論文

査読有り
2020年5月

Imaging of caustic-like spin wave beams using optical heterodyne detection

APPLIED PHYSICS LETTERS
  • Yoichi Shiota
  • ,
  • Shinsaku Funada
  • ,
  • Ryusuke Hisatomi
  • ,
  • Takahiro Moriyama
  • ,
  • Teruo Ono

116
19
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1063/5.0010410
出版者・発行元
AMER INST PHYSICS

We investigated caustic-like spin wave beams radiated from a narrow waveguide to a continuous film using a Permalloy. For this purpose, we developed a spatially resolved optical heterodyne detection of propagating spin waves by using the polar Kerr effect, which allows the measurement of the intensity and the phase information of the spin waves. We characterized magnetostatic surface spin wave modes in one-dimensional (1D) propagation and caustic-like spin wave beams in two-dimensional (2D) propagation as a function of excitation frequency. The fast Fourier transformations of the real space images reconstruct 1D and 2D spin wave dispersion, which agree with the theoretical calculations.

Web of Science ® 被引用回数 : 2

リンク情報
DOI
https://doi.org/10.1063/5.0010410
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000536242400001&DestApp=WOS_CPL
ID情報
  • DOI : 10.1063/5.0010410
  • ISSN : 0003-6951
  • eISSN : 1077-3118
  • Web of Science ID : WOS:000536242400001

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