Lei Zhang, Bo Li, Guochao Gu, Xiaoxu Wang, Hanshuang Li. Miniaturized Hyperspectral Resolution Imaging Spectrometer of AOTF and Echelle Grating Combination[J]. Acta Optica Sinica, 2023, 43(19): 1922001
- Acta Optica Sinica
- Vol. 43, Issue 19, 1922001 (2023)
Fig. 1. Schematic of AOTF
Fig. 2. Main interface of echelle grating
Fig. 3. Structure of the telescopic imaging system. (a) Two-dimensional view; (b) three-dimensional view
Fig. 4. MTF curves of telescopic system of each band. (a) 2320 nm; (b) 3285 nm; (c) 4250 nm
Fig. 5. RMS point diagrams of telescopic system of each band. (a) 2320 nm; (b) 3285 nm; (c) 4250 nm
Fig. 6. Structure of echelle spectrograph
Fig. 7. MTF curves of echelle spectrograph of each band. (a) 2320 nm; (b) 3285 nm; (c) 4250 nm
Fig. 8. RMS point diagrams of echelle spectrograph of each band. (a) 2320 nm; (b) 3285 nm; (c) 4250 nm
Fig. 9. Overall structure of imaging spectrometer
Fig. 10. MTF curves of overall structure of each band. (a) 2320 nm; (b) 3285 nm; (c) 4250 nm
Fig. 11. RMS point diagrams of overall structure of each band. (a) 2320 nm; (b) 3285 nm; (c) 4250 nm
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Table 1. Main technical indices of designed spectrometer
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Table 2. Parameters of the AOTF
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Table 3. Surface parameters of aspheric mirror
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Table 4. Number of orders of echelle grating
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