Tunable Dual-band Filter Based on Photonic Crystals Doped by Unmagnetized Plasma
A novel tunable dual-band filter from one-dimensional photonic crystals doped by unmagnetized plasma is analyzed.Two defective PCs composed by ZnSe and Na3AlF6 with one defect layer made by unmagnetized plasma stacked in symmetric geometry are considered.By the transfer matrix method and Blochs theorem,it is found that the frequency of the defect modes can be modulated by plasma frequency and defect thickness.Without changing the structure of the photonic crystal,the defect modes can be modulated in a larger frequency range.These results may provide theoretical instructions for designing new optoelectronic devices.
Xiang-Kun Kong Shao-Bin Liu Ping Wang Xin Li Li Liu
College of Electronic and Information Engineering,Nanjing University of Aeronautics and Astronautics College of Electronic and Information Engineering,Nanjing University of Aeronautics and Astronautics
国际会议
Progress in Electromagnetics Research Symposium 2011(2011年电磁学研究新进展学术研讨会)
苏州
英文
1034-1037
2011-09-01(万方平台首次上网日期,不代表论文的发表时间)