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Tu HT, Jiang AQ, Chen JK, Lu WJ, Zang KY, Tang HQ, Yoshie O, Xiang XD, Lee YP, Zhao HB, Zheng YX, Wang SY, Guo J, Zhang RJ, Li J, Yang YM, Lynch WD, Chen LY. A coma-free super-high resolution optical spectrometer using 44 high dispersion sub-gratings. Sci Rep 2021; 11:1093. [PMID: 33441851 PMCID: PMC7806747 DOI: 10.1038/s41598-020-80307-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Accepted: 12/18/2020] [Indexed: 01/02/2023] Open
Abstract
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.
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Affiliation(s)
- Hua-Tian Tu
- Department of Optical Science and Engineering, Fudan University, Shanghai, China
| | - An-Qing Jiang
- Department of Optical Science and Engineering, Fudan University, Shanghai, China
- Graduate School of IPS, Waseda University, Fukuoka, Japan
| | - Jian-Ke Chen
- Department of Optical Science and Engineering, Fudan University, Shanghai, China
| | - Wei-Jie Lu
- Department of Optical Science and Engineering, Fudan University, Shanghai, China
| | - Kai-Yan Zang
- Department of Optical Science and Engineering, Fudan University, Shanghai, China
| | - Hao-Qi Tang
- Department of Material Science and Engineering, SUSTC, Shenzhen, China
| | - Osamu Yoshie
- Graduate School of IPS, Waseda University, Fukuoka, Japan
| | - Xiao-Dong Xiang
- Department of Material Science and Engineering, SUSTC, Shenzhen, China
| | - Young-Pak Lee
- Department of Physics, Hanyang University, Seoul, Korea
| | - Hai-Bin Zhao
- Department of Optical Science and Engineering, Fudan University, Shanghai, China
| | - Yu-Xiang Zheng
- Department of Optical Science and Engineering, Fudan University, Shanghai, China
| | - Song-You Wang
- Department of Optical Science and Engineering, Fudan University, Shanghai, China
| | - Junpeng Guo
- Department of Electrical and Computer Engineering, University of Alabama in Huntsville, Huntsville, AL, 35899, USA
| | - Rong-Jun Zhang
- Department of Optical Science and Engineering, Fudan University, Shanghai, China
| | - Jing Li
- Department of Optical Science and Engineering, Fudan University, Shanghai, China
| | - Yue-Mei Yang
- Department of Optical Science and Engineering, Fudan University, Shanghai, China
| | - W D Lynch
- Department of Physics, Iowa State University, Ames, IA, USA
| | - Liang-Yao Chen
- Department of Optical Science and Engineering, Fudan University, Shanghai, China.
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