---
res:
  bibo_abstract:
  - Traditional optical elements and conventional metasurfaces obey shift-invariance
    in the paraxial regime. For imaging systems obeying paraxial shift-invariance,
    a small shift in input angle causes a corresponding shift in the sensor image.
    Shift-invariance has deep implications for the design and functionality of optical
    devices, such as the necessity of free space between components (as in compound
    objectives made of several curved surfaces). We present a method for nanophotonic
    inverse design of compact imaging systems whose resolution is not constrained
    by paraxial shift-invariance. Our method is end-to-end, in that it integrates
    density-based full-Maxwell topology optimization with a fully iterative elastic-net
    reconstruction algorithm. By the design of nanophotonic structures that scatter
    light in a non-shift-invariant manner, our optimized nanophotonic imaging system
    overcomes the limitations of paraxial shift-invariance, achieving accurate, noise-robust
    image reconstruction beyond shift-invariant resolution.@eng
  bibo_authorlist:
  - foaf_Person:
      foaf_givenName: William F.
      foaf_name: Li, William F.
      foaf_surname: Li
  - foaf_Person:
      foaf_givenName: Gaurav
      foaf_name: Arya, Gaurav
      foaf_surname: Arya
  - foaf_Person:
      foaf_givenName: Charles
      foaf_name: Roques-Carmes, Charles
      foaf_surname: Roques-Carmes
      foaf_workInfoHomepage: http://www.librecat.org/personId=e2e68fc9-6505-11ef-a541-eb4e72cc3e82
  - foaf_Person:
      foaf_givenName: Zin
      foaf_name: Lin, Zin
      foaf_surname: Lin
  - foaf_Person:
      foaf_givenName: Steven G.
      foaf_name: Johnson, Steven G.
      foaf_surname: Johnson
  - foaf_Person:
      foaf_givenName: Marin
      foaf_name: Soljačić, Marin
      foaf_surname: Soljačić
  bibo_doi: 10.1364/oe.492553
  bibo_issue: '15'
  bibo_volume: 31
  dct_date: 2023^xs_gYear
  dct_isPartOf:
  - http://id.crossref.org/issn/1094-4087
  dct_language: eng
  dct_publisher: Optica Publishing Group@
  dct_title: Transcending shift-invariance in the paraxial regime via end-to-end inverse
    design of freeform nanophotonics@
  fabio_hasPubmedId: '37475257'
...