Test of general relativity by a pair of transportable optical lattice clocks
Takamoto, Masao, Ushijima, Ichiro, Ohmae, Noriaki, Yahagi, Toshihiro, Kokado, Kensuke, Shinkai, Hisaaki, Katori, Hidetoshi
Published in Nature photonics (01.07.2020)
Published in Nature photonics (01.07.2020)
Get full text
Journal Article
Cryogenic optical lattice clocks
Ushijima, Ichiro, Takamoto, Masao, Das, Manoj, Ohkubo, Takuya, Katori, Hidetoshi
Published in Nature photonics (09.02.2015)
Published in Nature photonics (09.02.2015)
Get full text
Journal Article
Operational Magic Intensity for Sr Optical Lattice Clocks
Ushijima, Ichiro, Takamoto, Masao, Katori, Hidetoshi
Published in Physical review letters (28.12.2018)
Published in Physical review letters (28.12.2018)
Get more information
Journal Article
Transportable Strontium Optical Lattice Clocks Operated Outside Laboratory at the Level of 10−18 Uncertainty
Ohmae, Noriaki, Takamoto, Masao, Takahashi, Yosuke, Kokubun, Motohide, Araki, Kuniya, Hinton, Andrew, Ushijima, Ichiro, Muramatsu, Takashi, Furumiya, Tetsuo, Sakai, Yuya, Moriya, Naoji, Kamiya, Naohiro, Fujii, Kazuaki, Muramatsu, Ryuya, Shiimado, Toshihiro, Katori, Hidetoshi
Published in Advanced quantum technologies (Online) (01.08.2021)
Published in Advanced quantum technologies (Online) (01.08.2021)
Get full text
Journal Article
Geopotential measurements with synchronously linked optical lattice clocks
Takano, Tetsushi, Takamoto, Masao, Ushijima, Ichiro, Ohmae, Noriaki, Akatsuka, Tomoya, Yamaguchi, Atsushi, Kuroishi, Yuki, Munekane, Hiroshi, Miyahara, Basara, Katori, Hidetoshi
Published in Nature photonics (01.10.2016)
Published in Nature photonics (01.10.2016)
Get full text
Journal Article
Optical frequency distribution using laser repeater stations with planar lightwave circuits
Akatsuka, Tomoya, Goh, Takashi, Imai, Hiromitsu, Oguri, Katsuya, Ishizawa, Atsushi, Ushijima, Ichiro, Ohmae, Noriaki, Takamoto, Masao, Katori, Hidetoshi, Hashimoto, Toshikazu, Gotoh, Hideki, Sogawa, Tetsuomi
Published in Optics express (30.03.2020)
Published in Optics express (30.03.2020)
Get full text
Journal Article
Frequency ratios of Sr, Yb, and Hg based optical lattice clocks and their applications
Takamoto, Masao, Ushijima, Ichiro, Das, Manoj, Nemitz, Nils, Ohkubo, Takuya, Yamanaka, Kazuhiro, Ohmae, Noriaki, Takano, Tetsushi, Akatsuka, Tomoya, Yamaguchi, Atsushi, Katori, Hidetoshi
Published in Comptes rendus. Physique (01.06.2015)
Published in Comptes rendus. Physique (01.06.2015)
Get full text
Journal Article
Frequency ratio of Yb and Sr clocks with 510 super(-17) uncertainty at 150seconds averaging time
Nemitz, Nils, Ohkubo, Takuya, Takamoto, Masao, Ushijima, Ichiro, Das, Manoj, Ohmae, Noriaki, Katori, Hidetoshi
Published in Nature photonics (01.04.2016)
Published in Nature photonics (01.04.2016)
Get full text
Journal Article
Frequency ratio of Yb and Sr clocks with 5 × 10−17 uncertainty at 150 seconds averaging time
Nemitz, Nils, Ohkubo, Takuya, Takamoto, Masao, Ushijima, Ichiro, Das, Manoj, Ohmae, Noriaki, Katori, Hidetoshi
Published in Nature photonics (29.02.2016)
Published in Nature photonics (29.02.2016)
Get full text
Journal Article
RADIATION SHIELD AND OPTICAL GRATING WATCH USING THEM
KATORI HIDETOSHI, TAWARA TAKENOBU, YOKOTA HIDEO, TAKAMOTO MASAO, USHIJIMA ICHIRO
Year of Publication 01.08.2019
Get full text
Year of Publication 01.08.2019
Patent
Transmission characteristics of DFB laser modules for analog applications
Yonetani, Haruo, Ushijima, Ichiro, Takada, Toshihiro, Shima, Katsuhito
Published in Journal of lightwave technology (01.01.1993)
Published in Journal of lightwave technology (01.01.1993)
Get full text
Journal Article
Frequency Ratio of (199)Hg and (87)Sr Optical Lattice Clocks beyond the SI Limit
Yamanaka, Kazuhiro, Ohmae, Noriaki, Ushijima, Ichiro, Takamoto, Masao, Katori, Hidetoshi
Published in Physical review letters (12.06.2015)
Get more information
Published in Physical review letters (12.06.2015)
Journal Article
Optical clock distribution over stable fiber links in noisy environments
Akatsuka, Tomoya, Imai, Hiromitsu, Takamoto, Masao, Ushijima, Ichiro, Goh, Takashi, Hashimoto, Toshikazu, Katori, Hidetoshi, Oguri, Katsuya, Sogawa, Tetsuomi
Published in 2023 Optical Fiber Communications Conference and Exhibition (OFC) (01.03.2023)
Published in 2023 Optical Fiber Communications Conference and Exhibition (OFC) (01.03.2023)
Get full text
Conference Proceeding
Radiation shield and optical lattice clock including radiation shield
Takamoto, Masao, Katori, Hidetoshi, Ushijima, Ichiro, Tawara, Takehiro, Yokota, Hideo
Year of Publication 08.11.2022
Get full text
Year of Publication 08.11.2022
Patent
Deformation of V-grooves on InP substrate by heat treatment
Tanahashi, Toshiyuki, Ushijima, Ichiro, Umebu, Itsuo, Nakai, Sabro, Nishitani, Yorimitsu, Akita, Kenzo
Published in Journal of crystal growth (01.12.1983)
Published in Journal of crystal growth (01.12.1983)
Get full text
Journal Article
RADIATION SHIELD AND OPTICAL LATTICE CLOCK INCLUDING RADIATION SHIELD
KATORI, HIDETOSHI, USHIJIMA, ICHIRO, YOKOTA, HIDEO, TAWARA, TAKEHIRO, TAKAMOTO, MASAO
Year of Publication 24.01.2022
Get full text
Year of Publication 24.01.2022
Patent
RADIATION SHIELD AND OPTICAL LATTICE CLOCK INCLUDING RADIATION SHIELD
YOKOTA, Hideo, TAWARA, Takehiro, KATORI, Hidetoshi, USHIJIMA, Ichiro, TAKAMOTO, Masao
Year of Publication 08.09.2021
Get full text
Year of Publication 08.09.2021
Patent
RADIATION SHIELD AND OPTICAL LATTICE CLOCK INCLUDING RADIATION SHIELD
YOKOTA, Hideo, TAWARA, Takehiro, KATORI, Hidetoshi, USHIJIMA, Ichiro, TAKAMOTO, Masao
Year of Publication 25.07.2019
Get full text
Year of Publication 25.07.2019
Patent