Zobrazeno 1 - 10
of 81
pro vyhledávání: '"Yasushi Hayakawa"'
Autor:
Norihiro Sei, Takeshi Sakai, Yasushi Hayakawa, Yoske Sumitomo, Kyoko Nogami, Toshinari Tanaka, Ken Hayakawa
Publikováno v:
Scientific Reports, Vol 11, Iss 1, Pp 1-11 (2021)
Abstract A coupling device, which can extract coherent edge radiation (CER) from an optical cavity for a free-electron laser (FEL) without damaging the FEL due to diffraction loss, was developed at Nihon University. We successfully observed the CER b
Externí odkaz:
https://doaj.org/article/f725251a047140bba03c5cff8bfa8d37
Autor:
Takayasu Kawasaki, Heishun Zen, Takeshi Sakai, Yoske Sumitomo, Kyoko Nogami, Ken Hayakawa, Toyonari Yaji, Toshiaki Ohta, Takashi Nagata, Yasushi Hayakawa
Publikováno v:
Polymers, Vol 14, Iss 12, p 2401 (2022)
Lignin monomers have attracted attention as functional materials for various industrial uses. However, it is challenging to obtain these monomers by degrading polymerized lignin due to the rigid ether linkage between the aromatic rings. Here, we prop
Externí odkaz:
https://doaj.org/article/457f48b4f44d46a5a1a41b32fd0b528d
Autor:
Yusuke Kawashima, Suemitsu Masaaki, Kayo Kuyama, Takeshi Sakai, Yasushi Hayakawa, Takashi Kaneda, Norihiro Sei
Publikováno v:
Applied Sciences, Vol 12, Iss 4, p 2229 (2022)
We investigated the transmission characteristics of formalin fixed human liver samples in which normal liver tissue and malignant liver tumor were mixed using terahertz (THz) coherent synchrotron radiation at an infrared free-electron laser (FEL) fac
Externí odkaz:
https://doaj.org/article/fba61c8801874c48874fa26d60be1820
Publikováno v:
Condensed Matter, Vol 5, Iss 2, p 34 (2020)
This study presents a novel technology to measure electron bunch length with a high time resolution by measuring coherent synchrotron radiation using a narrow-band detector at Laboratory for Electron Beam Research and Application (LEBRA)—an S-band
Externí odkaz:
https://doaj.org/article/095686a782d345bfa3317a0ee92b6cc0
Autor:
Fumio Shishikura, Heishun Zen, Ken Hayakawa, Yoshimasa Komatsuzaki, Yasushi Hayakawa, Takeshi Sakai, Kyoko Nogami, Yumiko Takahashi, Toshinari Tanaka, Toshiteru Kii, Hideaki Ohgaki
Publikováno v:
Journal of Nihon University Medical Association. 82:35-42
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::83d30a33294c73b8dba3d9936571787b
https://doi.org/10.4264/numa.82.1_35
https://doi.org/10.4264/numa.82.1_35
Autor:
Tetsuro Kono, Toshiro Sakae, Yumiko Takahashi, Takeshi Sakai, Kyoko Nogami, Ken Hayakawa, Arata Watanabe, Toshikazu Uchiyama, Yukie Takamura, Yuuya Togashi, Takahiro Ogawa, Toshinari Tanaka, Yasushi Hayakawa, Hiroyuki Okada
Publikováno v:
International Journal of Oral-Medical Sciences. 21:23-31
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1679cd65c67f4e92c0245591ca383a17
https://doi.org/10.5466/ijoms.21.23
https://doi.org/10.5466/ijoms.21.23
Autor:
Heishun Zen, Toyonari Yaji, Yoske Sumitomo, Ken Hayakawa, Yasushi Hayakawa, Toshiaki Ohta, Koichi Tsukiyama, Takeshi Sakai, Kyoko Nogami, Takayasu Kawasaki
Publikováno v:
Energy & Fuels. 34:9064-9068
We introduce a green approach to obtain glucose and low-molecular-weight saccharides directly from the cellulose aggregate by using near- and mid-infrared free electron lasers (IR-FELs). The IR-FEL...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fd3fca3bb307bb14f09c49232754f32a
https://doi.org/10.1021/acs.energyfuels.0c01069
https://doi.org/10.1021/acs.energyfuels.0c01069
Autor:
Yoske Sumitomo, Yasushi Hayakawa, Norihiro Sei, Toshinari Tanaka, Takeshi Sakai, Kyoko Nogami, Ken Hayakawa
Publikováno v:
Scientific Reports
Scientific Reports, Vol 11, Iss 1, Pp 1-11 (2021)
Scientific Reports, Vol 11, Iss 1, Pp 1-11 (2021)
A coupling device, which can extract coherent edge radiation (CER) from an optical cavity for a free-electron laser (FEL) without damaging the FEL due to diffraction loss, was developed at Nihon University. We successfully observed the CER beam with
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3920ebda23da3e1257414cd3bbdd085a
https://doi.org/10.1038/s41598-021-82898-7
https://doi.org/10.1038/s41598-021-82898-7
Autor:
Miho Shimada, Yoske Sumitomo, Heishun Zen, Ryoichi Hajima, Ryoji Nagai, Takeshi Sakai, Tsukasa Miyajima, Hideaki Ohgaki, Keigo Kawase, Yasushi Hayakawa
Publikováno v:
OSA High-brightness Sources and Light-driven Interactions Congress 2020 (EUVXRAY, HILAS, MICS).
A research program towards an attosecond photon source based on high-harmonic generation driven by mid-infrared FEL oscillators has been established. We present the scope and the current status of the research program.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1195b2979af2c3fd4e3ce60903739fd1
https://doi.org/10.1364/euvxray.2020.ef1a.4
https://doi.org/10.1364/euvxray.2020.ef1a.4
Autor:
Hideaki Ohgaki, Ken Hayakawa, Takeshi Sakai, Fumio Shishikura, Yoshimasa Komatsuzaki, Yasushi Hayakawa, Toshiteru Kii, Heishun Zen
Publikováno v:
Journal of Nihon University Medical Association. 77:159-164
Light perception is an intriguing subject, and it has been demonstrated that some animals can perceive wavelengths beyond human vision. However, it is still controversial whether animals can see mid-infrared radiation. A combination of two free-elect
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c9b5c938587a42bc532045d1b4e1df74
https://doi.org/10.4264/numa.77.3_159
https://doi.org/10.4264/numa.77.3_159