Spatial filter realized by dielectrice waveguides

Ignas Lukošiūnas; Darius Gailevicius; Kestutis Staliunas

doi:10.1117/12.2621216

24 May 2022 Spatial filter realized by dielectrice waveguides

Ignas Lukošiūnas, Darius Gailevicius, Kestutis Staliunas

Proceedings Volume 12131, Nanophotonics IX; 121310C (2022) https://doi.org/10.1117/12.2621216
Event: SPIE Photonics Europe, 2022, Strasbourg, France

Abstract

In this work, we introduce a spatial filtering mechanism that can be effectively utilized by photonic crystals. The phenomenon utterly expressed here is Rayleigh-Wood’s anomaly. Such a mechanism is realized and optimized via RCWA (Rigorous Coupled Wave Analysis) together with a global optimization algorithm for both s and p polarized inputs. The calculated transmission and reflection spectra of such mechanisms show that the Rayleigh anomaly provides the necessary sharp transmission profile near the critical wavelength from which the diffraction can occur.

Citation Download Citation

Ignas Lukošiūnas, Darius Gailevicius, and Kestutis Staliunas "Spatial filter realized by dielectrice waveguides", Proc. SPIE 12131, Nanophotonics IX, 121310C (24 May 2022); https://doi.org/10.1117/12.2621216

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