Acta Optica Sinica, Volume. 41, Issue 11, 1122001(2021)
Spectroscopic Imaging System in Mid-Wave Infrared Imaging Spectrometer on Geostationary Orbit
Fig. 1. Schematic of detector splicing of single spectroscopic imaging spectrometer
Fig. 2. Schematic of spectroscopic imaging spectrometer splicing
Fig. 3. Schematic of optical path of the mid-wave infrared spectroscopic imaging spectrometer. (a) Side view; (b) axial view
Fig. 4. Splicing schematic of spectroscopic imaging spectrometer
Fig. 5. Optical-mechanical model of the mid-wave infrared spectroscopic imaging spectrometer
Fig. 6. Center wavelength MTF curves at room temperature and cooling temperature. (a) Center wavelength MTF curve under 20 ℃; (b) center wavelength MTF curve under 160 K
Fig. 7. Slit and its microscope test chart
Fig. 8. Self-developed convex blazed diffraction grating and its groove shape test chart
Fig. 9. Grating diffraction efficiency curve
Fig. 10. Spectral performance test setup of prototype
Fig. 11. Advanced sub-spectrum lines at 830 nm
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Jiacheng Zhu, Weiqi Lu, Zhicheng Zhao, Xinhua Chen, Weimin Shen. Spectroscopic Imaging System in Mid-Wave Infrared Imaging Spectrometer on Geostationary Orbit[J]. Acta Optica Sinica, 2021, 41(11): 1122001
Category: Optical Design and Fabrication
Received: Nov. 30, 2020
Accepted: Dec. 30, 2020
Published Online: Jun. 7, 2021
The Author Email: Chen Xinhua (xinhua_chen@suda.edu.cn)