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首页> 外文期刊>Journal of Physics, D. Applied Physics: A Europhysics Journal >Plasmon flow control at gap waveguide junctions using square ring resonators
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Plasmon flow control at gap waveguide junctions using square ring resonators

机译:使用方形环形谐振器控制间隙波导结处的等离子体流

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摘要

A compact add-drop coupler with square ring resonator (SRR) in gap plasmon waveguide is studied. It is shown that there exist both travelling-wave and standing-wave resonant modes in the resonator due to the influence of the four corners in the square ring. Based on SRR, a new type of two-dimensional plasmonic L-shaped bend is proposed. The compact geometry and high add-drop efficiency of the proposed structure enable the realization of flexible flow control at waveguide junctions, e.g. T-splitter and waveguide cross intersections, in nano scale. The optical field propagation patterns in the gap waveguide junctions equipped with SRRs are investigated by the finite-difference time-domain method.
机译:研究了间隙等离子体激元波导中带有方环谐振器(SRR)的紧凑型分插耦合器。结果表明,由于方形环中四个角的影响,谐振器中既存在行波谐振模式又存在驻波谐振模式。基于SRR,提出了一种新型的二维等离子L形弯头。所提出的结构的紧凑的几何形状和高的上落效率使得能够在波导结处实现灵活的流控制,例如在波导结处。 T分流器和波导交叉交叉点,纳米级。通过时域有限差分法研究了具有SRR的间隙波导结中的光场传播模式。

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