Liquid crystal-modulated tunable filter based on coupling between plasmon-induced transparency and cavity mode
作者: Dong LiFei LiuGuang Jun RenPan FuJian Quan Yao
作者单位: 1Tianjin University of Technology
2Tianjin University
刊名: Optical Engineering, 2018, Vol.57 (9), pp.097101-097101
来源数据库: SPIE-the International Society for Optical Engineering
DOI: 10.1117/1.OE.57.9.097101
关键词: Tunable filterActive plasmonicsPlasmon-induced transparencyCavity modeLiquid crystal
原始语种摘要: A liquid crystal (LC)-modulated tunable filter is theoretically studied, consisting of an Au nanorod array and an Au film separated by a dielectric indium tin oxide (ITO) glass layer. It is well established that this system can achieve double absorptive peaks resulting from the strong plasmonic coupling between the plasmon-induced transparency effect of the nanorod array and the cavity mode of the Au microcavity structure. The positions of the double absorptive peaks can be tuned dynamically based on the electro-optic effect of LC. The simulation results reveal that a band range of 160 nm has been confirmed at near-infrared wavelengths by altering the driven voltage of LC from 0 to 8 V. The proposed structure is able to filter the two peaks with the reflection coefficients <5 % . Compared...
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关键词翻译
关键词翻译
  • 过滤机 晶体
  • tunable 可(协)调
  • cavity 
  • crystal 晶体
  • filter 晶体
  • modulated 巳的
  • plasmon 细胞质基因
  • transparency 透萌
  • induced 感应的
  • coupling 连接
  • tunability 可协调性