Zobrazeno 1 - 10
of 206
pro vyhledávání: '"Shigeki TOKITA"'
Autor:
Masanori Fujiwara, Shunsuke Inoue, Shin-ichiro Masuno, Haining Fu, Shigeki Tokita, Masaki Hashida, Norikazu Mizuochi
Publikováno v:
APL Photonics, Vol 8, Iss 3, Pp 036108-036108-9 (2023)
Recently, ultrashort laser processing has attracted attention for creating nitrogen-vacancy (NV) centers because this method can create single NV centers in spatially-controlled positions, which is an advantage for quantum information devices. On the
Externí odkaz:
https://doaj.org/article/39bf9cd31d0e4a1e8688b3823f148005
Autor:
Kenji Goya, Akira Mori, Shigeki Tokita, Ryo Yasuhara, Tetsuo Kishi, Yoshiaki Nishijima, Setsuhisa Tanabe, Hiyori Uehara
Publikováno v:
Scientific Reports, Vol 11, Iss 1, Pp 1-8 (2021)
Abstract Er3+/Dy3+ co-doped double-clad ZBLAN optical fiber has been used to obtain amplified spontaneous emission (ASE) broadband light sources cladding-pumped by 980-nm multimode laser diode (LD) sources. It has been demonstrated that mid-infrared
Externí odkaz:
https://doaj.org/article/3f51cfb3f89c4279bde4171be40c6878
Autor:
Fumiya Ishibashi, Takumi Hasada, Kensuke Homma, Yuri Kirita, Tsuneto Kanai, ShinIchiro Masuno, Shigeki Tokita, Masaki Hashida
Publikováno v:
Universe, Vol 9, Iss 3, p 123 (2023)
Toward the systematic search for axion-like particles in the eV mass range, we proposed the concept of a stimulated resonant photon collider by focusing three short pulse lasers into a vacuum. In order to realize such a collider, we have performed a
Externí odkaz:
https://doaj.org/article/b7f3f7a3d9ce483594b7d7928fa291c4
Autor:
Shohei Sakata, Seungho Lee, Hiroki Morita, Tomoyuki Johzaki, Hiroshi Sawada, Yuki Iwasa, Kazuki Matsuo, King Fai Farley Law, Akira Yao, Masayasu Hata, Atsushi Sunahara, Sadaoki Kojima, Yuki Abe, Hidetaka Kishimoto, Aneez Syuhada, Takashi Shiroto, Alessio Morace, Akifumi Yogo, Natsumi Iwata, Mitsuo Nakai, Hitoshi Sakagami, Tetsuo Ozaki, Kohei Yamanoi, Takayoshi Norimatsu, Yoshiki Nakata, Shigeki Tokita, Noriaki Miyanaga, Junji Kawanaka, Hiroyuki Shiraga, Kunioki Mima, Hiroaki Nishimura, Mathieu Bailly-Grandvaux, João Jorge Santos, Hideo Nagatomo, Hiroshi Azechi, Ryosuke Kodama, Yasunobu Arikawa, Yasuhiko Sentoku, Shinsuke Fujioka
Publikováno v:
Nature Communications, Vol 9, Iss 1, Pp 1-9 (2018)
It is desirable to deposit more energy in the dense plasma core to trigger the fusion ignition. Here the authors demonstrate enhanced energy coupling from laser to plasma core by using solid targets and guiding the transport of relativistic electron
Externí odkaz:
https://doaj.org/article/1aebef0589a84791be1e4b43c25ee400
Autor:
Yuto Minami, 'Kenichi Fushimi\\', 'Akihiro Hashimoto\\', 'Ryuta Hazama\\', 'Tasuku Hiraiwa\\', 'Takashi Iida\\', 'Yumiko Kishida\\', 'Tadafumi Kishimoto\\', 'Pantiwa Kumsut\\', 'Kenji Matsuoka\\', 'Noriaki Miyanaga\\', 'Go Miyoshi\\', 'Yoshiki Muramatsu\\', 'Kyohei Nakajima\\', 'Jun'ya Nakajima\\', 'Hideaki Niki\\', 'Yudai Niwa\\', 'Izumi Ogawa\\', 'Hironori Okuda\\', 'Anawat Rittirong\\', 'Toshiki Sakai\\', 'Akitoshi Sakaue\\', 'Kohtaku Suzuki\\', 'Yukichi Takihira\\', 'Yoichi Tamagawa\\', 'Shigeki Tokita\\', 'Masashi Tozawa\\', 'Masahiro Uemukai\\', 'Sei Yoshida\\', 'Atsushi Yoshioka\\', 'Ren Yuhaku\\'
Publikováno v:
Proceedings of 41st International Conference on High Energy physics — PoS(ICHEP2022).
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8101e08f4085b857b45d26577ee34dcf
https://doi.org/10.22323/1.414.1142
https://doi.org/10.22323/1.414.1142
Autor:
Takashi Sekine, Takashi Kurita, Yuma Hatano, Yuki Muramatsu, Masateru Kurata, Takaaki Morita, Takeshi Watari, Takuto Iguchi, Ryo Yoshimura, Yoshinori Tamaoki, Yasuki Takeuchi, Kazuki Kawai, Yujin Zheng, Yoshinori Kato, Norio Kurita, Toshiyuki Kawashima, Shigeki Tokita, Junji Kawanaka, Ryosuke Kodama
Publikováno v:
Optics express. 30(25)
A 253 J with 26 ns at 0.2 Hz laser performance was demonstrated using a LD pumped cryogenically cooled Yb:YAG ceramics laser amplifier. A high energy storage of 344 J was achieved with a stored energy density of 0.58 J/cm3 using a 1 kJ output multidi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0da4c4fd366f5a9785d07b0bff6a4bdd
https://pubmed.ncbi.nlm.nih.gov/36522864
https://pubmed.ncbi.nlm.nih.gov/36522864
Publikováno v:
Applied Physics Express. 16:052006
This work demonstrated the fusion splicing of plastic optical fibers (POFs) using a 2.8 μm continuous-wave fiber laser. This mid-IR laser-based fusion splicing technique does not require the use of adhesives or any other treatments. The performance
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f28b15321d13cefd22afb1f26431bb14
https://doi.org/10.35848/1882-0786/acd491
https://doi.org/10.35848/1882-0786/acd491
Autor:
Stuart Jackson, Shigeki Tokita, Mathew R. Majewski, Ori Henderson-Sapir, David J. Ottaway, Réal Vallée, Martin Bernier, Frédéric Maes
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0bfafb3b2395415ace50e019d6caf35b
https://doi.org/10.1016/b978-0-12-818017-4.00011-2
https://doi.org/10.1016/b978-0-12-818017-4.00011-2
Autor:
Jumpei Ogino, Koji Tsubakimoto, Hidetsugu Yoshida, Shinji Motokoshi, Noboru Morio, Keiko Matsumoto, Kana Fujioka, Shigeki Tokita, Noriaki Miyanaga, Ken-ichi Ueda, Ryousuke Kodama, Akifumi Yogo
Publikováno v:
Optica Advanced Photonics Congress 2022.
We report highest power conductive-cooled Yb:YAG active-mirror amplifier (CcAMA) delivering 1 kW average power in 10 J, 100 Hz.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::648bca23907578448f4ebccb5231059c
https://doi.org/10.1364/assl.2022.aw2a.2
https://doi.org/10.1364/assl.2022.aw2a.2
Publikováno v:
Optica Advanced Photonics Congress 2022.
We present a hybrid QCL/Fe:ZnSe amplifier for power scaling of a widely tunable, narrow-linewidth laser source at 3.8–4.1 μm. Additionally, single-frequency laser amplification with more than 210-mW output power using Fe:ZnSe is demonstrated.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fe1c8642d39300694474b55740f1ee8e
https://doi.org/10.1364/assl.2022.jtu6a.5
https://doi.org/10.1364/assl.2022.jtu6a.5