High-quality Au/BIG/GGG magnetoplasmonic crystals fabricated by a combined ion-beam etching technique

被引：14

作者：

Chekhov, A. L. ^{[1
]}

Krutyanskiy, V. L. ^{[1
]}

Ketsko, V. A. ^{[2
]}

Stognij, A. I. ^{[3
]}

Murzina, T. V. ^{[1
]}

机构：

[1] Moscow MV Lomonosov State Univ, Dept Phys, Moscow 119991, Russia

[2] RAS, Kurnakov Inst Gen & Inorgan Chem, Moscow 117901, Russia

[3] NAS Belarus, Sci Pract Mat Res Ctr, Minsk 220072, BELARUS

来源：

OPTICAL MATERIALS EXPRESS | 2015年 / 5卷 / 07期

关键词：

TRANSMISSION;

D O I：

10.1364/OME.5.001647

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this paper we discuss a promising method for the fabrication of magnetoplasmonic crystals (MPC) based on the combined ion-beam etching technique. We show that this method allows producing high-quality planar 1D MPC structures consisting of a gold grating formed on top of a garnet-based magnetic dielectric layer. We demonstrate that resonant features of the MPC, which are determined by surface plasmon-polariton (SPP) and waveguide (WG) mode excitations, can be controlled by a proper choice of the MPC period and the stripe width. Transmission spectra of the MPCs were measured in a wide angular and wavelength range, revealing the excitation of SPP and WG modes of the orders up to m = +/- 3. The anomalous transmission is observed at normal incidence in the spectral region where Au/garnet SPPs are excited. High values of the linear magneto-optical intensity effect are observed in transmission through the MPC. The effect is odd with respect to the direction of the SPP propagation at the Au/garnet interface and vanishes at the edges of the Brillouin zones, where counter propagating plasmons degenerate into standing waves. (C) 2015 Optical Society of America

引用

页码：1647 / 1652

页数：6

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