强激光与粒子束2013，Vol.25Issue(2)：287-291,5.DOI:10.3788/HPLPB20132502.0287
任意球面元件的超高反射率测量方法
Super-high reflectivity measurement of arbitrary spheric optical element
摘要
Abstract
In order to measure super-high reflectivity of any sphere optical element at different angles, such as 0°, 10°, 15°, 30° and so on, two optical resonator structures are put forward: one is straight-cavity, and the other is folded-cavity. Physical length of the ring-down cavity is defined based on the concept of light path. These two kinds of measurement methods are analyzed in detail. When spherical surface is put in the ring-down cavity, it brings length misalignment of the ring-down cavity. This varied length is derived based on the beam transmission and transformation law, which can be used as length adjustment guidance of the ring-down cavity for reflectivity measurement. In addition, according to reflectivity measuring principle of cavity ring-down, mathematical expressions of reflectivity measuring for spherical components are deduced at different angles, which are discussed separately. The results expand the super-high reflectivity measurement scope of optical elements for the cavity ring-down method.关键词
光学测量/反射率/光腔衰荡/球面元件/物理腔长Key words
optical measurement/ reflectivity/ cavity ring-down/ spheric optical element/ physical cavity length分类
信息技术与安全科学引用本文复制引用
易亨瑜,彭勇,黄祖鑫,陈兴无..任意球面元件的超高反射率测量方法[J].强激光与粒子束,2013,25(2):287-291,5.基金项目
国军标课题(GJB-10ZW015) （GJB-10ZW015）
