論文

査読有り
2018年3月30日

Brillouin Light Scattering by Magnetic Quasivortices in Cavity Optomagnonics

Physical Review Letters
  • A. Osada
  • ,
  • A. Gloppe
  • ,
  • R. Hisatomi
  • ,
  • A. Noguchi
  • ,
  • R. Yamazaki
  • ,
  • M. Nomura
  • ,
  • Y. Nakamura
  • ,
  • K. Usami

120
13
開始ページ
133602
終了ページ
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1103/PhysRevLett.120.133602
出版者・発行元
American Physical Society

A ferromagnetic sphere can support optical vortices in the form of whispering gallery modes and magnetic quasivortices in the form of magnetostatic modes with nontrivial spin textures. These vortices can be characterized by their orbital angular momenta. We experimentally investigate Brillouin scattering of photons in the whispering gallery modes by magnons in the magnetostatic modes, zeroing in on the exchange of the orbital angular momenta between the optical vortices and magnetic quasivortices. We find that the conservation of the orbital angular momentum results in different nonreciprocal behavior in the Brillouin light scattering. New avenues for chiral optics and optospintronics can be opened up by taking the orbital angular momenta as a new degree of freedom for cavity optomagnonics.

リンク情報
DOI
https://doi.org/10.1103/PhysRevLett.120.133602
URL
https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.120.133602
ID情報
  • DOI : 10.1103/PhysRevLett.120.133602
  • ISSN : 1079-7114
  • ISSN : 0031-9007
  • SCOPUS ID : 85044861823

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