%0 Journal Article
%T Analysis of Optical Path Difference of a Ray Passing through FTIR<br>光线通过傅里叶变换红外光谱仪的光程差分析
%A LIAO La-mei
%A HE Jian
%A ZHANG Qing-guo
%A <br>廖腊梅
%A 贺健
%A 张庆国
%J 红外
%D 2011
%I 
%X To study the optical path difference of a ray passing through a Fourier Transform infrared spectroscopy (FTIR), the symmetric analysis and geometrical optics methods are used to analyze the optical path expression when the ray is passing through one to three plates and a general optical path expression when a ray is passing through arbitrary plates is derived. On the basis of above analysis, the accurate expression of the optical path difference reduced by two arms of a Michelson interferometer with respect to the incident angle is analyzed. Finally, the condition for field widening is given. This research is of great significance to the design of a wide field FTIR.
%K FITR
%K optical path difference
%K Michelson interferometer
%K field widening<br>傅里叶变换红外光谱仪
%K 光程差
%K 迈克耳逊干涉仪
%K 广角
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=1319827C0C74AAE8D654BEA21B7F54D3&jid=3723000AE493FCE650601982177048B1&aid=04FCE1B6249A2C020E465B9B4266D625&yid=9377ED8094509821&vid=9971A5E270697F23&iid=59906B3B2830C2C5&sid=F3583C8E78166B9E&eid=7801E6FC5AE9020C&journal_id=1672-8785&journal_name=红外&referenced_num=0&reference_num=0