title: Large field-of-view Fourier transform imaging spectrometer using dual-channel stitching.
abstract: A dual-channel lateral shearing beam splitter was used in a Fourier transform imaging spectrometer, forming a dual-channel imaging spectrometer, to investigate the usability of this technique for large field-of-view (FOV) spectral detection. The large FOV obtained by stitching together the different channels' individual FOVs greatly improved the spectral detection efficiency for large-area targets. This report describes the principle of the dual-rectangle lateral shearing beam splitter and the analysis of the lateral shearing distance, FOV, modulation, and method of dual-channel stitching. Large-FOV spectral images of a scene were acquired experimentally at visible wavelengths, confirming the effectiveness of this technique.
authors.forename: Chengmiao
authors.initials: C
authors.lastname: Liu
authors.forename: Jianxin
authors.initials: J
authors.lastname: Li
authors.forename: Rihong
authors.initials: R
authors.lastname: Zhu
authors.forename: Xiangqun
authors.initials: X
authors.lastname: Cui