novel polarization interference imaging spectroscope
A novel principle and scheme of Polarization Interferometer Imaging Spectroscope has been proposed. A wide-field-of-view polarization Interference imaging spectrometer (WPIIS) based on a Savart polariscope, without moving parts, and with a narrow slit has been designed and developed. The primary feature of the WPIIS is the target image as well as the interferogram and polarization information can be obtained at the same time in the spatial domain and are recorded by a two-dimensional CCD camera. The field of view of the WPIIS will be extend 3--5 times as large as a common interference imaging spectrometer, and the throughput will raise 1--2 orders of magnitude. The total optics is as small as 531.1 X 150 X 243mm 3 in size, and 5.5kg in mass, the spectral resolution of the prototype system is 81.38cm -1 between 0.48?m and 0.96?m (?=480nm, ? ?=1.87nm; ?=960nm, ? ?=7.5nm). The WPIIS has advantages of ultra-compact size, wide field of view, high throughput and without any moving parts. The optics system and especially principle is described, and the experimental result of the Interference Imaging spectrum is show.
savart polariscope throughput modulation depth snr