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