Fast acquisition of spin-wave dispersion by compressed sensing

Ryo Kainuma, Keita Matsumoto, Takuya Satoh

Research output: Contribution to journalArticlepeer-review

Abstract

For the realization of magnonic devices, spin-wave dispersions need to be identified. Recently, the time-resolved pump-probe imaging method combined with the Fourier transform was demonstrated for obtaining the dispersions in the lower-wavenumber regime. However, the measurement takes a long time when the sampling rate is sufficiently high. Here, we demonstrated the fast acquisition of spin-wave dispersions by using the compressed sensing technique. Further, we quantitatively evaluated the consistency of the results. Our results can be applied to other various pump-probe measurements, such as observations based on the electro-optical effects.

Original languageEnglish
Article number033004
JournalApplied Physics Express
Volume14
Issue number3
DOIs
Publication statusPublished - Mar 2021

All Science Journal Classification (ASJC) codes

  • Engineering(all)
  • Physics and Astronomy(all)

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