15 citations · 30 across the 5 of their papers we have counts for
7 papers
Sublattice-selective inverse Faraday effect in ferrimagnetic rare-earth iron garnet
Toshiki Hiraoka, Ryo Kainuma, Keita Matsumoto +2
We performed time-resolved pump--probe measurements using rare-earth iron garnet \ce{Gd3/2Yb1/2BiFe5O12} as a two-sublattice ferrimagnet. We measured the initial phases of the magn…
Sub-millimeter propagation of antiferromagnetic magnons via magnon-photon coupling
Ryo Kainuma, Keita Matsumoto, Toshimitsu Ito +1
For the realization of magnon-based current-free technologies, referred to as magnonics, all-optical control of magnons is an important technique for both fundamental research and…
Fast acquisition of spin-wave dispersion by compressed sensing
Ryo Kainuma, Keita Matsumoto, Takuya Satoh
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…
Selective imaging of terahertz electric field of phonon-polariton in LiNbO
Keita Matsumoto, Takuya Satoh
Coherent phonon-polaritons have attracted a considerable amount of interest owing to their relevance to nonlinear optics and terahertz (THz)-wave emissions. Therefore, it is import…
Observation of evanescent spin waves in the magnetic dipole regime
Keita Matsumoto, Isao Yoshimine, Kosei Himeno +2
We observed spin-wave transmission through an air gap that works as a prohibited region. The spin waves were excited by circularly polarized pump pulses via the inverse Faraday eff…
Ultrafast Light-driven Simultaneous Excitation of Coherent Terahertz Magnons and Phonons in Multiferroic BiFeO
Pritam Khan, Masataka Kanamaru, Keita Matsumoto +2
The ultrafast switching of magnetization in multiferroic materials by a femtosecond laser could provide various advantages in photonics and magnonics. An efficient approach to cont…