TY - JOUR
T1 - Fast acquisition of spin-wave dispersion by compressed sensing
AU - Kainuma, Ryo
AU - Matsumoto, Keita
AU - Satoh, Takuya
N1 - Publisher Copyright:
© 2021 The Japan Society of Applied Physics
PY - 2021/3
Y1 - 2021/3
N2 - 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.
AB - 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.
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U2 - 10.35848/1882-0786/abe085
DO - 10.35848/1882-0786/abe085
M3 - Article
AN - SCOPUS:85102580340
SN - 1882-0778
VL - 14
JO - Applied Physics Express
JF - Applied Physics Express
IS - 3
M1 - 033004
ER -