Reconfigurable infrared spectral imaging with phase change materials

Jeong Sun Moon, Hwa Chang Seo, K. Kay Son, Eilam Yalon, Kangmu Lee, Elias Flores, Geovanni Candia, Eric Pop

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

A spatial light modulator (SLM) is a key device that enables a coded aperture imaging technique to extract spectral signature for remote detection and identification without platform motion. The SLMs offer a way to carry out spectral imaging with reconfigurability, which allows signature detection against a spectrally cluttered background. Liquidcrystal display (LCD) arrays and digital micro-mirror devices (DMDs) are used to implement the spatial light modulators, and there are shortcomings in infrared (IR) applications. Here, we report on a new solid-state SLM modulator device operating in the infrared range with SbTe-based phase change material. The SLM leverages a dramatic change (<2) in refractive index of SbTe phase change material within most of the IR bands, depending on their phase (amorphous versus crystalline).

Original languageEnglish
Title of host publicationMicro- and Nanotechnology Sensors, Systems, and Applications XI
EditorsThomas George, M. Saif Islam
ISBN (Electronic)9781510626294
DOIs
StatePublished - 2019
Externally publishedYes
Event2019 Micro- and Nanotechnology (MNT) Sensors, Systems, and Applications XI Conference - Baltimore, United States
Duration: 14 Apr 201918 Apr 2019

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume10982

Conference

Conference2019 Micro- and Nanotechnology (MNT) Sensors, Systems, and Applications XI Conference
Country/TerritoryUnited States
CityBaltimore
Period14/04/1918/04/19

Keywords

  • Imaging
  • Infrared
  • Phase change materials
  • Spatial light modulator

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Applied Mathematics
  • Electrical and Electronic Engineering
  • Computer Science Applications

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