Writing and reading of an arbitrary optical polarization state in an antiferromagnet

Takuya Satoh, Ryugo Iida, Takuya Higuchi, Manfred Fiebig, Tsutomu Shimura

研究成果: Contribution to journalArticle査読

58 被引用数 (Scopus)

抄録

The interaction between light and magnetism is considered a promising route to the development of energy-efficient data storage technologies. To date, however, ultrafast optical magnetization control has been limited to a binary process, whereby light in either of two polarization states generates (writes) or adopts (reads) a magnetic bit carrying either a positive or negative magnetization. Here, we report how the fundamental limitation of just two states can be overcome, allowing an arbitrary optical polarization state to be written magnetically. The effect is demonstrated using a three-sublattice antiferromagnet-hexagonal YMnO 3. Its three magnetic oscillation eigenmodes are selectively excited by the three polarization eigenstates of the light. The magnetic oscillation state is then transferred back into the polarization state of an optical probe pulse, thus completing an arbitrary optomagnonic write-read cycle.

本文言語英語
ページ(範囲)25-29
ページ数5
ジャーナルNature Photonics
9
1
DOI
出版ステータス出版済み - 1 1 2015

All Science Journal Classification (ASJC) codes

  • 電子材料、光学材料、および磁性材料
  • 原子分子物理学および光学

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