, Mishra
I, Capasso F. 2017. Planar optics at visible wavelengths based on titanium dioxide
. High Contrast Metastructures VI. SPIE OPTO vol. 10113, 101130G.
mla: Khorasaninejad, Mohammadreza, et al. “Planar Optics at Visible Wavelengths
Based on Titanium Dioxide .” High Contrast Metastructures VI, vol. 10113,
101130G, 2017, doi:10.1117/12.2255916.
short: M. Khorasaninejad, W.T. Chen, A.Y. Zhu, J. Oh, R.C. Devlin, C. Roques-Carmes,
I. Mishra, F. Capasso, in:, High Contrast Metastructures VI, 2017.
conference:
end_date: 2017-02-02
location: San Francisco, CA, United States
name: SPIE OPTO
start_date: 2017-01-28
date_created: 2026-03-30T12:22:47Z
date_published: 2017-04-28T00:00:00Z
date_updated: 2026-05-05T09:41:50Z
day: '28'
doi: 10.1117/12.2255916
extern: '1'
intvolume: ' 10113'
language:
- iso: eng
month: '04'
oa_version: None
publication: High Contrast Metastructures VI
publication_status: published
quality_controlled: '1'
status: public
title: 'Planar optics at visible wavelengths based on titanium dioxide '
type: conference
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 10113
year: '2017'
...
---
OA_type: closed access
_id: '21588'
abstract:
- lang: eng
text: We present experimental results demonstrating multiple order Smith-Purcell
radiation in high aspect ratio Silicon Nanowires structures using low-energy electrons
(2.5-10keV). These produce emission spanning the visible, paving the way to a
fully tunable ultraviolet source.
article_number: JTh5B.8
article_processing_charge: No
author:
- first_name: Aviram
full_name: Massuda, Aviram
last_name: Massuda
- first_name: Charles
full_name: Roques-Carmes, Charles
id: e2e68fc9-6505-11ef-a541-eb4e72cc3e82
last_name: Roques-Carmes
- first_name: Amit
full_name: Solanki, Amit
last_name: Solanki
- first_name: Yi
full_name: Yang, Yi
last_name: Yang
- first_name: Steven E.
full_name: Kooi, Steven E.
last_name: Kooi
- first_name: Fawwaz
full_name: Habbal, Fawwaz
last_name: Habbal
- first_name: Ido
full_name: Kaminer, Ido
last_name: Kaminer
- first_name: Marin
full_name: Soljačić, Marin
last_name: Soljačić
citation:
ama: 'Massuda A, Roques-Carmes C, Solanki A, et al. High-order Smith-Purcell radiation
in silicon nanowires. In: Conference on Lasers and Electro-Optics. Optica
Publishing Group; 2017. doi:10.1364/cleo_at.2017.jth5b.8'
apa: 'Massuda, A., Roques-Carmes, C., Solanki, A., Yang, Y., Kooi, S. E., Habbal,
F., … Soljačić, M. (2017). High-order Smith-Purcell radiation in silicon nanowires.
In Conference on Lasers and Electro-Optics. San Jose, CA, United States:
Optica Publishing Group. https://doi.org/10.1364/cleo_at.2017.jth5b.8'
chicago: Massuda, Aviram, Charles Roques-Carmes, Amit Solanki, Yi Yang, Steven E.
Kooi, Fawwaz Habbal, Ido Kaminer, and Marin Soljačić. “High-Order Smith-Purcell
Radiation in Silicon Nanowires.” In Conference on Lasers and Electro-Optics.
Optica Publishing Group, 2017. https://doi.org/10.1364/cleo_at.2017.jth5b.8.
ieee: A. Massuda et al., “High-order Smith-Purcell radiation in silicon nanowires,”
in Conference on Lasers and Electro-Optics, San Jose, CA, United States,
2017.
ista: 'Massuda A, Roques-Carmes C, Solanki A, Yang Y, Kooi SE, Habbal F, Kaminer
I, Soljačić M. 2017. High-order Smith-Purcell radiation in silicon nanowires.
Conference on Lasers and Electro-Optics. CLEO: Applications and Technology, JTh5B.8.'
mla: Massuda, Aviram, et al. “High-Order Smith-Purcell Radiation in Silicon Nanowires.”
Conference on Lasers and Electro-Optics, JTh5B.8, Optica Publishing Group,
2017, doi:10.1364/cleo_at.2017.jth5b.8.
short: A. Massuda, C. Roques-Carmes, A. Solanki, Y. Yang, S.E. Kooi, F. Habbal,
I. Kaminer, M. Soljačić, in:, Conference on Lasers and Electro-Optics, Optica
Publishing Group, 2017.
conference:
end_date: 2017-05-19
location: San Jose, CA, United States
name: 'CLEO: Applications and Technology'
start_date: 2017-05-14
date_created: 2026-03-30T12:22:48Z
date_published: 2017-06-01T00:00:00Z
date_updated: 2026-05-05T06:43:57Z
day: '01'
doi: 10.1364/cleo_at.2017.jth5b.8
extern: '1'
language:
- iso: eng
month: '06'
oa_version: None
publication: Conference on Lasers and Electro-Optics
publication_identifier:
eisbn:
- '9781943580279'
issnl:
- 2162-2701
publication_status: published
publisher: Optica Publishing Group
quality_controlled: '1'
scopus_import: '1'
status: public
title: High-order Smith-Purcell radiation in silicon nanowires
type: conference
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2017'
...
---
OA_place: repository
OA_type: green
_id: '21615'
abstract:
- lang: eng
text: Focused electron beams can induce electromagnetic radiation from periodic
surfaces. We have used low-energy electrons (1.5-6kV) to induce visible light
emission from nanoscale gratings (50nm and 60nm). Our results coincide well with
numerical simulations.
article_number: FM3H.6
article_processing_charge: No
arxiv: 1
author:
- first_name: Aviram
full_name: Massuda, Aviram
last_name: Massuda
- first_name: Charles
full_name: Roques-Carmes, Charles
id: e2e68fc9-6505-11ef-a541-eb4e72cc3e82
last_name: Roques-Carmes
- first_name: Yujia
full_name: Yang, Yujia
last_name: Yang
- first_name: Steven E.
full_name: Kooi, Steven E.
last_name: Kooi
- first_name: Yi
full_name: Yang, Yi
last_name: Yang
- first_name: Chitraang
full_name: Murdia, Chitraang
last_name: Murdia
- first_name: Karl K.
full_name: Berggren, Karl K.
last_name: Berggren
- first_name: Ido
full_name: Kaminer, Ido
last_name: Kaminer
- first_name: Marin
full_name: Soljačić, Marin
last_name: Soljačić
citation:
ama: 'Massuda A, Roques-Carmes C, Yang Y, et al. Smith-Purcell radiation from low-energy
electrons. In: Conference on Lasers and Electro-Optics. Optica Publishing
Group; 2017. doi:10.1364/cleo_qels.2017.fm3h.6'
apa: 'Massuda, A., Roques-Carmes, C., Yang, Y., Kooi, S. E., Yang, Y., Murdia, C.,
… Soljačić, M. (2017). Smith-Purcell radiation from low-energy electrons. In Conference
on Lasers and Electro-Optics. San Jose, CA, United States: Optica Publishing
Group. https://doi.org/10.1364/cleo_qels.2017.fm3h.6'
chicago: Massuda, Aviram, Charles Roques-Carmes, Yujia Yang, Steven E. Kooi, Yi
Yang, Chitraang Murdia, Karl K. Berggren, Ido Kaminer, and Marin Soljačić. “Smith-Purcell
Radiation from Low-Energy Electrons.” In Conference on Lasers and Electro-Optics.
Optica Publishing Group, 2017. https://doi.org/10.1364/cleo_qels.2017.fm3h.6.
ieee: A. Massuda et al., “Smith-Purcell radiation from low-energy electrons,”
in Conference on Lasers and Electro-Optics, San Jose, CA, United States,
2017.
ista: 'Massuda A, Roques-Carmes C, Yang Y, Kooi SE, Yang Y, Murdia C, Berggren KK,
Kaminer I, Soljačić M. 2017. Smith-Purcell radiation from low-energy electrons.
Conference on Lasers and Electro-Optics. CLEO: Fundamental Science, FM3H.6.'
mla: Massuda, Aviram, et al. “Smith-Purcell Radiation from Low-Energy Electrons.”
Conference on Lasers and Electro-Optics, FM3H.6, Optica Publishing Group,
2017, doi:10.1364/cleo_qels.2017.fm3h.6.
short: A. Massuda, C. Roques-Carmes, Y. Yang, S.E. Kooi, Y. Yang, C. Murdia, K.K.
Berggren, I. Kaminer, M. Soljačić, in:, Conference on Lasers and Electro-Optics,
Optica Publishing Group, 2017.
conference:
end_date: 2017-05-19
location: San Jose, CA, United States
name: 'CLEO: Fundamental Science'
start_date: 2017-05-14
date_created: 2026-03-30T12:22:48Z
date_published: 2017-05-01T00:00:00Z
date_updated: 2026-05-05T06:46:39Z
day: '01'
doi: 10.1364/cleo_qels.2017.fm3h.6
extern: '1'
external_id:
arxiv:
- '1710.05358'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.48550/arXiv.1710.05358
month: '05'
oa: 1
oa_version: Preprint
publication: Conference on Lasers and Electro-Optics
publication_identifier:
eisbn:
- '9781943580279'
publication_status: published
publisher: Optica Publishing Group
quality_controlled: '1'
scopus_import: '1'
status: public
title: Smith-Purcell radiation from low-energy electrons
type: conference
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2017'
...
---
_id: '1336'
abstract:
- lang: eng
text: Evolutionary algorithms (EAs) form a popular optimisation paradigm inspired
by natural evolution. In recent years the field of evolutionary computation has
developed a rigorous analytical theory to analyse the runtimes of EAs on many
illustrative problems. Here we apply this theory to a simple model of natural
evolution. In the Strong Selection Weak Mutation (SSWM) evolutionary regime the
time between occurrences of new mutations is much longer than the time it takes
for a mutated genotype to take over the population. In this situation, the population
only contains copies of one genotype and evolution can be modelled as a stochastic
process evolving one genotype by means of mutation and selection between the resident
and the mutated genotype. The probability of accepting the mutated genotype then
depends on the change in fitness. We study this process, SSWM, from an algorithmic
perspective, quantifying its expected optimisation time for various parameters
and investigating differences to a similar evolutionary algorithm, the well-known
(1+1) EA. We show that SSWM can have a moderate advantage over the (1+1) EA at
crossing fitness valleys and study an example where SSWM outperforms the (1+1)
EA by taking advantage of information on the fitness gradient.
article_processing_charge: No
author:
- first_name: Tiago
full_name: Paixao, Tiago
id: 2C5658E6-F248-11E8-B48F-1D18A9856A87
last_name: Paixao
orcid: 0000-0003-2361-3953
- first_name: Jorge
full_name: Pérez Heredia, Jorge
last_name: Pérez Heredia
- first_name: Dirk
full_name: Sudholt, Dirk
last_name: Sudholt
- first_name: Barbora
full_name: Trubenova, Barbora
id: 42302D54-F248-11E8-B48F-1D18A9856A87
last_name: Trubenova
orcid: 0000-0002-6873-2967
citation:
ama: Paixao T, Pérez Heredia J, Sudholt D, Trubenova B. Towards a runtime comparison
of natural and artificial evolution. Algorithmica. 2017;78(2):681-713.
doi:10.1007/s00453-016-0212-1
apa: Paixao, T., Pérez Heredia, J., Sudholt, D., & Trubenova, B. (2017). Towards
a runtime comparison of natural and artificial evolution. Algorithmica.
Springer. https://doi.org/10.1007/s00453-016-0212-1
chicago: Paixao, Tiago, Jorge Pérez Heredia, Dirk Sudholt, and Barbora Trubenova.
“Towards a Runtime Comparison of Natural and Artificial Evolution.” Algorithmica.
Springer, 2017. https://doi.org/10.1007/s00453-016-0212-1.
ieee: T. Paixao, J. Pérez Heredia, D. Sudholt, and B. Trubenova, “Towards a runtime
comparison of natural and artificial evolution,” Algorithmica, vol. 78,
no. 2. Springer, pp. 681–713, 2017.
ista: Paixao T, Pérez Heredia J, Sudholt D, Trubenova B. 2017. Towards a runtime
comparison of natural and artificial evolution. Algorithmica. 78(2), 681–713.
mla: Paixao, Tiago, et al. “Towards a Runtime Comparison of Natural and Artificial
Evolution.” Algorithmica, vol. 78, no. 2, Springer, 2017, pp. 681–713,
doi:10.1007/s00453-016-0212-1.
short: T. Paixao, J. Pérez Heredia, D. Sudholt, B. Trubenova, Algorithmica 78 (2017)
681–713.
date_created: 2018-12-11T11:51:27Z
date_published: 2017-06-01T00:00:00Z
date_updated: 2026-04-16T09:55:33Z
day: '01'
ddc:
- '576'
department:
- _id: NiBa
- _id: CaGu
doi: 10.1007/s00453-016-0212-1
ec_funded: 1
external_id:
isi:
- '000400379500013'
file:
- access_level: open_access
checksum: 7873f665a0c598ac747c908f34cb14b9
content_type: application/pdf
creator: system
date_created: 2018-12-12T10:10:19Z
date_updated: 2020-07-14T12:44:44Z
file_id: '4805'
file_name: IST-2016-658-v1+1_s00453-016-0212-1.pdf
file_size: 710206
relation: main_file
file_date_updated: 2020-07-14T12:44:44Z
has_accepted_license: '1'
intvolume: ' 78'
isi: 1
issue: '2'
language:
- iso: eng
month: '06'
oa: 1
oa_version: Published Version
page: 681 - 713
project:
- _id: 25B1EC9E-B435-11E9-9278-68D0E5697425
call_identifier: FP7
grant_number: '618091'
name: Speed of Adaptation in Population Genetics and Evolutionary Computation
publication: Algorithmica
publication_identifier:
issn:
- 0178-4617
publication_status: published
publisher: Springer
publist_id: '5931'
pubrep_id: '658'
quality_controlled: '1'
scopus_import: '1'
status: public
title: Towards a runtime comparison of natural and artificial evolution
tmp:
image: /images/cc_by.png
legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
short: CC BY (4.0)
type: journal_article
user_id: ba8df636-2132-11f1-aed0-ed93e2281fdd
volume: 78
year: '2017'
...
---
_id: '1337'
abstract:
- lang: eng
text: We consider the local eigenvalue distribution of large self-adjoint N×N random
matrices H=H∗ with centered independent entries. In contrast to previous works
the matrix of variances sij=\mathbbmE|hij|2 is not assumed to be stochastic. Hence
the density of states is not the Wigner semicircle law. Its possible shapes are
described in the companion paper (Ajanki et al. in Quadratic Vector Equations
on the Complex Upper Half Plane. arXiv:1506.05095). We show that as N grows, the
resolvent, G(z)=(H−z)−1, converges to a diagonal matrix, diag(m(z)), where m(z)=(m1(z),…,mN(z))
solves the vector equation −1/mi(z)=z+∑jsijmj(z) that has been analyzed in Ajanki
et al. (Quadratic Vector Equations on the Complex Upper Half Plane. arXiv:1506.05095).
We prove a local law down to the smallest spectral resolution scale, and bulk
universality for both real symmetric and complex hermitian symmetry classes.
acknowledgement: 'Open access funding provided by Institute of Science and Technology
(IST Austria). '
article_processing_charge: Yes (via OA deal)
author:
- first_name: Oskari H
full_name: Ajanki, Oskari H
id: 36F2FB7E-F248-11E8-B48F-1D18A9856A87
last_name: Ajanki
- first_name: László
full_name: Erdös, László
id: 4DBD5372-F248-11E8-B48F-1D18A9856A87
last_name: Erdös
orcid: 0000-0001-5366-9603
- first_name: Torben H
full_name: Krüger, Torben H
id: 3020C786-F248-11E8-B48F-1D18A9856A87
last_name: Krüger
orcid: 0000-0002-4821-3297
citation:
ama: Ajanki OH, Erdös L, Krüger TH. Universality for general Wigner-type matrices.
Probability Theory and Related Fields. 2017;169(3-4):667-727. doi:10.1007/s00440-016-0740-2
apa: Ajanki, O. H., Erdös, L., & Krüger, T. H. (2017). Universality for general
Wigner-type matrices. Probability Theory and Related Fields. Springer.
https://doi.org/10.1007/s00440-016-0740-2
chicago: Ajanki, Oskari H, László Erdös, and Torben H Krüger. “Universality for
General Wigner-Type Matrices.” Probability Theory and Related Fields. Springer,
2017. https://doi.org/10.1007/s00440-016-0740-2.
ieee: O. H. Ajanki, L. Erdös, and T. H. Krüger, “Universality for general Wigner-type
matrices,” Probability Theory and Related Fields, vol. 169, no. 3–4. Springer,
pp. 667–727, 2017.
ista: Ajanki OH, Erdös L, Krüger TH. 2017. Universality for general Wigner-type
matrices. Probability Theory and Related Fields. 169(3–4), 667–727.
mla: Ajanki, Oskari H., et al. “Universality for General Wigner-Type Matrices.”
Probability Theory and Related Fields, vol. 169, no. 3–4, Springer, 2017,
pp. 667–727, doi:10.1007/s00440-016-0740-2.
short: O.H. Ajanki, L. Erdös, T.H. Krüger, Probability Theory and Related Fields
169 (2017) 667–727.
corr_author: '1'
date_created: 2018-12-11T11:51:27Z
date_published: 2017-12-01T00:00:00Z
date_updated: 2026-04-16T09:55:44Z
day: '01'
ddc:
- '510'
- '530'
department:
- _id: LaEr
doi: 10.1007/s00440-016-0740-2
ec_funded: 1
external_id:
isi:
- '000414358400002'
file:
- access_level: open_access
checksum: 29f5a72c3f91e408aeb9e78344973803
content_type: application/pdf
creator: system
date_created: 2018-12-12T10:08:25Z
date_updated: 2020-07-14T12:44:44Z
file_id: '4686'
file_name: IST-2017-657-v1+2_s00440-016-0740-2.pdf
file_size: 988843
relation: main_file
file_date_updated: 2020-07-14T12:44:44Z
has_accepted_license: '1'
intvolume: ' 169'
isi: 1
issue: 3-4
language:
- iso: eng
month: '12'
oa: 1
oa_version: Published Version
page: 667 - 727
project:
- _id: 258DCDE6-B435-11E9-9278-68D0E5697425
call_identifier: FP7
grant_number: '338804'
name: Random matrices, universality and disordered quantum systems
- _id: B67AFEDC-15C9-11EA-A837-991A96BB2854
name: IST Austria Open Access Fund
publication: Probability Theory and Related Fields
publication_identifier:
issn:
- 0178-8051
publication_status: published
publisher: Springer
publist_id: '5930'
pubrep_id: '657'
quality_controlled: '1'
scopus_import: '1'
status: public
title: Universality for general Wigner-type matrices
tmp:
image: /images/cc_by.png
legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
short: CC BY (4.0)
type: journal_article
user_id: ba8df636-2132-11f1-aed0-ed93e2281fdd
volume: 169
year: '2017'
...