Spectral emission tailoring using aluminum-based hybrid gratings

Romil Audhkhasi; Michelle L. Povinelli

doi:10.1117/12.2576933

5 March 2021 Spectral emission tailoring using aluminum-based hybrid gratings

Proceedings Volume 11694, Photonic and Phononic Properties of Engineered Nanostructures XI; 116940U (2021) https://doi.org/10.1117/12.2576933
Event: SPIE OPTO, 2021, Online Only

Abstract

We propose a strategy for designing infrared absorbers with predefined spectral response using aluminum gratings as building blocks. We begin by defining 3 target spectra with resonances in the 7 – 15 micron wavelength range. Using FDTD simulations and interpolation, we create a reference library of aluminum gratings to investigate the relationship between their structural parameters and spectral properties. Next, we develop a search algorithm to find gratings from this library corresponding to resonances in the target spectra. Finally, we present an approach for designing hybrid structures from these gratings to generate each of the 3 target spectra.

Conference Presentation

Citation Download Citation

Romil Audhkhasi and Michelle L. Povinelli "Spectral emission tailoring using aluminum-based hybrid gratings", Proc. SPIE 11694, Photonic and Phononic Properties of Engineered Nanostructures XI, 116940U (5 March 2021); https://doi.org/10.1117/12.2576933

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