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Waveguide photonic limiters based on topologically protected resonant modes

机译:基于拓扑保护谐振模式的波导光子限制器

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摘要

We propose a concept of chiral photonic limiters utilizing topologically protected localized midgap defect states in a photonic waveguide. The chiral symmetry alleviates the effects of structural imperfections and guarantees a high level of resonant transmission for low intensity radiation. At high intensity, the light-induced absorption can suppress the localized modes, along with the resonant transmission. In this case the entire photonic structure becomes highly reflective within a broad frequency range, thus increasing dramatically the damage threshold of the limiter. Here, we demonstrate experimentally the loss-induced reflection principle of operation which is at the heart of reflective photonic limiters using a waveguide consisting of coupled dielectric microwave resonators.
机译:我们提出了一种利用光子波导中受拓扑保护的局部中间能隙缺陷状态的手性光子限制器的概念。手性对称减轻了结构缺陷的影响,并确保了低强度辐射的高水平共振传输。在高强度下,光诱导的吸收可以抑制局部模式以及共振传输。在这种情况下,整个光子结构在很宽的频率范围内变得高度反射,从而大大增加了限幅器的损坏阈值。在这里,我们通过实验演示了损耗诱导的反射工作原理,这是使用耦合介电微波谐振器组成的波导的反射光子限制器的核心。

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  • 来源
    《Physical review》 |2017年第12期|121409.1-121409.5|共5页
  • 作者单位

    Institut de Physique de Nice, Université Cote d'Azur, CNRS, F-06100 Nice, France;

    Institut de Physique de Nice, Université Cote d'Azur, CNRS, F-06100 Nice, France;

    Department of Physics, Wesleyan University, Middletown, Connecticut 06459, USA;

    Air Force Research Laboratory, Sensors Directorate, Wright-Patterson Air Force Base, Ohio 45433, USA;

    Department of Physics, Wesleyan University, Middletown, Connecticut 06459, USA;

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