Design of vanadium-dioxide-based resonant structures for tunable optical response

Muhammad Fayyaz Kashif; Tiziana Stomeo; Maria Antonietta Vincenti; Massimo De Vittorio; Massimo De Vittorio; Michael Scalora; Antonella D’Orazio; Domenico de Ceglia; Marco Grande

doi:10.1364/OL.455457

Optics Letters
Vol. 47,
Issue 9,
pp. 2286-2289
(2022)
•https://doi.org/10.1364/OL.455457

Design of vanadium-dioxide-based resonant structures for tunable optical response

Muhammad Fayyaz Kashif, Tiziana Stomeo, Maria Antonietta Vincenti, Massimo De Vittorio, Michael Scalora, Antonella D’Orazio, Domenico de Ceglia, and Marco Grande

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Muhammad Fayyaz Kashif, Tiziana Stomeo, Maria Antonietta Vincenti, Massimo De Vittorio, Michael Scalora, Antonella D’Orazio, Domenico de Ceglia, and Marco Grande, "Design of vanadium-dioxide-based resonant structures for tunable optical response," Opt. Lett. 47, 2286-2289 (2022)

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Abstract

Phase change materials are suitable for tunable photonic devices where the optical response can be altered under external stimuli, such as heat, an electrical or an optical signal. In this scenario, we performed numerical simulations to study the optical properties of a flat unpatterned resonant structure and a grating, both coated with a thin film of vanadium dioxide (VO₂). Our results suggest that it is possible to modulate broadband and narrowband reflectance spectra of the resonant structures in the visible to near-infrared range by more than 40 % when the VO₂ undergoes an insulator-to-metal phase transition. Resonant devices with a tunable spectral response may find application in sensors, filters, absorbers, and detectors.

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