电场极化对各向异性介质中光电传输的影响  

Effects of Electric Field Polarization on PhotoelectricTransmission in Anisotropic Media

作　　者：李瑾 李应乐 冯晓毅[2] LI Jin;LI Yingle;FENG Xiaoyi(School of Information Engineering,Shaanxi Xueqian Normal University,Xi’an 710100,China;School of Electronics and Information,Northwestern Polytechnical University,Xi’an 710072,China)

机构地区：[1]陕西学前师范学院信息工程学院,西安710100 [2]西北工业大学电子信息学院,西安710072

出　　处：《现代应用物理》2024年第2期126-131,共6页Modern Applied Physics

基　　金：国家自然科学基金资助项目(60971079);陕西学前师范学院基金资助项目(2021YBKJ35)。

摘　　要：针对各向异性介质中光电波的传播特性,基于各向异性介质的麦克斯韦方程组,获得了各向异性介质中电场强度与波矢量、电容率张量的解析关系式,并验证了关系式的有效性。以典型的石膏晶体和通用的CO_(2)激光为例对各向异性介质中的非常光和寻常光进行了数值仿真与分析。仿真结果表明,介质中的非常光波矢量随电场极化态的变化而变化,随小电场的变化比较剧烈,传播波数具体的变化与电场强度及电容率张量有关,非常光波矢量的方向随电场强度分量变化而显著变化;寻常光波矢量不随电场强度分量的变化而变化。Based on the Maxwell equations in anisotropy media,the analytical relationship between electric field intensity,wave vector,and permittivity tensor in anisotropic media is obtained,and the effectiveness of the relationship is verified.Taking typical gypsum crystals and universal CO_(2)laser as examples,the numerical simulation and analysis on extraordinary and ordinary light in anisotropic media are conducted.The simulation results show that the wave vector of extraordinary light in the anisotropic media varies with the polarization state of the electric field,and the variation with small electric field is more drastic.The specific variation of the propagation wave number of extraordinary light is related to the electric field intensity and permittivity tensor.The direction of wave vector of extraordinary light varies significantly with the components of the electric field strength.The wave vector of ordinary light does not vary with the variation of the components of electric field strength.

关 键 词：各向异性 波矢量 极化状态 

分 类 号：O436[机械工程—光学工程] TN012[理学—光学]