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Optimization and uncertainty quantification of gradient index metasurfaces

Schmitt, Nikolai and Georg, Niklas and Gauthier, Brière and Loukrezis, Dimitrios and Héron, Sébastien and Lanteri, Stéphane and Klitis, Charalambos and Sorel, Marc and Römer, Ulrich and De Gersem, Herbert and Vézian, Stéphane and Genevet, Patrice (2019):
Optimization and uncertainty quantification of gradient index metasurfaces.
In: Optical Materials Express, OSA, pp. 892-910, 9, (2), DOI: 10.1364/OME.9.000892, [Online-Edition: http://www.osapublishing.org/ome/abstract.cfm?URI=ome-9-2-89...],
[Article]

Abstract

The design of intrinsically flat two-dimensional optical components, i.e., metasurfaces, generally requires an extensive parameter search to target the appropriate scattering properties of their constituting building blocks. Such design methodologies neglect important near-field interaction effects, playing an essential role in limiting the device performance. Optimization of transmission, phase-addressing and broadband performances of metasurfaces require new numerical tools. Additionally, uncertainties and systematic fabrication errors should be analysed. These estimations, of critical importance in the case of large production of metaoptics components, are useful to further project their deployment in industrial applications. Here, we report on a computational methodology to optimize metasurface designs. We complement this computational methodology by quantifying the impact of fabrication uncertainties on the experimentally characterized components. This analysis provides general perspectives on the overall metaoptics performances, giving an idea of the expected average behavior of a large number of devices.

Item Type: Article
Erschienen: 2019
Creators: Schmitt, Nikolai and Georg, Niklas and Gauthier, Brière and Loukrezis, Dimitrios and Héron, Sébastien and Lanteri, Stéphane and Klitis, Charalambos and Sorel, Marc and Römer, Ulrich and De Gersem, Herbert and Vézian, Stéphane and Genevet, Patrice
Title: Optimization and uncertainty quantification of gradient index metasurfaces
Language: English
Abstract:

The design of intrinsically flat two-dimensional optical components, i.e., metasurfaces, generally requires an extensive parameter search to target the appropriate scattering properties of their constituting building blocks. Such design methodologies neglect important near-field interaction effects, playing an essential role in limiting the device performance. Optimization of transmission, phase-addressing and broadband performances of metasurfaces require new numerical tools. Additionally, uncertainties and systematic fabrication errors should be analysed. These estimations, of critical importance in the case of large production of metaoptics components, are useful to further project their deployment in industrial applications. Here, we report on a computational methodology to optimize metasurface designs. We complement this computational methodology by quantifying the impact of fabrication uncertainties on the experimentally characterized components. This analysis provides general perspectives on the overall metaoptics performances, giving an idea of the expected average behavior of a large number of devices.

Journal or Publication Title: Optical Materials Express
Volume: 9
Number: 2
Publisher: OSA
Uncontrolled Keywords: Diffraction efficiency; Electron beam lithography; High numerical aperture optics; Material properties; Optical components; Optical elements
Divisions: 18 Department of Electrical Engineering and Information Technology
18 Department of Electrical Engineering and Information Technology > Institute for Accelerator Science and Electromagnetic Fields
Exzellenzinitiative
Exzellenzinitiative > Graduate Schools
Exzellenzinitiative > Graduate Schools > Graduate School of Computational Engineering (CE)
Date Deposited: 11 Feb 2019 06:35
DOI: 10.1364/OME.9.000892
Official URL: http://www.osapublishing.org/ome/abstract.cfm?URI=ome-9-2-89...
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