Narrow-Band Plasmonic Filter Based on Graphene Waveguide with Asymmetrical Structure

被引：0
作者：
Xin Luo
Xiang Zhai
Lingling Wang
Qi Lin
机构：
[1] Hunan University,Key Laboratory for Micro
来源：
Plasmonics | 2015年 / 10卷
关键词：
Narrow-band filter; Plasmonic; Graphene waveguide; Finite difference time-domain method;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
A narrow-band plasmonic filter based on graphene waveguide with asymmetrical structure is proposed, and the corresponding transmission characteristics are investigated. The asymmetrical structure consists of two sets of five air trenches with different trench sizes. Since the Bragg wavelength could be changed with the length and depth of each air trench, the bandgap (or the passband) of the single set with five short thick air trenches and the passband (or the bandgap) of the single set with five long thin air trenches are overlapped and the cascaded transmission of the two structures is very low in a certain wavelength range. By using the finite-difference time-domain (FDTD) method, a narrow-band transmission peak with 3-dB bandwidth of 0.12 μm could be obtained in the mid-infrared region around 6.9 μm. 
引用
收藏
页码：1427 / 1431
页数：4
相关论文
共 121 条
[1]  
Liu L(2005)Novel surface plasmon waveguide for high integration Opt Express 13 6645-6650
[2]  
Han ZH(2006)The past, present, and future of silicon photonics IEEE J Sel Top Quantum Electron 12 1678-1687
[3]  
He SL(2013)High-uniformity multichannel plasmonic filter using linearly lengthened insulators in metal-insulator-metal waveguide Opt Lett 38 1585-1587
[4]  
Soref R(2005)Plasmon Bragg reflectors and nanocavities on flat metallic surfaces Appl Phys Lett 87 013107-11323
[5]  
Luo X(2006)A low-loss metal-insulator-metal plasmonic bragg reflector Opt Express 14 11318-93
[6]  
Zou XH(2007)Surface plasmon Bragg gratings formed in metal-insulator-metal waveguides IEEE Photon Technol Lett 19 91-830
[7]  
Li XF(2003)Surface plasmon subwavelength optics Nature 424 824-690
[8]  
Zhou Z(2014)A plasmonic wavelength-selected intersection structure Plasmonics 9 685-3026
[9]  
Pan W(2014)Design of an optical power and wavelength splitter based on subwavelength waveguides J Lightw Technol 32 3020-24
[10]  
Yan LS(2012)Surface plasmon-polariton amplifiers and lasers Nat Photonics 6 16-3694
12345678910