Coupling of Terahertz Surface Plasmon Polaritons in Corrugated Stacks of Dielectric and Semiconductor
We present a theoretical approach that terahertz surface plasmon polaritons (THz-SPPs) are tuned by temperature in a stack of dielectric and semiconductor with periodic corrugations. Based on Rayleigh hypothesis, we show that when THz electromagnetic wave illuminates the waved stack, temperature-dependent THz-SPPs are excited. At resonant modes, reflection dips or Fano-type resonance shape are found. With increasing the temperature difference of the upper and lower semiconductor layers in the stack, transmissions increase and reflections decrease significantly. Our investigation indicates that such stacks may achieve potential applications in thermally controlled THz devices.
Xin Wu De Li Wei-Hua Sun Feng Gao Zhi-Jian Zhang Ru-Wen Peng
National Laboratory of Solid State Microstructures and Department of Physics Nanjing University,Nanjing 210093,China
国际会议
Progress in Electromagnetics Research Symposium 2009(2009年电磁学研究新进展学术研讨会)(PIERS 2009)
北京
英文
1208-1211
2009-03-23(万方平台首次上网日期,不代表论文的发表时间)