Goos-Hanchen Shift Spatially Resolves Magneto-Optical Kerr Effect Enhancement in Magnetoplasmonic Crystals

被引：1
|
作者：
Makarova, Anastasia V. [1 ]
Nerovnaya, Anastasia A. [1 ]
Gulkin, Dmitry N. [1 ]
Popov, Vladimir V. [1 ]
Frolov, Aleksandr Yu. [1 ]
Fedyanin, Andrey A. [1 ]
机构：
[1] Lomonosov Moscow State Univ, Fac Phys, Moscow 199991, Russia
来源：
ACS PHOTONICS | 2024年 / 11卷 / 04期
基金：
俄罗斯科学基金会;
关键词：
Goos-Hanchen shift; magnetoplasmonics; magnetoplasmonic crystals; surface plasmons; transverse magneto-optical Kerr effect; LATERAL DISPLACEMENT; STATES; MODES;
D O I：
10.1021/acsphotonics.3c01844
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
We report on how observation of the Goos-Hanchen (GH) shift can be used to spatially resolve the transverse magneto-optical Kerr effect (TMOKE) enhancement in all-nickel magnetoplasmonic crystals (MPCs). First, the excitation of surface plasmons in the MPCs leads to a 15.3 mu m (18 lambda) GH shift. Then, in the presence of a transverse magnetic field, the modulation of the lateral spatial intensity distribution of the reflected light [TMOKE(x)], caused by the GH shift, reaches 4.7% in the experiment. The spatially resolved TMOKE(x) values are several times higher compared to those from conventional TMOKE measurements in the MPCs. The concept of the spatially resolved magneto-optical effects under GH shift can be further extended to other magnetophotonic nanodevices for additional enhancing magneto-optical effects, sensing, and light modulation applications.
引用
收藏
页码：1619 / 1626
页数：8
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