Long focal-length planar focusing reflectors based on high-contrast gratings

Paulina Komar; Marcin Gębski; Maciej Dems; Tomasz Czyszanowski; Michal Wasiak

doi:10.1117/12.2511028

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4 March 2019 Long focal-length planar focusing reflectors based on high-contrast gratings

Paulina Komar, Marcin Gębski, Maciej Dems, Tomasz Czyszanowski, Michal Wasiak

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Proceedings Volume 10928, High Contrast Metastructures VIII; 109281F (2019) https://doi.org/10.1117/12.2511028
Event: SPIE OPTO, 2019, San Francisco, California, United States

Abstract

A physical structure constructed from stripes of a material with high refractive index that are separated with a low refractive index medium is called a high contrast grating (HCG). Here we present the simulations of long focal-length GaAs-based planar focusing monolithic HCG reflectors designed for 980 nm. We discuss how the focal spot size depends on the reflector size and how it is possible to improve the maximum value of the electric field intensity distribution.

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Paulina Komar, Marcin Gębski, Maciej Dems, Tomasz Czyszanowski, and Michal Wasiak "Long focal-length planar focusing reflectors based on high-contrast gratings", Proc. SPIE 10928, High Contrast Metastructures VIII, 109281F (4 March 2019); https://doi.org/10.1117/12.2511028

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