Presentation
5 March 2022 Phase-change-material (PCM)-based actively tunable filters for both terrestrial and spaceborne platforms
Author Affiliations +
Proceedings Volume PC12011, High Contrast Metastructures XI; PC1201102 (2022) https://doi.org/10.1117/12.2607826
Event: SPIE OPTO, 2022, San Francisco, California, United States
Abstract
In this work, we introduce actively tunable PCM-FP (Fabry-Perot) and PCM-PNA (Plasmonic Nanohole Array) bandpass filters that possess high-speed tunability (MHz), narrow spectral bandwidth, high-transmissivity, broad tuning range, in an all solid-state design in a wide variety of imaging and spectroscopic applications. We also present the results from a Materials International Space Station Experiment (MISSE-14) in which chalcogenide phase change material (PCM) optical components are exposed and tested in Low Earth Orbit to determine their suitability for space applications. Our samples including Ge2Sb2Te5, Ge2Sb2Se4Te1, Sb2S3 thin-films and PCM-FP were delivered aboard the ISS by Northrop Grumman (NG-15) in Feb. 2021 for 6 months of exposure testing, including: temperature, vacuum, atomic oxygen, UV exposure and solar illumination effects. Our MISSE-14 PCM study will provide valuable information on the limitations and suitability of PCMs in harsh space environments.
Conference Presentation
© (2022) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Hyun Jung Kim, Stephen Borg, William Humphreys, Matthew Julian, Calum Williams, David Bombara, Yifei Zhang, Juejun Hu, and Tian Gu "Phase-change-material (PCM)-based actively tunable filters for both terrestrial and spaceborne platforms", Proc. SPIE PC12011, High Contrast Metastructures XI, PC1201102 (5 March 2022); https://doi.org/10.1117/12.2607826
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KEYWORDS
Tunable filters

Phase shift keying

Mid-IR

Optical filters

Optical components

Solid state electronics

Thermography

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