Photonic crystal MEMS emitter for chemical gas sensing

Nanxi Li, Qin Chao, Zhonghua Gu, Shiwei Song, Yanyan Zhou, Shaonan Zheng, Linfang Xu, Yun Da Chua, Qingxin Zhang, Hong Cai, Daohua Zhang, Qi Jie Wang, Lennon Lee

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

4 Citations (Scopus)

Abstract

A thermal emitter fabricated on complementary metal-oxide-semiconductor (CMOS)-compatible facilities is a key component for low-cost mid-infrared gas sensing. While conventional thermal emitters have broad spectrum and wide emission angle, which limit the sensing performance. In this work, a microelectromechanical system (MEMS)-based thermal emitter with photonic crystal has been designed and fabricated using CMOS-compatible technology. The photonic crystal enables the emission wavelength selectivity within mid-infrared regime. By engineering photonic crystal dimension, the emission enhancement wavelength can be matched to the fingerprint wavelength of chemical gas for efficient chemical gas sensing purpose.

Original languageEnglish
Title of host publicationMOEMS and Miniaturized Systems XX
EditorsHans Zappe, Wibool Piyawattanametha, Yong-Hwa Park
PublisherSPIE
ISBN (Electronic)9781510642294
DOIs
Publication statusPublished - Mar 2021
Externally publishedYes
EventMOEMS and Miniaturized Systems XX 2021 - Virtual, Online, United States
Duration: 6 Mar 202111 Mar 2021

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume11697
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferenceMOEMS and Miniaturized Systems XX 2021
Country/TerritoryUnited States
CityVirtual, Online
Period6/03/2111/03/21

Keywords

  • chemical sensor
  • MEMS
  • photonic crystal
  • thermal emitter

ASJC Scopus subject areas

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

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