Static interference imaging polarizer and method for acquiring polarization information of target

Abstract

The invention relates to a static interference imaging polarizer which comprises a front telescope system, a modulation delayer, a polarized interferometer, an optical collecting lens, a planar array detector and a computer processing system which are arranged in the direction of incident light in sequence, wherein the modulation delayer consists of a first delayer and a second delayer, and the polarized interferometer consists of a polarizer, a Savart polariscope and an analyzer. The static interference imaging polarizer has the advantage of detecting imaging information, spectral information and polarization information at the same time.

Description

technical field [0001] The invention belongs to the field of optics, and relates to a structure of a static interference imaging polarimeter and a method for obtaining polarization information of a target by using the static interference imaging polarimeter. Background technique [0002] In recent decades, with the rapid development of information science and space remote sensing technology, a new method of multi-faceted detection of targets using polarization technology has emerged. Light wave is a kind of transverse electromagnetic wave, its electric vector is perpendicular to the propagation direction of light, and the asymmetry of the electric field vibration direction relative to the light propagation direction is called polarization. When light waves are reflected, scattered, transmitted and absorbed in a medium or on an interface, the outgoing light will show characteristic polarization determined by the nature of the target itself, and different objects or different ...

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Problems solved by technology

This method without mechanical rotation is mainly suitable for pulsed light source or transient polarization state measurement, but the system has too many components and complex and not compact structure, which is very unfavorable for applications in aerospace, aviation and remote sensing detection

[0005] K.Oka once proposed a channel spectrum detection method, which has the ability to detect spectrum and polarization information in real time, but cannot obtain image information

Our research group once proposed a self-developed new type of polarization interference imaging spectrometer based on Savart polarizer, which can obtain the spectral and image information of the target at the same time, but cannot obtain the polarization information.

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