An inverse design approach for broadband polarization splitting

Gregory Roberts; Conner Ballew; Tianzhe Zheng; Andrei Faraon

doi:10.1117/12.2579093

5 March 2021 An inverse design approach for broadband polarization splitting

Gregory Roberts, Conner Ballew, Tianzhe Zheng, Andrei Faraon

Proceedings Volume 11694, Photonic and Phononic Properties of Engineered Nanostructures XI; 116940R (2021) https://doi.org/10.1117/12.2579093
Event: SPIE OPTO, 2021, Online Only

Abstract

Inverse design has opened up the possibility of achieving high photonic device performances over broad spectral ranges. Recently, we have applied this technique to broadband polarization splitting. By sorting an input polarization state of light into four analyzer directions, the projection onto each of which is focused to a different detector element, we design a device that can reconstruct the polarization state. This concept has been shown with metasurfaces, but over a limited bandwidth. We show simulation results for a wide bandwidth device that efficiently sorts along four polarization directions, achieving high transmission and large contrast between the different states.

Conference Presentation

Citation Download Citation

Gregory Roberts, Conner Ballew, Tianzhe Zheng, and Andrei Faraon "An inverse design approach for broadband polarization splitting", Proc. SPIE 11694, Photonic and Phononic Properties of Engineered Nanostructures XI, 116940R (5 March 2021); https://doi.org/10.1117/12.2579093

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