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Computational inverse design for cascaded systems of metasurface optics: comment

Zarei, S ; Sharif University of Technology | 2022

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  1. Type of Document: Article
  2. DOI: 10.1364/OE.448757
  3. Publisher: Optica Publishing Group (formerly OSA) , 2022
  4. Abstract:
  5. In a recently published article by Backer [Opt. Express 27(21), 30308 (2019).], a computational inverse design method is developed for designing optical systems composed of multiple metasurfaces. The forward propagation model used in this method was a discretized version of the angular spectrum propagator described by Goodman [Introduction to Fourier Optics, 1996]. However, slight modifications are necessary to increase the accuracy of this inverse design method. This comment examines the accuracy of the results obtained by the above-mentioned method by a full-wave electromagnetic solver and explains the reason of their difference. Thereafter, slight modifications to the method proposed by Backer are suggested, and the accuracy of final formulation is verified by a full-wave electromagnetic solver. © 2022 Optica Publishing Group
  6. Keywords:
  7. Inverse problems ; Spectrum analysis ; Angular spectrum ; Cascaded system ; Electromagnetic solvers ; Forward propagation ; Full waves ; Inverse design methods ; Inverse designs ; Metasurface ; Propagation models ; Design ; Optics ; Visual system
  8. Source: Optics Express ; Volume 30, Issue 20 , 2022 , Pages 36966-37005 ; 10944087 (ISSN)
  9. URL: https://opg.optica.org/oe/fulltext.cfm?uri=oe-27-21-30308&id=422067