激光技术2012，Vol.36Issue(4)：565-567,3.DOI:10.3969/j.issn.1001-3806.2012.04.033
高精度菱体型消色差延迟器的双波长设计
Dual-wavelength design of high precision rhomb-type achromatic retarders
摘要
Abstract
In order Id improve the precision of rhomb-type achromatic retaiders, according to the optical refraction rule and based on that the sum of the angle of total reflection θ and the reflection angle r is constant, dual-wavelength design was analyzed for two different wavelength beams incident on the retarder. Since the delay errors were the positive and negative, retardation was 90° at two wavelengths in the whole region of spectrum. Simultaneously, achromatic precision of the A/4 retarder was enhanced greatly after optimum design for two wavelengths. The maximal delay error was smaller than 0. 02° for 3 λ/4 retarder designed with LaK2 glass within the range of 360nm ~ 1160nm. Compared with other two designing methods, the new designed retarder not only simplifies the designing theory, but also has higher achromatic precision, and the results are helpful to the design of high precision rhomb-lype achromatic retarders.关键词
光学器件/高精度/折射定律/消色差Key words
optical devices/high precision/refraction rule/achromatism分类
数理科学引用本文复制引用
李国良..高精度菱体型消色差延迟器的双波长设计[J].激光技术,2012,36(4):565-567,3.基金项目
兴义民族师范学院科学研究基金资助项目(11XYYZ05) （11XYYZ05）
