Chalcogenide phase-change material-based, ultrathin, all-dielectric tunable mid-infrared metamaterial perfect absorber

Roy Avrahamy; Amiel A. Ishaaya; Mark Auslender

doi:10.1364/CLEO_QELS.2022.FTh4D.8

Conference on Lasers and Electro-Optics
Technical Digest Series (Optica Publishing Group, 2022),
paper FTh4D.8
•https://doi.org/10.1364/CLEO_QELS.2022.FTh4D.8

Chalcogenide phase-change material-based, ultrathin, all-dielectric tunable mid-infrared metamaterial perfect absorber

Roy Avrahamy, Amiel A. Ishaaya, and Mark Auslender

CLEO: QELS_Fundamental Science 2022

San Jose, California United States
15–20 May 2022
ISBN: 978-1-957171-05-0

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R. Avrahamy, A. A. Ishaaya, and M. Auslender, "Chalcogenide phase-change material-based, ultrathin, all-dielectric tunable mid-infrared metamaterial perfect absorber," in Conference on Lasers and Electro-Optics, Technical Digest Series (Optica Publishing Group, 2022), paper FTh4D.8.

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Abstract

Ultrathin, all-dielectric, metamaterial design based on an asymmetrical optical micro-/nanocavity, enclosing a 10 nm thick Ge₂Sb₂Te₅ photoabsorber film, is inversely optimized for perfect tunable absorption in the mid-infrared. The absorption can be actively/geometrically pre-/post-fabrication spectrally tuned.

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