Linxiao Cong, Min Huang, Qisheng Cai. Spectral Resolution Enhancement Based on Two-Dimensional Shear Interference[J]. Laser & Optoelectronics Progress, 2018, 55(4): 043002
- Laser & Optoelectronics Progress
- Vol. 55, Issue 4, 043002 (2018)
Fig. 1. (a) Spectrometer based on 2D shear interference; (b) rotational FPA; (c) conventional FPA
Fig. 2. Relative OPD distribution on the detector
Fig. 3. Laser lines recovery using interferograms of different pixels. (a) θ=3.31°, 320 pixel; (b) θ=5°, 320 pixel; (c) θ=10°, 765 pixel
Fig. 4. Irradiance distribution of a single line
Fig. 5. Irradiance distribution of oblique stitching
Fig. 6. Interferogram of 320 pixel and 768 pixel after apodization
Fig. 7. Absorption spectra of carnauba wax recovered with different sampling points and reference input specrum
Fig. 8. Interferogram detected by CCD after rotating 18.435°
Fig. 9. Interferogram and spectrum detecting inclined to the detecting direction. (a) Simulation result; (b) stitching sampling model
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