Spectrum modulation research of a thin-film filter with visible and near infrared dual band-pass channel
Received:January 19, 2020  Revised:September 21, 2020  download
Citation:
Hits: 88
Download times: 75
Author NameAffiliationE-mail
CHEN Gang Shanghai Institute of Technical Physics Chinese Academy of Sciences Shanghai200083 China
University of Chinese Academy of Sciences Beijing 100049 China 
gangchen@mail.sitp.ac.cn 
LIU Ding-Quan Shanghai Institute of Technical Physics Chinese Academy of Sciences Shanghai200083 China
School of Physical Science and Technology Shanghai Tech University Shanghai200031 China
University of Chinese Academy of Sciences Beijing 100049 China 
dqliu@mail.sitp.ac.cn 
MA Chong Shanghai Institute of Technical Physics Chinese Academy of Sciences Shanghai200083 China  
WANG Kai-Xuan Shanghai Institute of Technical Physics Chinese Academy of Sciences Shanghai200083 China
University of Chinese Academy of Sciences Beijing 100049 China 
 
ZHANG Li Shanghai Institute of Technical Physics Chinese Academy of Sciences Shanghai200083 China  
GAO Ling-Shan Shanghai Institute of Technical Physics Chinese Academy of Sciences Shanghai200083 China
University of Chinese Academy of Sciences Beijing 100049 China 
 
Abstract:A remote sensing camera needs a thin-film filter with visible (wavelength 500~720 nm) and near infrared (wavelength (1064±1) nm) dual band-pass spectrum channels at any same geometric position. The spectrum and transmission of the two channels need was modulated accurately. JGS-1 fused quartz was used as the substrate, Ta2O5 and SiO2 thin film was used as high (H) and low (L) reflective index layers respectively. 52 and 88 layers deposited on the two surfaces of substrate by dual ion beam sputtering method. The average transmission of 500~720 nm band reaches 92%, and the peak transmission of (1 064±1) nm band controlled in(26±1)% range.
View Full Text  HTML  View/Add Comment  Download reader

Copyright:《Journal of Infrared And Millimeter Waves》