Oka K, Kato T
Opt Lett. 1999 Nov 1;24(21):1475-7. doi: 10.1364/ol.24.001475.
We describe a novel method for the spectroscopic measurement of the state of polarization (SOP) of light. A pair of thick birefringent retarders is incorporated into the spectroscopic polarimeter, so the generated channeled spectrum is composed of three quasi-cosinusoidal components carrying the information about the SOP of the light that is being measured. Fourier inversion of the channeled spectrum provides significant parameters for determination of the spectrally resolved Stokes parameters of light. No mechanically movable components for polarization control or active devices for polarization modulation are used, and all the Stokes parameters can be determined at once from only the single spectrum. The effectiveness of this method is demonstrated by the generation of elliptically polarized light whose SOP varies with wave number.
我们描述了一种用于光的偏振态（SOP）光谱测量的新方法。在光谱偏振计中加入一对厚双折射延迟器，因此产生的通道光谱由三个携带被测光SOP信息的准余弦分量组成。通道光谱的傅里叶反演为确定光的光谱分辨斯托克斯参数提供了重要参数。该方法不使用用于偏振控制的机械可移动部件或用于偏振调制的有源器件，并且所有斯托克斯参数都可以仅从单光谱中一次性确定。通过产生SOP随波数变化的椭圆偏振光证明了该方法的有效性。
