Micro-polarization modulation array for achieving full-polarization imaging

Abstract

The invention discloses a micro-polarization modulation array for achieving full-polarization imaging. The micro-polarization modulation array for achieving the full-polarization imaging is composed of a micro-phase delayer array and a polarizing film, wherein the micro-phase delayer array is composed of a first crystal grating and a second crystal grating which are adhered, the directions of trunkings of the first crystal grating and the second crystal grating are mutually perpendicular, the second crystal grating is adhered with the polarizing film, and a through optical axis of the polarizing film and a fast axis of the first crystal grating are parallel. The micro-polarization modulation array for achieving the full-polarization imaging is used for an interference imaging spectrometer to lead in polarization information, easy and convenient to use, a polarization is not required, a theoretic aliasing phenomenon does not exist in interfering information which corresponds to polarization states, and spectral resolution and accuracy of restoring spectrums of an interference kind imaging spectrum polarization technique are improved.

Description

technical field [0001] The invention belongs to the field of optical detection target devices, and in particular relates to a micro-polarization modulation array for realizing full-polarization imaging, which can obtain full Stokes polarization information, spectrum information and two-dimensional image information of a target when applied to an interference imaging spectrometer. Background technique [0002] In the process of target detection, the surface state, physical and chemical properties of the target can be retrieved from the spectral and polarization information of the object, and even the background noise can be effectively eliminated to enhance the visibility of the object. Since the spectral and polarized radiation characteristics of the target have the advantage of clearly reflecting the characteristics of the target, the imaging detection technology that fuses spectral and polarization information can effectively use the complementarity of the two, and signific...

AI Technical Summary

Problems solved by technology

However, when detecting narrow-band target spectra, using multi-channel interference imaging spectroscopy technology, there may be serious aliasing between the interference information corresponding to each polarization state, which will affect the accuracy of the restored spectrum

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