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近零介电常数区超导薄层的Goos-Hänchen位移
武继江,高金霞
0
(山东理工大学物理与光电工程学院,淄博 25500)
摘要:
Goos-H?nchen(GH)位移是一种特殊的光学现象,具有广泛的应用.构造材料光学性质的差异对同一的结构的GH位移有很大影响.在近零介电常数区,本文比较研究了不同偏振态的光波入射到超导薄层上的GH位移.当以大于临界角的入射角入射时,s偏振光的GH位移始终保持为正值,而p偏振光的GH位移的正负与超导材料的介电常数为零时的波长相关联.当入射光波长大于该波长时,GH位移会出现负值.相关参数对不同偏振态下的GH位移的影响存在较大差异.相对于p偏振光,GH位移在s偏振光入射时随相关参数的变化规律较为简单.超导材料在光子学领域具有广泛的应用,计算结果为基于超导材料的新型光子学器件研究开发提供了参考.
关键词:  物理光学,Goos-H?nchen位移,零折射率,超导
DOI:10.13380/j.ltpl.02019.03.011
基金项目:
Goos-Hänchen Shift of Superconducting Slab in Near Zero-Permittivity Region
WUJijiang,GAOJinxia
(School of Physics and Optoelectronic Engineering of Shandong University of Technology, Zibo 255000)
Abstract:
As a special optical phenomenon, the Goos-H?nchen (GH) shift has been found a wide range of applications. The GH shift will be different for the same structure constructed using different optical materials. In the near zero-permittivity region, the GH shift of the reflected light with different polarization for a superconducting slab is investigated theoretically. When the incident angle is greater than the critical angle, the GH shift of s polarized light always keep positive. But, the property of GH shift for p polarized light is related to the wavelength at which the permittivity of the superconducting material is zero. When the incident light wavelength is greater than the wavelength, the negative GH shift will be found for p polarized light. The influence of relevant parameters on GH shift for different polarized light is quite different. Compared with p polarized light, the variation of the GH shift with the relevant parameters is simple when a s polarized light is incident. The superconducting materials have been widely used in the field of photonics. The results provide a useful reference for the research and development of new photonic devices based on superconducting materials.
Key words:  Physical optics, Goos-H?nchen shift, Zero refractive index, Superconductor

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