Chaobin Zeng, Bin Liu, Zhengde Xia, Yuzhang Shi, Yan Han. Optimal Design of Spectroscopic Structure Based on Prism-Grating Combination[J]. Acta Optica Sinica, 2020, 40(21): 2105001
- Acta Optica Sinica
- Vol. 40, Issue 21, 2105001 (2020)
Fig. 1. Prism dispersion diagram
Fig. 2. Diagram of different incident angles versus dispersion of prism
Fig. 3. 600 line/mm dispersion of prism at different incident angles
Fig. 4. Schematic diagram of dispersion for combination of prism and grating
Fig. 5. PG spectroscopic system design flow chart
Fig. 6. Spectral dispersion ability of different linear gratings corresponding to different grating incident angles
Fig. 7. Imaging system
Fig. 8. Spot diagram
Fig. 9. Resolution simulation verification results. (a) Spectral distribution of 400 nm and 402 nm; (b) spectral distribution of 700 nm and 702.5 nm; (c) spectral distribution of 1000 nm and 1002 nm
Fig. 10. Comparison of spectral dispersion distribution. (a) In Ref. [9]; (b) in Ref. [29]; (c) ours
Fig. 11. Experimental test environment
Fig. 12. Experiment results of sresolution. (a) Near 420 nm; (b) near 600 nm; (c) near 780 nm
Fig. 13. Experiment results of spectral distribution
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Table 1. Design index parameters of imaging spectrometer
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Table 2. Resolution comparison results
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