Zobrazeno 1 - 10
of 23
pro vyhledávání: '"Shigeyuki Sekiguchi"'
Autor:
Tom Nitta, Shigeyuki Sekiguchi, Agnes Dominjon, Takashi Noguchi, Yutaro Sekimoto, Shibo Shu, Wenlei Shan, Matthias Kroug
Publikováno v:
Journal of Low Temperature Physics. 194:404-411
The Advanced Technology Centre (ATC) of National Astronomical Observatory of Japan is developing microwave kinetic inductance detectors (MKIDs) for large-array pixel cameras for millimeter and sub-millimeter astronomy. We investigated single-crystal
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b795802ee11543139463ab321ffca7fa
https://doi.org/10.1007/s10909-018-2101-2
https://doi.org/10.1007/s10909-018-2101-2
Autor:
Hiroshi Matsuo, Masato Naruse, Kazufusa Noda, Yutaro Sekimoto, Tom Nitta, Shibo Shu, Shigeyuki Sekiguchi, Nario Kuno, Agnes Dominjon, Naomasa Nakai
Publikováno v:
IEEE Transactions on Terahertz Science and Technology. 7:295-301
A broadband antireflective subwavelength structure was developed suitable for large diameter silicon or alumina lenses used in the optical systems of superconducting cameras. In this study, a broadband antireflective subwavelength structure that can
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::506e8375db26cba6d4e4ca0355101d77
https://doi.org/10.1109/tthz.2017.2692045
https://doi.org/10.1109/tthz.2017.2692045
Autor:
Shibo Shu, T. Yamashita, Masato Naruse, Takashi Noguchi, Shigeyuki Sekiguchi, Masashi Hazumi, Masakazu Sekine, Agnes Dominjon, Kenichi Karatsu, N. Oka, Tomotake Matsumura, Tom Nitta, Yasuhiro Yamada, Yutaro Sekimoto, K. Mizukami, T. Funaki, T. Fujino, Hirokazu Ishino, F. Irie, Y. Kida
Publikováno v:
Journal of Low Temperature Physics. 184:540-546
著者人数: 20名
Accepted: 2016-01-21
資料番号: SA1160044000
Accepted: 2016-01-21
資料番号: SA1160044000
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::26a1eed034bcfda8f7bad581b126d600
https://doi.org/10.1007/s10909-016-1523-y
https://doi.org/10.1007/s10909-016-1523-y
Autor:
Shigeyuki Sekiguchi, M. Sugimoto, Tom Nitta, Kenji Mitsui, Shibo Shu, K. Kubo, T. Takahashi, Norio Okada, T. Nishino, Yutaro Sekimoto
Publikováno v:
IEEE Transactions on Terahertz Science and Technology. :1-6
We have developed a broadband corrugated horn in the 120–270 GHz and a horn array in the 80–180 GHz bands. The geometry of corrugations is so simple that the horn array can be directly machined from a bulk of aluminum with an end mill. The cross
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f0cc9b0f4aa8d01da6f9373bc2f1b5c3
https://doi.org/10.1109/tthz.2016.2634321
https://doi.org/10.1109/tthz.2016.2634321
Autor:
Hiroaki Myoren, Shigeyuki Sekiguchi, Masato Naruse, Kenichi Karatsu, Yutaro Sekimoto, Tom Nitta, Msakazu Sekine, Tohru Taino, Takashi Noguchi
Publikováno v:
Journal of Infrared, Millimeter, and Terahertz Waves. 37:128-136
We propose an entirely plane-structure camera for millimeter wave astronomy, in order to reduce production cost and time. The camera is composed of a silicon lens-let, antennas, feed lines, and detectors made from the same superconducting aluminum fi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c3daa36dd80dfda73bf86830a34223ef
https://doi.org/10.1007/s10762-015-0216-y
https://doi.org/10.1007/s10762-015-0216-y
Autor:
H. Ishitsuka, Kenta Takahashi, N. Tomita, K. Koga, Hiroki Watanabe, Chiko Otani, Shigeyuki Sekiguchi, Agnes Dominjon, Shibo Shu, R. M. Thushara Damayanthi, Mitsuhiro Yoshida, A. Kibayashi, Jihoon Choi, Y. Kibe, Osamu Tajima, Masakazu Sekine, Hitoshi Kiuchi, Tom Nitta, Kenichi Karatsu, Satoru Mima, Yutaro Sekimoto, Takashi Okada, Shugo Oguri, Takashi Noguchi, N. Furukawa, Hirokazu Ishino, Masato Naruse
Publikováno v:
IEICE Transactions on Electronics. :207-218
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::48f8b9a52e8bf5bbe70f0aabfab7752a
https://doi.org/10.1587/transele.e98.c.207
https://doi.org/10.1587/transele.e98.c.207
Autor:
S. Shu, Nario Kuno, Y. Murayama, Yutaro Sekimoto, Shigeyuki Sekiguchi, Tom Nitta, Wenlei Shan, Agnes Dominjon, S. Hattori, Naomasa Nakai, Takashi Noguchi, Makoto Nagai
Publikováno v:
2017 16th International Superconductive Electronics Conference (ISEC).
The Advanced Technology Center (ATC) of NAOJ is developing a millimeter-wave camera with Microwave Kinetic Inductance Detectors (MKID) for wide field of view observations. We made a prototype array for the 45m telescope of Nobeyama Radio Observatory,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::616df2866ff986bff4fe7f3bac63e3ed
https://doi.org/10.1109/isec.2017.8314192
https://doi.org/10.1109/isec.2017.8314192
Autor:
Masakazu Sekine, Shigeyuki Sekiguchi, Kenichi Karatsu, Masato Naruse, Yutaro Sekimoto, Yoshinori Uzawa, Hitoshi Kiuchi, Tom Nitta, Hiroshi Matsuo, Takashi Noguchi
Publikováno v:
Journal of Low Temperature Physics. 176:459-464
Microwave kinetic inductance detectors (MKIDs) are being developed at the National Astronomical Observatory of Japan to enable precise measurements of the cosmic microwave background. One of the features of MKIDs is scalability using a frequency-divi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::16b6fb0c66d492c8bb157465985436af
https://doi.org/10.1007/s10909-014-1115-7
https://doi.org/10.1007/s10909-014-1115-7
Autor:
Kenji Mitsui, Tom Nitta, Masato Naruse, Norio Okada, Masumichi Seta, Yutaro Sekimoto, Shigeyuki Sekiguchi, Naomasa Nakai, Masakazu Sekine, Takashi Noguchi, Hiroshi Matsuo, Kenichi Karatsu
Publikováno v:
Journal of Low Temperature Physics. 176:677-683
A dielectric lens with high refractive index is suitable for focusing cryogenic devices in millimeter-wave bands when an appropriate anti-reflection (AR) coating is applied. Two types of AR coatings for silicon and alumina were studied at the millime
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a4ea658d73f597cdf3c0dee3bbecda2f
https://doi.org/10.1007/s10909-013-1059-3
https://doi.org/10.1007/s10909-013-1059-3
Autor:
Hiroshi Matsuo, Takashi Okada, Masakazu Sekine, Shibo Shu, Norio Okada, Kenichi Karatsu, Tom Nitta, Takashi Noguchi, Masato Naruse, Toshihiro Tsuzuki, Shingo Kashima, Agnes Dominjon, Yutaro Sekimoto, Shigeyuki Sekiguchi
Publikováno v:
IEEE Transactions on Terahertz Science and Technology. :1-8
We have developed an optics for 220 GHz observations, which is a compact cold re-imaging one from a telescope focal plane, with ${F}/\# = 6$ to a detector plane with ${F}/\# = 1$ at 100 mK. It employs two high refractive lenses, high purity alumina $
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d39f740eca155d856251e3f82be0580d
https://doi.org/10.1109/tthz.2014.2367245
https://doi.org/10.1109/tthz.2014.2367245