2025
Hisaaki Shinkai, Masao Takamoto, and Hidetoshi Katori, Transportable optical lattice clocks and general relativity, International Journal of Modern Physics D, Vol. 34, No. 03, 2540012 (2025)
2024
A. Yamaguchi, Y. Shigekawa, H. Haba, H. Kikunaga, K. Shirasaki, M. Wada, and H. Katori, Laser spectroscopy of triply charged (229)Th isomer for a nuclear clock, Nature 629, 62
Shoichi Okaba, Ryoto Takeuchi, Shigenori Tsuji and Hidetoshi Katori, "Continuous generation of an ultracold atomic beam using crossed moving optical lattices", Physical Review Applied 21, 034006, Published 5 March 2024, DOI Number: 10.1103/PhysRevApplied.21.034006
2023
Ryoto Takeuchi, Hayaki Chiba, Shoichi Okaba, Masao Takamoto, Shigenori Tsuji and Hidetoshi Katori, Continuous outcoupling of ultracold strontium atoms combining three different traps, The Japan Society of Applied Physics. DOI Number: 10.35848/1882-0786/accb3c.
2022
M. Takamoto, Y. Tanaka & Hidetoshi Katori, A perspective on the future of transportable optical lattice clocks, Appl. Phys. Lett. 120, 140502 (2022). DOI Number: 10.1063/5.0087894
2021
Y. Tanaka, H. Katori, Exploring potential applications of optical lattice clocks in a plate subduction zone, J. Geod., 95, 93 (2021).
N. Ohmae, M. Takamoto, Y. Takahashi, M. Kokubun, K. Araki, A. Hinton, I. Ushijima, T. Muramatsu, T. Furumiya, Y. Sakai, N. Moriya, N. Kamiya, K. Fujii, R. Muramatsu, T. Shiimado, H. Katori, Transportable Strontium Optical Lattice Clocks Operated Outside Laboratory at the Level of 10−18 Uncertainty, Adv. Quant. Tech., 4, 2100015 (2021).
H. Katori, Longitudinal Ramsey spectroscopy of atoms for continuous operation of optical clocks. Appl. Phys. Express. 14, 072006 (2021).
T. Akatsuka, K. Hashiguchi, T. Takahashi, N. Ohmae, M. Takamoto and H. Katori, Three-stage laser cooling of Sr atoms using the 5s5p 3P2 metastable state below Doppler temperatures. Phys. Rev. A 103, 023331 (2021).
2020
M. Takamoto, I. Ushijima, N. Ohmae, T. Yahagi, K. Kokado, H. Shinkai, and H. Katori, Test of general relativity by a pair of transportable optical lattice clocks, Nat. Photon. 14, 411 (2020).
N. Ohmae, F. Bregolin, N. Nemitz, and H. Katori, Direct measurement of the frequency ratio for Hg and Yb optical lattice clocks and closure of the Hg/Yb/Sr loop, Optics Express 28, 15112 (2020).
T. Ebisuzaki, H. Katori, J. i. Makino, A. Noda, H. Shinkai, and T. Tamagawa, INO: Interplanetary network of optical lattice clocks, Int. Jour. Mod. Phys. D 29, 1940002 (2020).
T. Akatsuka, T. Goh, H. Imai, K. Oguri, A. Ishizawa, I. Ushijima, N. Ohmae, M. Takamoto, H. Katori, T. Hashimoto, H. Gotoh, and T. Sogawa, Optical frequency distribution using laser repeater stations with planar lightwave circuits, Optics Express 28, 9186 (2020).
2019
S. Okaba, D. Yu, L. Vincetti, F. Benabid, and H. Katori, Superradiance from lattice-confined atoms inside hollow core fibre, Commun. Phys., 2, 136 (2019).
G. M. Tino, A. Bassi, G. Bianco, K. Bongs, P. Bouyer, L. Cacciapuoti, S. Capozziello, X. Chen, M. L. Chiofalo, A. Derevianko, W. Ertmer, N. Gaaloul, P. Gill, P. W. Graham, J. M. Hogan, L. Iess, M. A. Kasevich, H. Katori, C. Klempt, X. Lu, L.-S. Ma, H. Müller, N. R. Newbury, C. W. Oates, A. Peters, N. Poli, E. M. Rasel, G. Rosi, A. Roura, C. Salomon, S. Schiller, W. Schleich, D. Schlippert, F. Schreck, C. Schubert, F. Sorrentino, U. Sterr, J. W. Thomsen, G. Vallone, F. Vetrano, P. Villoresi, W. von Klitzing, D. Wilkowski, P. Wolf, J. Ye, N. Yu, and M. Zhan, SAGE: A proposal for a space atomic gravity explorer, Eur. Phys. J. D 73, 228 (2019).
N. Kimura, R. Kodama, K. Suzuki, S. Oishi, M. Wada, K. Okada, N. Ohmae, H. Katori, and N. Nakamura, Direct determination of the energy of the first excited fine-structure level in Ba6+, Phys. Rev. A 100, 052508 (2019).
K. Hashiguchi, T. Akatsuka, N. Ohmae, M. Takamoto, and H. Katori, Frequency measurement on the 5s5p 3P2-5s4d 3D3 transition of 88Sr atoms using the photon-momentum-transfer technique, Phys. Rev. A 100, 042513 (2019).
A. Yamaguchi, M. S. Safronova, K. Gibble, H. Katori, Narrow-line Cooling and Determination of the Magic Wavelength of Cd, Phys. Rev. Lett. 123, 113201 (2019).
N. Ohmae, H. Katori, 626-nm single-frequency semiconductor laser system operated near room temperature for mW-level second-harmonic generation at 313 nm, Rev. Sci. Instrum. 90, 063201 (2019).
N. Ohmae, S. Sakama, H. Katori, High-stability optical frequency transfer with all-fiber architecture for optical lattice clocks, Electro Commun. Jpn., 102, 43-48 (2019).
N. Nemitz, A. A. Jørgensen, R. Yanagimoto, F. Bregolin, and H. Katori, Modeling light shifts in optical lattice clocks, Phys. Rev. A 99, 033424 (2019).
2018
Ichiro Ushijima, Masao Takamoto, and Hidetoshi Katori, Operational Magic Intensity for Sr Optical Lattice Clocks, Phys. Rev. Lett. 121, 263202-1-5 (2018).
R. Yanagimoto, N. Nemitz, F. Bregolin, and H. Katori, Decomposed description of Ramsey spectra under atomic interactions, Phys. Rev. A 98, 012704 (2018).
2017
Tomoya Akatsuka, Tadahiro Takahashi, and Hidetoshi Katori, Optically guided atom interferometer tuned to magic wavelength, Appl. Phys. Exp. 10, 112501-1-4 (2017). 【APEX Spotlights】
Tetsushi Takano, Ray Mizushima, and Hidetoshi Katori, Precise determination of the isotope shift of 88Sr-87Sr optical lattice clock by sharing perturbations, Appl. Phys. Exp. 10, 089201-1-4 (2017). 【APEX Spotlights】
Noriaki Ohmae, Naoya Kuse, Martin E. Fermann, and Hidetoshi Katori, All-polarization-maintaining, single-port Er:fiber comb for high-stability comparison of optical lattice clocks, Appl. Phys. Exp. 10, 062503-1-4 (2017).
T. Nakajima, K. Okada, M. Wada, V. A. Dzuba, M. S. Safronova, U. I. Safronova, N. Ohmae, H. Katori, and N. Nakamura, Visible spectra of highly charged holmium ions observed with a compact electron beam ion trap, Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms 408, 118 (2017).
Hidetoshi Katori, Tricks for ticks, Nat. Phys. 13, 414 (2017).
2016
Tetsushi Takano, Masao Takamoto, Ichiro Ushijima, Noriaki Ohmae, Tomoya Akatsuka, Atsushi Yamaguchi, Yuki Kuroishi, Hiroshi Munekane, Basara Miyahara, and Hidetoshi Katori, Geopotential measurements with synchronously linked optical lattice clocks, Nat. Photon. 10, 662-666 (2016). Nat. Photon., Vol.10, 662-666 (2016)
V. D. Ovsiannikov, S. I. Marmo, V. G. Palchikov, and H. Katori, Higher-order effects on the precision of clocks of neutral atoms in optical lattices, Phys. Rev. A 93, 043420 (2016).
Nils Nemitz, Takuya Ohkubo, Masao Takamoto, Ichiro Ushijima, Manoj Das, Noriaki Ohmae and Hidetoshi Katori, Frequency ratio of Yb and Sr clocks with 5×10-17 uncertainty at 150 seconds averaging time, Nat. Photon. 10, 258-261 (2016).
Y. Kaneda, J. M. Yarborough, Y. Merzlyak, A. Yamaguchi, K. Hayashida, N. Ohmae, and H. Katori, Continuous-wave, single-frequency 229 nm laser source for laser cooling of cadmium atoms, Opt. Lett. 41, 705 (2016).
2015
T. Pruttivarasin and H. Katori, Compact field programmable gate array-based pulse-sequencer and radio-frequency generator for experiments with trapped atoms, Rev. Sci. Instrum. 86, 115106 (2015).
K. Yamanaka, N. Ohmae, I. Ushijima, M. Takamoto, H. Katori, Frequency ratio of 199Hg and 87Sr optical lattice clocks beyond the SI limit, Phys. Rev. Lett. 114, 230801 (2015).
M. Takamoto, I. Ushijima, M. Das, N. Nemitz, T. Ohkubo, K. Yamanaka, N. Ohmae, T. Takano, T. Akatsuka, A. Yamaguchi, H. Katori, Frequency ratios of Sr, Yb, and Hg based optical lattice clocks and their applications, Compt. Rend. Phys.. 16, 489-498 (2015).
H. Katori, V. D. Ovsiannikov, S. I. Marmo, V. G. Palchikov, Strategies for reducing the light shift in atomic clocks, Phys. Rev. A 91, 052503 (2015).
V. A. Dzuba, V. V. Flambaum, H. Katori, Optical clock sensitive to variations of the fine-structure constant based on the Ho14+ ion. Phys. Rev. A 91, 022119 (2015).
I. Ushijima, M. Takamoto, M. Das, T. Ohkubo, H. Katori, Cryogenic optical lattice clocks. Nature Photon. 9, 185-189 (2015).
2014
S. Okaba, T. Takano, F. Benabid, T. Bradley, L. Vincetti, Z. Maizelis, V. Yampol'skii, F. Nori, and H. Katori, Lamb-Dicke spectroscopy of atoms in a hollow-core photonic crystal fibre, Nature Commun., 5, 4096 (2014).
T. Akatsuka, H. Ono, K. Hayashida, K. Araki, M. Takamoto, T. Takano, H. Katori, 30-km-long optical fiber link at 1397 nm for frequency comparison between distant strontium optical lattice clocks. Jpn. J. Appl. Phys. 53, 032801 (2014).
2013
V. D. Ovsiannikov, V. G. Pal'chikov, A. V. Taichenachev, V. I. Yudin, and H. Katori, Multipole, nonlinear, and anharmonic uncertainties of clocks of Sr atoms in an optical lattice, Phys. Rev. A 88, 013405 (2013).
2011
Atsushi Yamaguchi, Miho Fujieda, Motohiro Kumagai, Hidekazu Hachisu, Shigeo Nagano, Ying Li, Tetsuya Ido, Tetsushi Takano, Masao Takamoto, and Hidetoshi Katori, Direct Comparison of Distant Optical Lattice Clocks at the10-16 Uncertainty, Appl. Phys. Exp. 4, 082203 (2011). 【第34回応用物理学会論文賞】
Masao Takamoto, Tetsushi Takano, and Hidetoshi Katori, Frequency comparison of optical lattice clocks beyond the Dick limit, Nature Photon. 5, 288-292 (2011).
Hidetoshi Katori, Optical lattice clocks and quantum metrology, Nature Photon 5, 203-210 (2011).
Andrei Derevianko and Hidetoshi Katori, Colloquium: Physics of optical lattice clocks, Rev. Mod. Phys. 83, 331 (2011).
Hidetoshi Katori, Tetsushi Takano, and Masao Takamoto, Optical lattice clocks and frequency comparison, Journal of Physics: Conference Series 264, 012011 (2011).
2010-2006
F. L. Hong and H. Katori, Frequency Metrology with Optical Lattice Clocks, Jpn. J. Appl. Phys. 49, 080001 (2010).
Tomoya Akatsuka, Masao Takamoto, and Hidetoshi Katori, Three-dimensional optical lattice clock with bosonic 88Sr atoms, Phys. Rev. A 81, 023402 (2010).
H. Katori, K. Hashiguchi, E. Yu. Il'inova, V. D. Ovsiannikov, Magic Wavelength to Make Optical Lattice Clocks Insensitive to Atomic Motion, Phys. Rev. Lett. 103, 153004 (2009).
M. Takamoto, H. Katori, S. I. Marmo, V. D. Ovsiannikov, and V. G. Pal'chikov, Prospects for Optical Clocks with a Blue-Detuned Lattice, Phys. Rev. Lett. 102, 063002 (2009).
F. L. Hong, M. Musha, M. Takamoto, H. Inaba, S. Yanagimachi, A. Takamizawa, K. Watabe, T. Ikegami, M. Imae, Y. Fujii, M. Amemiya, K. Nakagawa, K. Ueda, and H. Katori, Measuring the frequency of a Sr optical lattice clock using a 120 km coherent optical transfer. Opt. Lett. 34, 692-694 (2009).
Masao Takamoto and Hidetoshi Katori, Coherence of Spin-Polarized Fermions Interacting with a Clock Laser in a Stark-Shift-Free Optical Lattice, J. Phys. Soc. Jpn. 78, 013301 (2009).
Tomoya Akatsuka, Masao Takamoto, and Hidetoshi Katori, Optical lattice clocks with non-interacting bosons and fermions, Nat. Phys. 4, 954-959 (2008).
Jun Ye, H. J. Kimble, and Hidetoshi Katori, Quantum State Engineering and Precision Metrology Using State-Insensitive Light Traps, Science 320, 1734-1738 (2008).
S. Blatt, A. D. Ludlow, G. K. Campbell, J. W. Thomsen, T. Zelevinsky, M. M. Boyd, J. Ye, X. Baillard, M. Fouche, R. L. Targat, A. Brusch, P. Lemonde, M. Takamoto, F. L. Hong, H. Katori and V. V. Flambaum, New Limits on Coupling of Fundamental Constants to Gravity Using 87Sr Optical Lattice Clocks Phys. Rev. Lett. 100, 140801 (2008).
H. Hachisu, K. Miyagishi, S. G. Porsev, A. Derevianko, V. D. Ovsiannikov, V. G. Pal’chikov, M. Takamoto, and H. Katori, Trapping of Neutral Mercury Atoms and Prospects for Optical Lattice Clocks, Phys. Rev. Lett. 100, 053001 (2008).
Vitaly D. Ovsiannikov, Vitaly G. Pal’chikov, Alexey V. Taichenachev, Valeriy I. Yudin, H. Katori and M. Takamoto, Magic-wave-induced 1S0-3P0 transition in even isotopes of alkaline-earth-metal-like atoms, Phys. Rev. A 75, 020501R (2007).
Masao Takamoto, Feng-Lei Hong, Ryoichi Higashi, Yasuhisa Fujii, Michito Imae and Hidetoshi Katori, Improved Frequency Measurement of a One-Dimensional Optical Lattice Clock with a Spin-Polarized Fermionic 87Sr Isotope, J. Phys. Soc. Jpn. 75, 104302 (2006). 【JPSJ注目論文賞】【日本物理学会 第18回論文賞】
T. Kishimoto, H. Hachisu, J. Fujiki, K. Nagato, M. Yasuda, and H. Katori, Electrodynamic trapping of spinless neutral atoms with an atom chip, Phys. Rev. Lett. 96, 123001 (2006).
V.D. Ovsiannikov, V.G. Pal'chikov, H. Katori, and M. Takamoto, Polarization and dispersion properties of light shifts in ultrastable optical frequency standards, Quant. Electron. 36, 3-19 (2006).
Masami Yasuda, Tetsuo Kishimoto, Masao Takamoto, Hidetoshi Katori, Photoassociation spectroscopy of 88Sr: reconstruction of the wave function near the last node, Phys. Rev. A 73, 011403R (2006).
2005-2000
F.-L. Hong, M. Takamoto, R. Higashi, Y. Fukuyama, J. Jiang, and H. Katori, Frequency measurement of a Sr lattice clock using an SI-second-referenced optical frequency comb linked by a global positioning system (GPS), Opt. Express 13, 5253 (2005).
M. Takamoto, F.-L. Hong, R. Higashi, and H. Katori, An optical lattice clock, Nature 435, 321-324 (2005).
Masami Yasuda and Hidetoshi Katori, Lifetime Measurement of the 3P2 Metastable State of Strontium Atoms, Phys. Rev. Lett. 92, 153004 (2004).
Ying Li, Tetsuya Ido, Taro Eichler, Hidetoshi Katori, Narrow-line diode laser system for laser cooling of strontium atoms on the intercombination transition, Appl. Phys. B 78, 315–320 (2004).
Hidetoshi Katori and Tomoya Akatsuka, Electric manipulation of spinless neutral atoms on a surface, Jpn. J. Appl. Phys. 43, 358-361 (2004).
Masao Takamoto and Hidetoshi Katori, Spectroscopy of the 1S0-3P0 Clock Transition of 87Sr in an Optical Lattice, Phys. Rev. Lett. 91, 223001 (2003).
Hidetoshi Katori, Masao Takamoto, V. G. Pal'chikov, and V. D. Ovsiannikov, Ultrastable Optical Clock with Neutral Atoms in an Engineered Light Shift Trap, Phys. Rev. Lett. 91, 173005 (2003).
Tetsuya Ido and Hidetoshi Katori, Recoil-free spectroscopy of neutral Sr atoms in the Lamb-Dicke regime, Phys. Rev. Lett. 91, 053001 (2003).
Takashi Mukaiyama, Hidetoshi Katori, Tetsuya Ido, Ying Li, and Makoto Kuwata-Gonokami, Recoil-limited laser cooling of 87Sr atoms near the Fermi temperature, Phys. Rev. Lett. 90, 113002 (2003).
Hidetoshi Katori, Spectroscopy of strontium atoms in the Lamb-Dicke confinement, Proceedings of the 6th Symposium on Frequency Standards and Metrology, edited by Patrick Gill (World Scientific, Singapore, 2002) p.323-330.
H. Katori, T. Ido, Y. Isoya, M. Kuwata-Gonokami, Laser cooling of strontium atoms toward quantum degeneracy, AIP Conference Proceedings 551, 382-396 (2001).
Tetsuya Ido, Yoshitomo Isoya, and Hidetoshi Katori, Optical-dipole trapping of Sr atoms at a high phase-space density, Phys. Rev. A., 61, 061403(R) (2000).
1999-
Hidetoshi Katori, Tetsuya Ido, and Makoto Kuwata-Gonokami, Optimal design of dipole potentials for efficient loading of Sr atoms, J. Phys. Soc. Jpn., 68, 2479-2482 (1999). 【日本物理学会 第6回論文賞】
Hidetoshi Katori, Tetsuya Ido, Yoshitomo Isoya, and Makoto Kuwata-Gonokami, Magneto-optical trapping and cooling of strontium atoms down to the photon recoil temperature, Phys. Rev. Lett., 82, 1116-1119 (1999).
S. Schlipf, H. Katori, L. Perotti, and H. Walther, Diffusion of a Single Ion in a one-Dimensional Optical Lattice, Opt. Express 3, 97-103 (1998).
Hidetoshi Katori, Stefan Schlipf, and Herbert Walther, Anomalous Dynamics of a Single Ion in an Optical Lattice, Phys. Rev. Lett. 79, 2221-2224 (1997).
Hidetoshi Katori, Hideyuki Kunugita and Tetsuya Ido, Quantum Statistical Effect on Ionizing Collisions of Ultracold Metastable Kr Isotopes, Phys. Rev. A52, R4324-R4327 (1995).
Hidetoshi Katori and Fujio Shimizu, Laser-induced Ionizing Collisions of Ultracold Krypton Gas in the 1s5 Metastable State, Phys. Rev. Lett. 73, 2555-2558 (1994).
Hidetoshi Katori and Fujio Shimizu, Lifetime Measurement of the 1s5 Metastable State of Argon and Krypton with a Magneto-Optical Trap, Phys. Rev. Lett. 70, 3545-3548 (1993).
Hidetoshi Katori and Fujio Shimizu, Laser Cooling and Trapping of Argon and Krypton Using Diode Lasers, Jpn. J. Appl. Phys. 29, L2124-L2127 (1990).
