Magneto-Optical Response Enhanced by Mie Resonances in Nanoantennas
Magneto-Optical Response Enhanced by Mie Resonances in Nanoantennas
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DOI：
10.1021/acsphotonics.7b00783
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发表时间：
2017-10-01
期刊：
影响因子：
7
通讯作者：
Fedyanin, Andrey A.
中科院分区：
文献类型：
--
作者：
Barsukova, Maria G.;Shorokhov, Alexander S.;Fedyanin, Andrey A.
我们从实验和数值两个方面证明了亚波长介质纳米结构中的磁光效应在磁环境中表现出局域磁米氏共振的多倍增强。我们使用非晶硅纳米盘覆盖一层薄的镍薄膜，与沉积在平板二氧化硅衬底上的薄镍膜相比，纳米盘的混合磁光阵列的磁光响应提高了5倍。我们的发现为主动和非互易的光子纳米结构和超器件提供了一个新的基础，可以通过外部磁场进行调节。
We demonstrate both experimentally and numerically multifold enhancement of magneto-optical effects in sub wavelength dielectric nanostructures with a magnetic surrounding exhibiting localized magnetic Mie resonances. We employ amorphous silicon nanodisks covered with a thin nickel film and achieve the 5-fold enhancement of the magneto-optical response of the hybrid magnetophotonic array of nanodisks in comparison with a thin nickel film deposited on a flat silica substrate. Our findings allow for a new basis for active and nonreciprocal photonic nanostructures and metadevices, which could be tuned by an external magnetic field.