A three-spectrum method for accurate calibration of bi-plate zero-order retarder  

作　　者：韩志刚 徐治 陈磊 

机构地区：[1]Department of Chemistry and Biochemistry,University of Missouri-St.Louis [2]Center for NanoScience,University of Missouri-St.Louis [3]School of Electronic and Optical Engineering,Nanjing University of Science and Technology

出　　处：《Chinese Optics Letters》2014年第3期31-33,共3页中国光学快报（英文版）

基　　金：the financial support from China Scholarship Council(No.2011684023)

摘　　要：A new spectroscopic method is proposed for the characterization of optical zero-order retarders. It is demonstrated that the retardance as well as the variation of the effective fast axis of a bi-plate zero-order quarter retarder （633 nm） can be obtained with high accuracy in a broadband wavelength range by taking spectra at only three independent angular orientations of the retarder. The calibration results excellently agree with theoretical models, indicating the new method could be used as a simple and reliable way for efficient self-spectral-calibration of optical zero-order retarders.A new spectroscopic method is proposed for the characterization of optical zero-order retarders. It is demonstrated that the retardance as well as the variation of the effective fast axis of a bi-plate zero-order quarter retarder （633 nm） can be obtained with high accuracy in a broadband wavelength range by taking spectra at only three independent angular orientations of the retarder. The calibration results excellently agree with theoretical models, indicating the new method could be used as a simple and reliable way for efficient self-spectral-calibration of optical zero-order retarders.

关 键 词：Spectroscopic analysis 

分 类 号：O433.1[机械工程—光学工程]