Research field (4)：
Optical engineering and photonics
, Magnetism, superconductivity, and strongly correlated systems
, Semiconductors, optical and atomic physics
, Applied materials
Research keywords (4)：
laser spectroscopy
, time-resolved spectroscopy
, magnetic imaging
, magneto-optics
Research theme for competitive and other funds (4)：
2019 - 2022 Simultaneous observation of magnetic domain dynamics and spin-motive force generation using time-resolved magneto-optical microscopy
2005 - 2008 Low-energy operation of ultrafast all-optical gate switch for all-optical signal processing
2005 - 2006 超短パルス光照射による磁壁の運動の制御
1999 - 1999 光による物質系の相制御
Papers (56)：
Takeshi Ogasawara, Akinobu Yamaguchi. Observation of frequency dependent resonances in magnetic vortex core gyration using time-resolved magneto-optical Kerr microscope with pulsed semiconductor laser illumination. Japanese Journal of Applied Physics. 2022. 61. 1
Ryo Nakamura, Shunya Saegusa, Naoya Akamatsu, Keisuke Yamada, Takeshi Ogasawara, Masaki Oura, Takuo Ohkochi, Akinobu Yamaguchi. Direct observation of a magnetic domain change in Ni wire and film on a LiNbO3 substrate using X-ray magnetic circular dichroic photoemission electron microscopy. Japanese Journal of Applied Physics. 2021. 60. {SB}. SBBC01-SBBC01
Matsubara M., Ogasawara T., Okimoto Y., Tomioka Y., Okamoto H., Tokura Y. 20pYG-5 Photoinduced charge and spin dynamics in perovskite manganites. Meeting abstracts of the Physical Society of Japan. 2008. 63. 2. 630-630
