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Super-Resolution Multicomponent Joint-Interferometric Fabry–Perot-Based Technique

Authors :
Yu Zhang
Qunbo Lv
Yinhui Tang
Peidong He
Baoyv Zhu
Xuefu Sui
Yuanbo Yang
Yang Bai
Yangyang Liu
Source :
Applied Sciences; Volume 13; Issue 2; Pages: 1012
Publication Year :
2023
Publisher :
MDPI AG, 2023.

Abstract

We propose a new spectral super-resolution technique combined with a Fabry–Perot interferometer (FPI) and an interferometric hyperspectral imager. To overcome the limitation of the maximal optical path difference (OPD) on the spectral resolution, the object spectrum is periodically modulated based on the FPI, and an optical Fourier transform of the modulated spectrum information is performed using a double-beam interferometer to obtain an interferogram. Drawing on the concept of nonlinear structured light microscopy, the displacement of the high-frequency interference information in the interferogram after adding the FPI is analyzed to restore the high-frequency interference information and improve the spectral resolution. The optical system has a compact structure with little impact on complexity, spectral range, or luminous flux. Our simulation results show that this method can realize multicomponent joint-interference imaging to obtain spectral super-resolution information. The effects of the FPI’s reflectance and interval are analyzed, and the reflectance needs to be within 20~80% and the interval must be as close as possible to the maximum optical range of the interferometer. Compared with previous, related innovations, this innovation has the advantages of higher system stability, higher data utilization, and better suitability for interferometric imaging spectrometers.

Details

ISSN :
20763417
Volume :
13
Database :
OpenAIRE
Journal :
Applied Sciences
Accession number :
edsair.doi.dedup.....7496684dba011885366eb378c6826557
Full Text :
https://doi.org/10.3390/app13021012