Journal


2016

TitleGeopotential measurements with synchronously linked optical lattice clocks
AuthorTetsushi Takano, Masao Takamoto, Ichiro Ushijima, Noriaki Ohmae, Tomoya Akatsuka, Atsushi Yamaguchi, Yuki Kuroishi, Hiroshi Munekane, Basara Miyashita and Hidetoshi Katori
JournalNat. Photon.(2016) 【PRESS5】
Date2016/8/16
TitleFrequency ratio of Yb and Sr clocks with 5×10-17 uncertainty at 150 seconds averaging time
AuthorNils Nemitz, Takuya Ohkubo, Masao Takamoto, Ichiro Ushijima, Manoj Das, Noriaki Ohmae and Hidetoshi Katori,
JournalNat. Photon., 10 258-261 (2016) 【PRESS4】
Date2016/2/29
TitleContinuous-wave, single-frequency 229 nm laser source for laser cooling of cadmium atoms
AuthorYushi Kaneda, J. M. Yarborough, Yevgeny Merzlyak, Atsushi Yamaguchi, Keitaro Hayashida, Noriaki Ohmae, Hidetoshi Katori
JournalOpt. Lett., 41,705 (2016)
Date2016/2/5

2015

TitleCompact field programmable gate array-based pulse-sequencer and radio-frequency generator for experiments with trapped atoms
AuthorThaned Pruttivarasin, Hidetoshi Katori:
JournalRev. Sci. Instrum., 86, 115106(2015)
Date2015/11/13
TitleFrequency ratios of Sr, Yb, and Hg based optical lattice clocks and their applications
AuthorMasao Takamoto, Ichiro Ushijima, Manoj Das, Nils Nemitz, Takuya Ohkubo, Kazuhiro Yamanaka, Noriaki Ohmae, Tetsushi Takano, Tomoya Akatsuka, Atsushi Yamaguchi, Hidetoshi Katori
JournalC. R. Physique 16, 489-498 (2015)
Date2015/6
TitleFrequency Ratio of 199Hg and 87Sr Optical Lattice Clocks beyond the SI Limit
AuthorKazuhiro Yamanaka, Noriaki Ohmae, Ichiro Ushijima, Masao Takamoto, and Hidetoshi Katori
JournalPhys. Rev. Lett. 114,230801 (2015) [PRESS3]
Date2015/5
TitleStrategies for reducing the light shift in atomic clocks
AuthorHidetoshi Katori, V. D. Ovsiannikov, S. I. Marmo, and V. G. Palchikov
JournalPhys. Rev. A, Vol.91, 52503 (2015)
Date2015/5
TitleOptical clock sensitive to variations of the fine-structure constant based on the Ho14+ ion
AuthorV.A. Dzuba, V.V. Flambaum,and Hidetoshi Katori
JournalPhys. Rev. A, 91(2),022119 (2015)
Date2015/2
TitleCryogenic optical lattice clocks
AuthorIchiro Ushijima, Masao Takamoto, Manoj Das, Takuya Ohkubo, Hidetoshi Katori
JournalNature Photon.,9, 185 (2015) [PRESS2]
Date2015/2

2014

TitleLamb-Dicke spectroscopy of atoms in a hollow-core photonic crystal fibre
AuthorShoichi Okaba,Tetsushi Takano, Fetah Benabid,Tom Bradley, Luca Vincetti, Zakhar Maizelis, Valery Yampol'skii,Franco Nori, Hidetoshi Katori
JournalNature Communications 5, 4096 (2014)  [PRESS1]
Date2014/6
Title30-km-long optical fiber link at 1397 nm for frequency comparison between distant strontium optical lattice clocks
AuthorTomoya Akatsuka, Hitomi Ono, Keitaro Hayashida, Kuniya Araki, Masao Takamoto, Tetsushi Takano, Hidetoshi Katori
JournalJpn. J. Appl. Phys. 53, 032801 (2014)
Date2014/2

2013

TitleMultipole, nonlinear, and anharmonic uncertainties of clocks of Sr atoms in an optical lattice.
AuthorV. D. Ovsiannikov, V. G. Pal'chikov, A. V. Taichenachev, V. I. Yudin, Hidetoshi Katori
JournalPhys. Rev. A 88, 013405 (2013)
Date2013/7

2012

TitleProspects for frequency comparison of Sr and Hg optical lattice clocks toward 10-18 uncertainties
AuthorH. Katori, M. Takamoto, T. Takano, I. Ushijima, T. Ohkubo, K. Yamanaka, N. Ohmae, Y. Aso, A. Shoda, T. Ushiba, P. Thoumany, M, Das, B. T. R. Christensen, T. Akatsuka
JournalProc. IEEE Int Freq Control Symp. ,56-61 (2012)
Date2012/9

2011

TitleDirect Comparison of Distant Optical Lattice Clocks at the 10-16 Uncertainty
AuthorAtushi Yamaguchi, Miho Fujieda, Motohiro Kumagai, Hidekazu Hachisu, Shigeo Nagano, Ying Li, Tetsuya Ido, Tetsushi Takano, Masao Takamoto, Hidetoshi Katori
JournalAppl. Phys. Exp. 4, 082203 (2011)
Date2011/8
TitleFrequency comparison of optical lattice clocks beyond the Dick limit
AuthorMasao Takamoto, Tetsushi Takano,Hidetoshi Katori
JournalNature Photon.5, 288-292 (2011)
Date2011/4
TitleOptical lattice clocks and quantum metrology
AuthorHidetoshi Katori
JournalNature Photon.5, 203-210 (2011)
Date2011/3

This project has been jointly implemented with the following institutions:

The University of Tokyo
Japan Science and Technology Agency
RIKEN