Study on the impact of high reflectance designs for mid-infrared MEMS Fabry-Perot interferometers

Shaoyu Zhao*, Fan Wang, Zhaochuan Wu, Sen Zhang, Wenkai Li, Huikai Xie*

*Corresponding author for this work

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

Abstract

The influence of 'high contrast' HR coating composed by Ge and SiO QWOT layers stack and 'low contrast' HR coating composed by Ge and ZnS quasi-QWOT layers stack are designed and applied to tunable FPI simulation. The peak reflectance at the reference wavelength were designed to 95.8%. The reflectance and phase shift on reflection of 'high contrast' HR coating and 'low contrast' HR coating are simulated. The designed coatings are applied to tunable FPI simulation. The free spectral range and center wavelength tuning rate are compared and discussed.

Original languageEnglish
Title of host publicationTenth Symposium on Novel Optoelectronic Detection Technology and Applications
EditorsChen Ping
PublisherSPIE
ISBN (Electronic)9781510688148
DOIs
Publication statusPublished - 2025
Event10th Symposium on Novel Optoelectronic Detection Technology and Applications - Taiyuan, China
Duration: 1 Nov 20243 Nov 2024

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume13511
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

Conference10th Symposium on Novel Optoelectronic Detection Technology and Applications
Country/TerritoryChina
CityTaiyuan
Period1/11/243/11/24

Keywords

  • FPI
  • high reflectance coating
  • mid-infrared
  • phase shift on reflection

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