Terahertz Negative Refraction in a High-Temperature Superconducting Material

被引：2
|
作者：
Wu, Meng-Ru [1 ,2 ,3 ]
Hsu, Heng-Tung [4 ]
Wu, Chien-Jang [5 ]
Chang, Shoou-Jinn [1 ,2 ,3 ]
机构：
[1] Natl Cheng Kung Univ, Inst Microelect, Tainan 70101, Taiwan
[2] Natl Cheng Kung Univ, Dept Elect Engn, Ctr Micro Nano Sci & Technol, Tainan 70101, Taiwan
[3] Natl Cheng Kung Univ, Adv Optoelect Technol Ctr, Tainan 70101, Taiwan
[4] Yuan Ze Univ, Dept Commun Engn, Chungli 320, Taiwan
[5] Natl Taiwan Normal Univ, Inst Electroopt Sci & Technol, Taipei 11677, Taiwan
来源：
IEEE TRANSACTIONS ON TERAHERTZ SCIENCE AND TECHNOLOGY | 2015年 / 5卷 / 02期
关键词：
Negative refraction; superconductor; polarized wave; two-fluid model; PHOTONIC BAND-STRUCTURE; INDEX; TRANSMISSION; LIGHT;
D O I：
10.1109/TTHZ.2014.2384275
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
The phenomenon of negative refraction at terahertz (THz) frequency for a high-temperature superconducting material is theoretically investigated based on the inhomogeneous wave theory. Negative refraction, which arises from the negative refractive angle, can occur when a p-polarized wave is incident from a dielectric to a superconductor. The dependences of negative refractive angle on the angle of incidence, the wave frequency, and the temperature have been analytically studied. The conditions for obtaining a pronounced result in negative refraction are elucidated. The study of negative refraction is of potential use in designing a tunable polarizer. In addition, it is an extended study of a transmission problem that is not treatable from the Fresnel equations in electromagnetics and optics.
引用
收藏
页码：230 / 235
页数：6
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