An all-optical plasmonic limiter based on a nonlinear slow light waveguide
An all-optical plasmonic limiter based on a nonlinear slow light waveguide
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DOI：
10.1088/0957-4484/23/44/444014
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发表时间：
2012-11-09
期刊：
影响因子：
3.5
通讯作者：
Zhang, Ying
中科院分区：
文献类型：
--
作者：
Tao, Jin;Wang, Qi Jie;Zhang, Ying
首次提出并数值研究了一种基于非线性慢光波导的全光等离子体限制器。结果表明，减速因子可以通过入射表面等离子体波的强度来调节。此外，非线性慢光波导可以用作限制器，其中低入射功率强度的表面等离子体激元波可以通过限制器传输，而高功率的表面等离子体激元波则被完全阻挡。所提出的结构具有许多优点；它支持亚波长宽带慢光导模式，与半导体器件兼容，具有飞秒量级的超快响应时间，这对于全光集成等离子体器件来说是有前景的。
An all-optical plasmonic limiter based on a nonlinear slow light waveguide is proposed and numerically investigated for the first time. The results reveal that the slowdown factor can be tuned by the intensities of incident surface plasmon waves. In addition, the nonlinear slow light waveguide can be operated as a limiter, in which surface plasmon waves with low incident power intensities can transmit through the limiter while those with high power are completely blocked. The proposed structure has many advantages; it supports sub-wavelength broadband slow light guide modes, it is compatible with semiconductor devices and it has an ultra-fast response time at a femtosecond scale, which are promising for all-optical integrated plasmonic devices.