Excitation of short-wavelength spin waves in magnonic waveguides

被引：101

作者：

Demidov, V. E. ^{[1
,2
]}

Kostylev, M. P. ^{[3
]}

Rott, K. ^{[4
]}

Muenchenberger, J. ^{[4
]}

Reiss, G. ^{[4
]}

Demokritov, S. O. ^{[1
,2
]}

机构：

[1] Univ Munster, Inst Appl Phys, D-48149 Munster, Germany

[2] Univ Munster, Ctr Nonlinear Sci, D-48149 Munster, Germany

[3] Univ Western Australia, Sch Phys, Crawley, WA 6009, Australia

[4] Univ Bielefeld, Dept Phys, D-33501 Bielefeld, Germany

来源：

APPLIED PHYSICS LETTERS | 2011年 / 99卷 / 08期

基金：

澳大利亚研究理事会;

关键词：

LIGHT-SCATTERING SPECTROSCOPY;

D O I：

10.1063/1.3631756

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

By using phase-resolved micro-focus Brillouin light scattering spectroscopy, we demonstrate experimentally a phenomenon of wavelength conversion of spin waves propagating in tapered Permalloy waveguides. We show that this phenomenon enables efficient excitation of spin waves with sub-micrometer wavelengths being much smaller than the width of the microstrip antenna used for the excitation. The proposed excitation mechanism removes restrictions on the spin-wave wavelength imposed by the size of the antenna and enables improvement of performances of integrated magnonic devices. (C) 2011 American Institute of Physics. [doi:10.1063/1.3631756]

引用

页数：3

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