基于Ω粒子的手性特异材料中的古斯-汉森位移  

Goos-Hänchen Shift of the Dispersive Chiral Metamaterials Based on Ω Particles

作　　者：黄艳艳[1] 印钱柳 于祥 于忠卫[1] HUANG Yanyan;YIN Qianliu;YU Xiang;YU Zhongwei(School of Sciences,Nantong University,Nantong 226019,China)

机构地区：[1]南通大学理学院,江苏南通226019

出　　处：《南通大学学报（自然科学版）》2021年第4期87-94,共8页Journal of Nantong University(Natural Science Edition)　

基　　金：国家自然科学基金项目(11604163);江苏省大学生创新创业训练计划项目(201910304005Z)。

摘　　要：为了研究基于Ω粒子共振模型的各向异性手性特异平板材料的反射光束的偏移效应,利用稳态相位法,给出了反射光束的古斯-汉森(Goos-Hanchen,GH)位移的表达形式。数值模拟结果显示:对于横磁波入射,共同极化反射分量的相对GH位移在两个布儒斯特角处得到增强,而对应于大布儒斯特角的GH位移的增强峰更大。同时,大布儒斯特角处的GH位移的增强对手性材料的厚度和入射频率非常敏感,通过微调厚度或入射频率,可实现GH位移正负增强的转换。在入射角不变的情况下,选择合适的入射频率,可实现不同厚度处共同极化GH位移的正负增强转换。另外,对于固定的手性材料厚度,通过微调入射角,还可实现共同极化GH位移在不同频率处的正负增强。In order to investigate the reflected beam shifts in the anisotropic chiral metamaterial based on theΩparticle resonance model,we give the expression of the Goos-Hänchen(GH)shifts of reflected beam by using the stationary phase method.The numerical results show that for the incidence of the transverse magnetic wave,the relative GH shifts of co-polarization reflection are enhanced at two Brewster angles,and the enhancement peak of GH shift is larger corresponding to the large Brewster angle.Meanwhile,the enhancement of GH shifts at large Brewster angle is very sensitive to the thickness of the chiral material and incident frequency,the transition of the positive and negative enhancement of the GH shift can be realized by slightly adjusting the thickness or incident frequency.As the incident angle is fixed,the positive and negative transition of the co-polarization GH shifts at different thicknesses can be realized by selecting the appropriate incident frequency.In addition,for the fixed thickness of chiral materials,the positive and negative enhancement of the co-polarization GH shifts at different frequencies can be achieved by modifying the incident angles slightly.

关 键 词：古斯-汉森位移 手性特异材料 稳态相位法 各向异性 

分 类 号：O435.1[机械工程—光学工程] TN247[理学—光学]