Resolution enhancement by combination of subpixel and deconvolution in miniature spectrometers.
The resolution of a miniature spectrometer with a multichannel detector is limited by its throughput. A subpixel deconvolution method is proposed to enhance resolution without physically reducing the throughput. The method introduces subpixel reconstruction to overcome undersampling during deconvolution processing. The experimental result has shown a 36.6% reduction in FWHM of spectral lines, indicating the effectiveness of the method.
Xu
Li
L
State Key Laboratory of Precision Measurement Technology and Instruments, Tsinghua University, Beijing, China. xuli00@mails.tsinghua.edu.cn
Yang
Huaidong
H
Chen
Kexin
K
Tan
Qiaofeng
Q
He
Qingsheng
Q
Jin
Guofan
G