All-optical link for direct comparison of distant optical clocks
Fujieda, Miho, Kumagai, Motohiro, Nagano, Shigeo, Yamaguchi, Atsushi, Hachisu, Hidekazu, Ido, Tetsuya
Published in Optics express (15.08.2011)
Published in Optics express (15.08.2011)
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Journal Article
Direct comparison of a Ca+ single-ion clock against a Sr lattice clock to verify the absolute frequency measurement
Matsubara, Kensuke, Hachisu, Hidekazu, Li, Ying, Nagano, Shigeo, Locke, Clayton, Nogami, Asahiko, Kajita, Masatoshi, Hayasaka, Kazuhiro, Ido, Tetsuya, Hosokawa, Mizuhiko
Published in Optics express (24.09.2012)
Published in Optics express (24.09.2012)
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Journal Article
Stability Transfer between Two Clock Lasers Operating at Different Wavelengths for Absolute Frequency Measurement of Clock Transition in $^{87}$Sr
Yamaguchi, Atsushi, Shiga, Nobuyasu, Nagano, Shigeo, Li, Ying, Ishijima, Hiroshi, Hachisu, Hidekazu, Kumagai, Motohiro, Ido, Tetsuya
Published in Applied physics express (01.02.2012)
Published in Applied physics express (01.02.2012)
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Journal Article
Precise Evaluation of a Phase-Locked THz Quantum Cascade Laser
Irimajiri, Yoshihisa, Kumagai, Motohiro, Morohashi, Isao, Kawakami, Akira, Nagano, Shigeo, Sekine, Norihiko, Ochiai, Satoshi, Tanaka, Shukichi, Hanado, Yuko, Uzawa, Yoshinori, Hosako, Iwao
Published in IEEE transactions on terahertz science and technology (01.01.2016)
Published in IEEE transactions on terahertz science and technology (01.01.2016)
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Journal Article
Stability Transfer between Two Clock Lasers Operating at Different Wavelengths for Absolute Frequency Measurement of Clock Transition in 87Sr
Yamaguchi, Atsushi, Shiga, Nobuyasu, Nagano, Shigeo, Li, Ying, Ishijima, Hiroshi, Hachisu, Hidekazu, Kumagai, Motohiro, Ido, Tetsuya
Published in Applied physics express (25.02.2012)
Published in Applied physics express (25.02.2012)
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Journal Article
Stable radio frequency transfer in 114 km urban optical fiber link
Kumagai, Motohiro, Fujieda, Miho, Nagano, Shigeo, Hosokawa, Mizuhiko
Published in Optics letters (01.10.2009)
Published in Optics letters (01.10.2009)
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Journal Article
An Optical Frequency Standard with Single 40Ca+ Ions
MATSUBARA, Kensuke, LI, Ying, NAGANO, Shigeo, ITO, Hiroyuki, HOSOKAWA, Kazuhiro, NAGANO, Mizuhiko
Published in The Review of Laser Engineering (15.07.2010)
Published in The Review of Laser Engineering (15.07.2010)
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Journal Article
Coherent microwave transfer over a 204-km telecom fiber link by a cascaded system
Fujieda, M., Kumagai, M., Nagano, S.
Published in IEEE transactions on ultrasonics, ferroelectrics, and frequency control (01.01.2010)
Published in IEEE transactions on ultrasonics, ferroelectrics, and frequency control (01.01.2010)
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Journal Article
Conference Proceeding
Direct Comparison of Distant Optical Lattice Clocks at the $10^{-16}$ Uncertainty
Yamaguchi, Atsushi, Fujieda, Miho, Kumagai, Motohiro, Hachisu, Hidekazu, Nagano, Shigeo, Li, Ying, Ido, Tetsuya, Takano, Tetsushi, Takamoto, Masao, Katori, Hidetoshi
Published in Applied physics express (01.08.2011)
Published in Applied physics express (01.08.2011)
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Journal Article
Search for a stochastic background of 100-MHz gravitational waves with laser interferometers
Akutsu, Tomotada, Kawamura, Seiji, Nishizawa, Atsushi, Arai, Koji, Yamamoto, Kazuhiro, Tatsumi, Daisuke, Nagano, Shigeo, Nishida, Erina, Chiba, Takeshi, Takahashi, Ryuichi, Sugiyama, Naoshi, Fukushima, Mitsuhiro, Yamazaki, Toshitaka, Fujimoto, Masa-Katsu
Published in Physical review letters (05.09.2008)
Published in Physical review letters (05.09.2008)
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Journal Article
Dissemination of optical-comb-based ultra-broadband frequency reference through a fiber network
Nagano, Shigeo, Kumagai, Motohiro, Li, Ying, Ido, Tetsuya, Ishii, Shoken, Mizutani, Kohei, Aoki, Makoto, Otsuka, Ryohei, Hanado, Yuko
Published in Optics express (22.08.2016)
Published in Optics express (22.08.2016)
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Journal Article
Terahertz Frequency Counter with a Fractional Frequency Uncertainty at the $10^{-17}$ Level
Ito, Hiroyuki, Nagano, Shigeo, Kumagai, Motohiro, Kajita, Masatoshi, Hando, Yuko
Published in Applied physics express (01.10.2013)
Published in Applied physics express (01.10.2013)
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Journal Article
The Japanese space gravitational wave antenna—DECIGO
Kawamura, Seiji, Nakamura, Takashi, Ando, Masaki, Seto, Naoki, Tsubono, Kimio, Numata, Kenji, Takahashi, Ryuichi, Nagano, Shigeo, Ishikawa, Takehiko, Musha, Mitsuru, Ueda, Ken-ichi, Sato, Takashi, Hosokawa, Mizuhiko, Agatsuma, Kazuhiro, Akutsu, Tomotada, Aoyanagi, Koh-suke, Arai, Koji, Araya, Akito, Asada, Hideki, Aso, Yoichi, Chiba, Takeshi, Ebisuzaki, Toshikazu, Eriguchi, Yoshiharu, Fujimoto, Masa-Katsu, Fukushima, Mitsuhiro, Futamase, Toshifumi, Ganzu, Katsuhiko, Harada, Tomohiro, Hayama, Kazuhiro, Hikida, Wataru, Himemoto, Yoshiaki, Hirabayashi, Hisashi, Hiramatsu, Takashi, Ichiki, Kiyotomo, Ikegami, Takeshi, Inoue, Kaiki T, Ioka, Kunihito, Ishidoshiro, Koji, Itoh, Yousuke, Kamagasako, Shogo, Kawashima, Nobuki, Kirihara, Hiroyuki, Kiuchi, Kenta, Kobayashi, Shiho, Kohri, Kazunori, Kojima, Yasufumi, Kokeyama, Keiko, Kozai, Yoshihide, Kudoh, Hideaki, Kunimori, Hiroo, Kuroda, Kazuaki, Maeda, Kei-ichi, Matsuhara, Hideo, Mino, Yasushi, Miyakawa, Osamu, Miyoki, Shinji, Mizusawa, Hiromi, Morisawa, Toshiyuki, Mukohyama, Shinji, Naito, Isao, Nakagawa, Noriyasu, Nakamura, Kouji, Nakano, Hiroyuki, Nakao, Kenichi, Nishizawa, Atsushi, Niwa, Yoshito, Nozawa, Choetsu, Ohashi, Masatake, Ohishi, Naoko, Ohkawa, Masashi, Okutomi, Akira, Oohara, Kenichi, Sago, Norichika, Saijo, Motoyuki, Sakagami, Masaaki, Sakata, Shihori, Sasaki, Misao, Sato, Shuichi, Shibata, Masaru, Shinkai, Hisaaki, Somiya, Kentaro, Sotani, Hajime, Sugiyama, Naoshi, Tagoshi, Hideyuki, Takahashi, Tadayuki, Takahashi, Hirotaka, Takahashi, Ryutaro, Takano, Tadashi, Taniguchi, Keisuke, Taruya, Atsushi, Tashiro, Hiroyuki, Tokunari, Masao, Tsujikawa, Shinji, Tsunesada, Yoshiki, Yamamoto, Kazuhiro, Yamazaki, Toshitaka, Yokoyama, Jun'ichi, Yoo, Chul-Moon, Yoshida, Shijun, Yoshino, Taizoh
Published in Classical and quantum gravity (21.04.2006)
Published in Classical and quantum gravity (21.04.2006)
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Journal Article
Conference Proceeding
Terahertz wave generation and terahertz reference transfer
Kumagai, Motohiro, Nagano, Shigeo, Irimajiri, Yoshihisa, Morohashi, Isao, Ito, Hiroyuki, Hanado, Yuko, Hosako, Iwao
Published in 2014 39th International Conference on Infrared, Millimeter, and Terahertz waves (IRMMW-THz) (01.09.2014)
Published in 2014 39th International Conference on Infrared, Millimeter, and Terahertz waves (IRMMW-THz) (01.09.2014)
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Conference Proceeding