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首页> 外文期刊>Optics Communications: A Journal Devoted to the Rapid Publication of Short Contributions in the Field of Optics and Interaction of Light with Matter >High-contrast controllable switching based on polystyrene nonlinear cavities in 2D hole-type photonic crystals
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High-contrast controllable switching based on polystyrene nonlinear cavities in 2D hole-type photonic crystals

机译：基于2D孔型光子晶体聚苯乙烯非线性腔的高对比度可控切换

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摘要

We present a new high-contrast controllable switch, which is based on a polystyrene nonlinear cavity, and is implemented in a two dimensional (2D) hole-type photonic crystal (PC). We show that by applying a control signal, the input power can be transmitted to the output waveguide with a high contrast ratio. The operation of the proposed device is investigated through the use of coupled-mode theory (CMT) and finite-difference timedomain (FDTD) method. The contrast ratio of the proposed device varies between 18 and 23, which is higher than the corresponding value in the previous investigations. Based on the simulation results, with increasing the control power the range of operating power will be increased, while the contrast ratio will be decreased. It has been shown that in a modified structure, at the expense of the range of operating power and the contrast ratio, the control power can be decreased, considerably.
机译：我们提出了一种新的高对比度可控开关，其基于聚苯乙烯非线性腔，并在二维（2D）孔型光子晶体（PC）中实现。 我们表明，通过应用控制信号，可以以高对比度传输到输出波导的输入功率。 通过使用耦合模式理论（CMT）和有限差分时间（FDTD）方法来研究所提出的装置的操作。 所提出的装置的对比度在18和23之间变化，其高于先前研究中的相应值。 基于仿真结果，随着控制功率的增加，运行功率范围将增加，而对比度将减少。 已经表明，在修改的结构中，在操作功率范围和对比度的牺牲中，可以显着降低控制功率。

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