中国光学（中英文）2025，Vol.18Issue(6)：1344-1352,9.DOI:10.37188/CO.2025-0036
经典文献中洛匈棱镜分束角公式问题澄清
Clarification on the beam deviation angle formula of a Rochon prism in classical literatures
摘要
Abstract
During the research and development process of the scientific research project,it was found that the beam deviation angle formula of a Rochon prism in classical optical literatures(for negative crystals)was incorrect.Therefore,an accurate expression for the beam deviation angle of a Rochon prism was derived(distributed for negative and positive crystals),and the problem of design in the optical systems containing a Rochon prism in the scientific research projects was solved.In response to the problem of small angles between the two output beams of light in general a Rochon prism products,the expressions for the deviation angles of a Rochon prism composed of negative and positive crystals,respectively,were analyzed and de-rived.In addition,the deviation angles of a Rochon prism composed of different crystal materials were ana-lyzed and the expression was derived.By calculating and comparing with actual data,it is known that the beam deviation angle of a Rochon prism made of different crystal materials is significantly higher than that of a Rochon prism made of the same crystal material.For applications in the ultraviolet band,a specific design example of a large beam deviation angle for a Rochon prism composed of heterogeneous crystal materials is provided.This type of a Rochon prism is composed of heterogeneous crystal materials,and according to the appropriate crystal arrangement order,a relatively large beam deviation angle can be obtained under the lim-itation of reasonable crystal thickness,which is obviously beneficial for the structural design of the polariza-tion instruments and equipments.关键词
洛匈棱镜/石英晶体/氟化镁晶体/o光/e光Key words
Rochon prism/quartz/MgF2 crystal/o ray/e ray分类
数理科学引用本文复制引用
李东风,李如意,杨春旺,周珺,陆守香..经典文献中洛匈棱镜分束角公式问题澄清[J].中国光学（中英文）,2025,18(6):1344-1352,9.基金项目
公安部科技计划项目(No.2022ZB12)Supported by the Science and Technology Program Project of the Ministry of Public Security(No.2022ZB12) （No.2022ZB12）
