首页> 外文期刊>The European physical journal, D. Atomic, molecular, and optical physics >Terahertz tunable reflectance of extrinsic photonic crystals by external magnetic field
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Terahertz tunable reflectance of extrinsic photonic crystals by external magnetic field

机译:通过外部磁场可调谐外部光子晶体的反射率

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摘要

In this work, we theoretically investigate the reflectance of an extrinsic photonic crystal (PC) which is composed of bulk semiconductor (InSb) under the effect of a spatially periodic magnetic field. We consider the magneto-optical effect where the magnetic field is parallel to the direction of wave propagation (Faraday effect). In addition, we take into account the lossy nature of InSb. Numerical results which have been conducted by the transfer matrix method show that our structure behaves like conventional PC with switchable electromagnetic band gaps. We show that our structure can be used as a tunable reflector that has the advantages of being tunable by the magnetic field and it fits to work in terahertz frequency range.
机译:在这项工作中,我们从理论上研究了由大块半导体(InSb)组成的非本征光子晶体(PC)在空间周期磁场作用下的反射率。我们考虑磁光效应,其中磁场平行于波传播的方向(法拉第效应)。此外,我们还考虑了InSb的损耗性质。用传输矩阵方法进行的数值计算结果表明,我们的结构与传统的PC一样,具有可切换的电磁带隙。我们证明,我们的结构可以用作可调谐反射器,具有磁场可调谐的优点,适合在太赫兹频率范围内工作。

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