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为了了解温度变化对冰洲石晶体W0llaston棱镜分束角的影响,首先需决定棱镜分束角的两个因素,即棱镜的结构角和晶体中o光、e光的主折射率;然后从温度对这两个因素的影响出发,从理论上对冰洲石晶体Wollaston棱镜中的o光、e光分束角的温度效应进行了研究。结果表明,随着温度的升高,两分束角减小,但o光减小的幅度要比e光大得多。建立了实验测试系统,实验测试结果与理论分析结果相吻合。
In order to know the influence of temperature on the beam splitting angle of the W011 astonston prism, we must first determine the two factors of the prism splitting angle, that is, the structural angle of the prism and the main refractive index of the o and e light in the crystal. From the temperature Based on the influence of these two factors, the temperature effect of o-beam and e-beam angle in the Wollaston prism of the icelandic crystal was theoretically studied. The results show that as the temperature increases, the bifurcation angle decreases, but the magnitude of the o light decreases much more than the e light. The experimental test system is established. The experimental test results are consistent with the theoretical analysis results.