Zobrazeno 1 - 10
of 72
pro vyhledávání: '"Shota, Kimura"'
Publikováno v:
Communications Physics, Vol 4, Iss 1, Pp 1-8 (2021)
Enhancing light-matter interaction at gigahertz rates has so far been achieved by structural modification of materials, but does not allow the behaviour to be switched on-demand. Here, an alternative method using pulsed light is presented that provid
Externí odkaz:
https://doaj.org/article/70a8270c94744951844963699d4973de
Autor:
Azliza Mad Anuar, Akira Minami, Hiroshi Matsushita, Kanako Ogino, Kosei Fujita, Hatsune Nakao, Shota Kimura, Vikineswary Sabaratnam, Kaoru Umehara, Yuuki Kurebayashi, Tadanobu Takahashi, Hiroaki Kanazawa, Akihiko Wakatsuki, Takashi Suzuki, Hideyuki Takeuchi
Publikováno v:
Biological and Pharmaceutical Bulletin. 45:1438-1443
Publikováno v:
Communications Physics, Vol 4, Iss 1, Pp 1-8 (2021)
Multi-gigahertz mechanical vibrations stemming from interactions between light fields and matter, also known as acoustic phonons, have long been a subject of study. In recent years, specially designed functional devices have been developed to enhance
Publikováno v:
IEEJ Transactions on Industry Applications. 140:905-910
Publikováno v:
Scientific Reports, Vol 9, Iss 1, Pp 1-6 (2019)
Scientific Reports
Scientific Reports
The pulse duration that is available from femtosecond mode-locked lasers is limited by the emission bandwidth of the laser crystals used. Considerable efforts have been made to broaden the emission gain bandwidth in these lasers over the past five de
Autor:
Masayoshi Yamamoto, Shota Kimura, Wilmar Martinez, Mostafa Noah, Jun Imaoka, Shun Endo, Kazuhiro Umetani
Publikováno v:
IEEE Transactions on Industry Applications. 54:6190-6204
Multiphase topologies are preferably employed in power conversion systems to lessen the per-phase circuit current, conduction losses, devices thermal stresses, and to reduce the output current ripples. A multiphase LLC resonant dc/dc converter usuall
Publikováno v:
Physical Review A. 102
$Q$-switching instability restricts pulse shortening in Kerr-lens mode-locked lasers (KLMLs). However, $Q$-switching suppression in KLMLs has not been discussed to date because of the difficulty of treating the Kerr-lens effect theoretically. We inve
Publikováno v:
2020 22nd European Conference on Power Electronics and Applications (EPE'20 ECCE Europe).
In DC electric railways, voltage is generated between rail and earth, i.e., rail potential. To keep the voltage below the permissible voltage limit specified by the international standard IEC 62128, a voltage limiting device (VLD) is added to railway
Publikováno v:
Laser Congress 2020 (ASSL, LAC).
We investigated Q-switching stability limits of Kerr-lens mode locking theoretically and experimentally. We found critical parameters to suppress Q-switching in Kerr-lens mode-locked lasers.
Autor:
Kenkichiro Okamoto, Jun Imaoka, Masayoshi Yamamoto, Mostafa Noah, Wilmar Martinez, Masahito Shoyama, Shota Kimura
Publikováno v:
IEEE Transactions on Power Electronics. 33:3346-3362
High power density and high efficiency in dc/dc converters are required in various applications such as the automotive application. Interleaved multiphase circuits with integrated magnetic components can fulfill these requirements because passive com