Ministry of Education Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, School of Science, Xi’an Jiaotong University, Xi’an 710049, China.
Opt Lett. 2012 Sep 1;37(17):3507-9. doi: 10.1364/OL.37.003507.
A static polarization-difference imaging spectrometer is conceptually described and demonstrated through experiment. It consists of a Wollaston prism, a Savart polariscope, a linear analyzer, and a CCD camera. This design improves the existing polarization-difference system by eliminating its moving parts and obtaining the spectral variation of the polarization state, and making the system more compact and robust. After simultaneously acquiring two sequential interference images corresponding to two orthogonal polarization states, the hyperspectral images of the states can be reconstructed, respectively. The use of uniaxial birefringent crystal can widen the detectable spectral region.
静态偏振差分成像光谱仪的概念设计及其实验演示。该系统由渥拉斯顿棱镜、萨伐尔偏光镜、线性分光仪和 CCD 相机组成。该设计通过消除现有偏振差分系统的活动部件，获取偏振态的光谱变化，使系统更加紧凑和稳定。通过同时获取两个对应于两个正交偏振态的连续干涉图像，可以分别重建两个偏振态的高光谱图像。使用单轴双折射晶体可以拓宽可检测的光谱区域。
