Zobrazeno 1 - 10
of 274
pro vyhledávání: '"Takeshi Higashiguchi"'
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-10 (2024)
Abstract Skyrmion structures play critical roles in solid-state systems involving electric, magnetic and optical fields. Previous approaches to the study of skyrmions have involved specific structures in magnetic materials, liquid crystals and polyme
Externí odkaz:
https://doaj.org/article/b65445c5b7224c518f439bee1325a7fd
Autor:
Jiahao Wang, Maki Kishimoto, Tomoyuki Johzaki, Kairi Mizushima, Chihiro Kumeda, Takeshi Higashiguchi, Atsushi Sunahara, Hikari Ohiro, Kotaro Yamasaki, Shinichi Namba
Publikováno v:
Atoms, Vol 10, Iss 4, p 150 (2022)
Highly charged ions in the plasma produced by high-power laser can radiate bright and short-pulse X-rays. Owing to the unresolved transition array (UTA) from the high-Z elements, laser produced plasma has been applied for developing X-ray sources. In
Externí odkaz:
https://doaj.org/article/f5fb313f7cf64f4fb3744d0d75e60a74
Autor:
Shinichi Namba, Jiahao Wang, Hikari Ohiro, Jiawei Zhang, Maki Kishimoto, Kotaro Yamasaki, Noboru Hasegawa, Thanhhung Dinh, Masahiko Ishino, Takeshi Higashiguchi, Masaharu Nishikino
Publikováno v:
Atoms, Vol 10, Iss 4, p 128 (2022)
A recombination plasma soft X-ray laser that is associated with Li-like Aluminum ion Al10+ 3d-4f transition (wavelength: 15.47 nm) was investigated to increase the gain coefficient. By optimizing the time interval of the 16-pulse train, higher-densit
Externí odkaz:
https://doaj.org/article/eefea856e3f941f695b02de35bcf3bfe
Autor:
Hiromu Kawasaki, Atsushi Sunahara, Yuta Shimada, Takeo Ejima, Weihua Jiang, Gerry O’Sullivan, Masaharu Nishikino, Shinichi Namba, Takeshi Higashiguchi
Publikováno v:
AIP Advances, Vol 10, Iss 6, Pp 065306-065306-6 (2020)
We achieved a relative optically thin state in laser-produced heavy element plasmas at determined electron temperatures, which has been predicted by power balance and collisional-radiative models. We also mapped the power-loss processes in sub-nanose
Externí odkaz:
https://doaj.org/article/74c8d6def543494db0d97693dd326bf6
Autor:
Yuta Shimada, Hiromu Kawasaki, Kanon Watanabe, Hiroyuki Hara, Kyoya Anraku, Misaki Shoji, Toru Oba, Masaru Matsuda, Weihua Jiang, Atsushi Sunahara, Masaharu Nishikino, Shinichi Namba, Gerry O’Sullivan, Takeshi Higashiguchi
Publikováno v:
AIP Advances, Vol 9, Iss 11, Pp 115315-115315-6 (2019)
The extension of the roadmap of shorter wavelength extreme ultraviolet and soft x-ray sources is a topic of considerable interest. We have studied the optimized emission from high power and/or high brightness sources based on unresolved transition ar
Externí odkaz:
https://doaj.org/article/9df1cff1874842e0a6d99ecace53145d
Autor:
Hiroyuki Hara, Hayato Ohashi, Bowen Li, Padraig Dunne, Gerry O’Sullivan, Akira Sasaki, Chihiro Suzuki, Naoki Tamura, Hiroyuki A. Sakaue, Daiji Kato, Izumi Murakami, Takeshi Higashiguchi, LHD Experiment Group
Publikováno v:
APL Photonics, Vol 2, Iss 8, Pp 081301-081301-7 (2017)
The soft x-ray spectra of heavy element plasmas are frequently dominated by unresolved transition array (UTA) emission. We describe the spectral evolution of an intense UTA under optically thin conditions in platinum plasmas. The UTA was observed t
Externí odkaz:
https://doaj.org/article/4e015e781e624587bfcf495cc02d438f
Autor:
Tatsunori, Shibuya, Kazuyuki, Sakaue, Hiroshi, Ogawa, Daisuke, Satoh, Dinh, Thanhhung, Masahiko, Ishino, Masahito, Tanaka, Masakazu, Washio, Takeshi, Higashiguchi, Masaharu, Nishikino, Akira, Kon, Yuya, Kubota, Yuichi, Inubushi, Shigeki, Owada, Yohei, Kobayashi, Ryunosuke, Kuroda
Publikováno v:
Optics Express. 29(21):33121-33133
Although laser irradiation with femtosecond pulses is known to generate crystallization and morphological changes, the contribution of optical parameters to material changes is still in discussion. Here, we compare two structures irradiated near Si
Autor:
Yuya Koshiba, Junji Urakawa, Masakazu Washio, Kazuyuki Sakaue, Ryosuke Morita, Koki Yamashita, Takeshi Higashiguchi
Publikováno v:
International Journal of Radiation Biology. 99:77-81
Monochromatic hard X-rays with high brightness are desired for medical applications including Auger therapy. One can generate such X-rays through laser-Compton scattering (LCS) by allowing photons from a compact laser system to interact with electron
Autor:
Yuichi Inubushi, Thanh-Hung Dinh, Takeshi Higashiguchi, Masaharu Nishikino, Masakazu Washio, Ryunosuke Kuroda, Shigeki Owada, Yohei Kobayashi, Masahito Tanaka, Kazuyuki Sakaue, Daisuke Satoh, Masahiko Ishino, Tatsunori Shibuya, Hiroshi Ogawa, Akira Kon, Yuya Kubota
Publikováno v:
Optics express. 29(21)
Although laser irradiation with femtosecond pulses is known to generate crystallization and morphological changes, the contribution of optical parameters to material changes is still in discussion. Here, we compare two structures irradiated near Si
Publikováno v:
Photomask Japan 2021: XXVII Symposium on Photomask and Next-Generation Lithography Mask Technology.
We evaluated the charge-separated spectra of highly charged suprathermal gadolinium (Gd) ions from a 1064-nm, nanosecond laser-produced plasma (LPP) extreme ultraviolet (EUV) source developed for beyond EUV (BEUV) lithography. The charge distribution