Large enhancement of Faraday rotation by localized surface plasmon resonance in Au nanoparticles embedded in Bi:YIG film

被引：78

作者：

Uchida, H. ^{[1
]}

Masuda, Y. ^{[1
]}

Fujikawa, R. ^{[1
]}

Baryshev, A. V. ^{[1
]}

Inoue, M. ^{[1
]}

机构：

[1] Toyohashi Univ Technol, Aichi 4418580, Japan

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2009年 / 321卷 / 07期

关键词：

Faraday rotation; Localized surface plasmon resonance; Au nanoparticle; Bi:YIG;

D O I：

10.1016/j.jmmm.2008.11.064

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A large enhancement of the Faraday rotation, which is associated with localized surface plasmon resonance (LSPR), was obtained in a sample with Au nanoparticles embedded in a Bi-substituted yttrium iron garnet (Bi:YIG)film. On a quartz substrate, Au nanoparticles were formed by heating an Au thin film, and a Bi:YIG film was then deposited on them. A sample containing the Au nanoparticles produced by 1000 degrees C heating showed a resonant attenuation with narrower bandwidth in the transmission spectrum than nanoparticles of other samples formed by low-temperature heating. The sharp resonant Faraday rotation angle was 4.4 times larger than the estimated intrinsic Bi:YIG film at the LSPR wavelength; the angular difference was 0.141. A discrepancy in the bandwidth between the transmission attenuation and the resonant Faraday rotation is discussed. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：843 / 845

页数：3

共 11 条

[1] Surface plasma resonance and magneto-optical enhancement in composites containing multicore-shell structured nanoparticles [J].