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提出一种实现偏振差分干涉成像的新方法。该方法利用微透镜阵列和渥拉斯顿棱镜,实现一次成像就能获取目标的平行和垂直偏振分量的光谱图像,且具有无机械运动部件和共光路的优点。通过理论分析和模拟仿真,获取复色光以及632.8nm的单色光的正交偏振分量的光谱图像。仿真分析表明,该方法能够有效地同时获得目标的差分偏振光谱图,有利于实现实时探测目标的偏振光谱信息。
A new method of polarization differential interferometry imaging is proposed. The method utilizes a micro-lens array and a Wollaston prism to obtain a spectral image of the target’s parallel and vertical polarization components in one imaging, and has the advantages of no mechanical moving parts and a common optical path. Spectral images of the orthogonally polarized components of the complex color light and the monochromatic light of 632.8 nm are obtained through theoretical analysis and simulation. Simulation results show that this method can effectively obtain the target’s differential polarization spectrum at the same time, which is helpful to realize the real-time detection of the target’s polarization spectrum information.