Fang Zhang, Jiaobo Gao, Lanlan Zhang, Jianjun Mi, Shaojun Shou, Anfeng Zhang, Ying Feng, Rui Hou. A method to determine reflectivity of F-P interferometic cavity with variable gap[J]. Infrared and Laser Engineering, 2021, 50(11): 20210099
- Infrared and Laser Engineering
- Vol. 50, Issue 11, 20210099 (2021)
Fig. 1. Variable gap F-P spectral imaging system
Fig. 2. Structure of variable gap F-P interferometer
Fig. 3. Interference intensity of monochromatic light at different pixel location of detector
Fig. 4. Error curves between interference intensity of monochromatic light and standard sine function
Fig. 5. Normalized error at different reflectivity of the interferometric cavity
Fig. 6. Relation curve between reflectivity of interferometric cavity and modulation of interference fringes
Fig. 7. Influence of the reflectivity of interferometric cavity on target function
Fig. 8. Interference pattern for the uniform CO2 laser source from the system
Fig. 9. Interferometric information from the CO2 laser source
Fig. 10. Spectrum curve of the CO2 laser
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