A coma-free super-high resolution optical spectrometer using 44 high dispersion sub-gratings

Hua Tian Tu, An Qing Jiang, Jian Ke Chen, Wei Jie Lu, Kai Yan Zang, Hao Qi Tang, Osamu Yoshie, Xiao Dong Xiang, Young Pak Lee, Hai Bin Zhao, Yu Xiang Zheng, Song You Wang, Junpeng Guo, Rong Jun Zhang, Jing Li, Yue Mei Yang, W. D. Lynch, Liang Yao Chen

研究成果: Article査読

抄録

Unlike the single grating Czerny–Turner configuration spectrometers, a super-high spectral resolution optical spectrometer with zero coma aberration is first experimentally demonstrated by using a compound integrated diffraction grating module consisting of 44 high dispersion sub-gratings and a two-dimensional backside-illuminated charge-coupled device array photodetector. The demonstrated super-high resolution spectrometer gives 0.005 nm (5 pm) spectral resolution in ultra-violet range and 0.01 nm spectral resolution in the visible range, as well as a uniform efficiency of diffraction in a broad 200 nm to 1000 nm wavelength region. Our new zero-off-axis spectrometer configuration has the unique merit that enables it to be used for a wide range of spectral sensing and measurement applications.

本文言語English
論文番号1093
ジャーナルScientific reports
11
1
DOI
出版ステータスPublished - 2021 12

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