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Transient grating generation of ultrafast surface magneto-elastic waves

  • Chia Lin Chang
  • , Julius Janušonis
  • , Vladimir M. Vlasov
  • , Alexey M. Lomonosov
  • , Vasily V. Temnov
  • , Ra'Anan I. Tobey
  • ICS/University of Groningen
  • Le Mans Universite

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

We present a simple experimental approach to generating and detecting surface-propagating magneto-elastic waves. Using the ultrafast optical transient grating geometry, we drive in-plane propagating surface acoustic waves which couple to, and resonantly drive, magnetization precession in thin magnetic films. The optical approach provides for the real-time detection of both elastic wave transients as well as the tightly coupled magnetization precession in independent detection channels and thus reveals the tight coupling between the two when an appropriate magnetic field is applied. We discuss the experimental geometry and resulting linear magneto-elastic responses. We briefly touch upon nonlinear magnetoelastic properties, which is the focus of our current work.

Original languageEnglish
Title of host publicationSpintronics IX
EditorsJean-Eric Wegrowe, Henri-Jean Drouhin, Manijeh Razeghi
PublisherSPIE
ISBN (Electronic)9781510602533
DOIs
Publication statusPublished - 1 Jan 2016
Externally publishedYes
EventSpintronics IX - San Diego, United States
Duration: 28 Aug 20161 Sept 2016

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume9931
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferenceSpintronics IX
Country/TerritoryUnited States
CitySan Diego
Period28/08/161/09/16

Keywords

  • Magnetoelasticity
  • Magnetostriction
  • Transient grating spectroscopy
  • Ultrafast optics

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