Attosecond synchronization of extreme ultraviolet high harmonics from crystals

Vampa G, Lu J, You YS, Baykusheva DR, Wu M, Liu H, Schafer KJ, Gaarde MB, Reis DA, Ghimire S. 2020. Attosecond synchronization of extreme ultraviolet high harmonics from crystals. Journal of Physics B: Atomic, Molecular and Optical Physics. 53(14), 144003.

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Author
Vampa, Giulio; Lu, Jian; You, Yong Sing; Baykusheva, Denitsa RangelovaISTA; Wu, Mengxi; Liu, Hanzhe; Schafer, Kenneth J; Gaarde, Mette B; Reis, David A; Ghimire, Shambhu
Abstract
The interaction of strong near-infrared (NIR) laser pulses with wide-bandgap dielectrics produces high harmonics in the extreme ultraviolet (XUV) wavelength range. These observations have opened up the possibility of attosecond metrology in solids, which would benefit from a precise measurement of the emission times of individual harmonics with respect to the NIR laser field. Here we show that, when high-harmonics are detected from the input surface of a magnesium oxide crystal, a bichromatic probing of the XUV emission shows a clear synchronization largely consistent with a semiclassical model of electron–hole recollisions in bulk solids. On the other hand, the bichromatic spectrogram of harmonics originating from the exit surface of the 200 μm-thick crystal is strongly modified, indicating the influence of laser field distortions during propagation. Our tracking of sub-cycle electron and hole re-collisions at XUV energies is relevant to the development of solid-state sources of attosecond pulses.
Publishing Year
Date Published
2020-06-17
Journal Title
Journal of Physics B: Atomic, Molecular and Optical Physics
Volume
53
Issue
14
Article Number
144003
ISSN
eISSN
IST-REx-ID

Cite this

Vampa G, Lu J, You YS, et al. Attosecond synchronization of extreme ultraviolet high harmonics from crystals. Journal of Physics B: Atomic, Molecular and Optical Physics. 2020;53(14). doi:10.1088/1361-6455/ab8e56
Vampa, G., Lu, J., You, Y. S., Baykusheva, D. R., Wu, M., Liu, H., … Ghimire, S. (2020). Attosecond synchronization of extreme ultraviolet high harmonics from crystals. Journal of Physics B: Atomic, Molecular and Optical Physics. IOP Publishing. https://doi.org/10.1088/1361-6455/ab8e56
Vampa, Giulio, Jian Lu, Yong Sing You, Denitsa Rangelova Baykusheva, Mengxi Wu, Hanzhe Liu, Kenneth J Schafer, Mette B Gaarde, David A Reis, and Shambhu Ghimire. “Attosecond Synchronization of Extreme Ultraviolet High Harmonics from Crystals.” Journal of Physics B: Atomic, Molecular and Optical Physics. IOP Publishing, 2020. https://doi.org/10.1088/1361-6455/ab8e56.
G. Vampa et al., “Attosecond synchronization of extreme ultraviolet high harmonics from crystals,” Journal of Physics B: Atomic, Molecular and Optical Physics, vol. 53, no. 14. IOP Publishing, 2020.
Vampa G, Lu J, You YS, Baykusheva DR, Wu M, Liu H, Schafer KJ, Gaarde MB, Reis DA, Ghimire S. 2020. Attosecond synchronization of extreme ultraviolet high harmonics from crystals. Journal of Physics B: Atomic, Molecular and Optical Physics. 53(14), 144003.
Vampa, Giulio, et al. “Attosecond Synchronization of Extreme Ultraviolet High Harmonics from Crystals.” Journal of Physics B: Atomic, Molecular and Optical Physics, vol. 53, no. 14, 144003, IOP Publishing, 2020, doi:10.1088/1361-6455/ab8e56.
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