经典文献中洛匈棱镜分束角公式问题澄清

打开文本图片集

中图分类号：0436.3；0439； 文献标志码：A doi：10.37188/CO.2025-0036 CSTR：32171.14.CO.2025-0036

Abstract： During the research and development process the scientific research project， it was found that the beam deviation angle formula a Rochon prism in classical optical literatures （for negative crystals） was incorrect. Therefore，an accurate expresson for the beam deviation angle a Rochon prism was derived （distributed for negative and positive crystals），and the problem design in the optical systems containing a Rochon prism in the scientific research projects was solved. In response to the problem small angles between the two output beams light in general a Rochon prism products，the expressons for the deviation angles a Rochon prism composed negative and positive crystals， respectively， were analyzed and derived. In addition， the deviation angles a Rochon prism composed diferent crystal materials were analyzed and the expression was derived.By calculating and comparing with actual data， it is known that the beam deviation angle a Rochon prism made diferent crystal materials is significantly higher than that a Rochon prism made the same crystal material.For applications in the ultraviolet band，a specific design example a large beam deviation angle for a Rochon prism composed heterogeneous crystal materials is provided. This type a Rochon prism is composed heterogeneous crystal materials，and according to the appropriate crystal arrangement order，a relatively large beam deviation angle can be obtained under the limitation reasonable crystal thickness， which is obviously beneficial for the structural design the polarization instruments and equipments.

Key words： Rochon prism; quartz; MgF2 crystal; o ray; e ray

1引言

在研究偏振检测装置科研项目的过程中，采用经典光学文献中的洛匈棱镜（Rochonprism）的分束角公式来设计加工以及装配了偏振态检测用光学系统，然后在应用该偏振检测装置测量光学系统的偏振态实验过程中发现在CCD上探测到重影，这表明洛匈棱镜分开的。（剩余11024字）