干涉成像光谱仪光通量的计算与分析

白鑫;张淳民;景春元;关小伟;曹芬;李艳娜;谢林利

【期刊名称】《物理学报》

【年(卷),期】2011(060)007

【摘要】论述了干涉成像光谱技术的工作原理，采用光线追迹的方法对基于Sagnac棱镜和Savart偏光镜的干涉仪中的光线传播规律进行了分析，推导出了无狭缝式干涉成像光谱仪光通量的精确理论计算公式，并对干涉成像光谱仪中具有代表性的Savart型偏振干涉成像光谱仪光通量和改型Sagnac成像光谱仪光通量进行了分析比较．通过计算机模拟给出了系统光通量随入射角和波长变化的关系曲线．该研究对干涉成像光谱仪的研究和工程化研制具有重要的指导意义．%The principle of interference imaging spectrometer is introduced. In this paper, ray tracing method is employed to present the rules of the prism Sagnac and the polariscope Savart in interference imaging spectrometer. The explicit formulae for the optical feux are deduced. The representative solutions such as the optical fluxes of Savart and Sagnac are both analyzed and compared. By performing the computer simulation, some important curves are obtained for the variations of optical flux with incident angle and wavelength. The work in this paper provides a theoretical guidance for the study of polarization interference imaging spectrometer.

【总页数】8页(173-180)

【关键词】干涉成像光谱仪;光通量;透射比