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Nanoscale plasmonic detector of wave intensity difference and uni-directional waveguide

机译：波强度差的纳米级等离子体检测器和单向波导

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摘要

In this paper, a new nanoscale plasmonic differential detector of wave intensities is proposed. This structure can be useful for calibration applications and for finding out if a wave intensity is high enough to pass a threshold level or not. Next, a nanoscale plasmonic uni-directional waveguide is presented. The distinction of this waveguide with similar cases is that the one-way wave-guiding is provided by adding a properly located controlling source, without employing any non-reciprocal material. This feature can be used in many applications that only uni-directional wave propagation is desirable. Both structures have been designed in metal-insulator-metal structure including cavity resonators. The operations are based on the coupling of the wave from input waveguides to the cavity resonators and decoupling to output waveguides in the cavity resonance wavelengths. The simulation results of performance of the structures, as elements applicable to photonic integrated circuits, have been obtained using the numerical method of the finite difference time domain.
机译：本文提出了一种新型的波强度纳米级等离子体激元检测器。该结构对于校准应用以及找出波强度是否足够高以通过阈值水平非常有用。接下来，提出了纳米级等离子单向波导。该波导在类似情况下的区别在于，通过添加适当放置的控制源可提供单向波导，而无需使用任何不可逆的材料。此功能可用于许多只需要单向波传播的应用中。两种结构均以包括空腔谐振器的金属-绝缘体-金属结构设计。这些操作基于在谐振腔谐振波长下波从输入波导到腔谐振器的耦合以及去耦到输出波导的耦合。使用有限差分时域的数值方法获得了结构性能的仿真结果，作为适用于光子集成电路的元件。

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