FDTD simulation of enhanced Faraday effect in plasmonic composite structures with rectangularly arranged Au particles.

2018 IEEE International Magnetic Conference (INTERMAG) Pub Date : 2018-04-23 DOI:10.1109/INTMAG.2018.8508694

J. Schlipf, Y. Itabashi, T. Goto, H. Takagi, P. Lim, Y. Nakamura, I. Fischer, J. Schulze, H. Uchida, M. Inoue

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Abstract

Magneto-optical (MO) effects enable non-reciprocal optical components like optical circulators and isolators as well as a magneto-optical spatial light modulator with switching speeds superior to a digital micromirror and a liquid crystal device. To develop a magneto-optical device with high performance, it is desirable to use materials with large rotation angles and small extinction coefficients. In other approaches introduction of nanostructures, magnetophotonic crystals [1] and localized surface plasmon resonance (LSPR) [2] has been shown to provide enhancement of the Faraday effect for distinct wavelengths. This work shows how rectangular arrays of gold (Au) particles embedded into thin films of bismuth-substituted yttrium iron garnet (Bi:YIG) offer different phenomena in comparison with the square arrays previously studied [3] [4] [5]. This enhancement of Faraday rotation was first observed in samples fabricated and characterized experimentally [6].

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矩形排列金粒子的等离子体复合结构中增强法拉第效应的FDTD模拟。

磁光(MO)效应使非互易光学元件，如光环行器和隔离器，以及磁光空间光调制器的开关速度优于数字微镜和液晶器件。为了开发高性能的磁光器件，需要使用大旋转角度和小消光系数的材料。在其他方法中，引入纳米结构、磁光子晶体[1]和局部表面等离子体共振(LSPR)[2]已被证明可以增强不同波长的法拉第效应。这项工作展示了嵌入铋取代钇铁石榴石(Bi:YIG)薄膜中的金(Au)颗粒的矩形阵列与先前研究的方形阵列[3][4][5]相比，如何提供不同的现象。这种法拉第旋转的增强首先是在制备和实验表征的样品中观察到的[6]。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2018 IEEE International Magnetic Conference (INTERMAG)

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