Tunable optical filter using phase change materials for smart IR night vision applications

Tunable optical filter using phase change materials for smart IR night vision applications

In this paper we present a tunable filter using Ge 2 Sb 2 Se 4 Te 1 (GSST) phase change material. The design principle of the filter is based on a metal-insulator-metal (MIM) cavity operating in the reflection mode. This is intended for night vision applications that utilize 850nm as the illuminatio...

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Veröffentlicht in:Optics express 2021-10, Vol.29 (21), p.33795-33803
Hauptverfasser: Heenkenda, Remona, Hirakawa, Keigo, Sarangan, Andrew
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Hirakawa, Keigo
Sarangan, Andrew
description In this paper we present a tunable filter using Ge 2 Sb 2 Se 4 Te 1 (GSST) phase change material. The design principle of the filter is based on a metal-insulator-metal (MIM) cavity operating in the reflection mode. This is intended for night vision applications that utilize 850nm as the illumination source. The filter allows us to selectively reject the 850nm band in one state. This is illustrated through several daytime and nighttime imaging applications.
doi_str_mv 10.1364/OE.440299
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title Tunable optical filter using phase change materials for smart IR night vision applications
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