Masao Takamoto

5.1k citations

40 papers · 3.4k indexed · 3 hit papers · h-index 24

Atomic and Molecular Physics, and Optics top 0.5%
Electrical and Electronic Engineering top 10%
Statistics, Probability and Uncertainty top 0.5%
Spectroscopy top 5%
Surgery

Co-authors: Hidetoshi Katori Ichiro Ushijima Feng-Lei Hong Ryoichi Higashi V. G. Pal’chikov V D Ovsiannikov Manoj Das Takuya Ohkubo
Topics: Advanced Frequency and Time Standards (37 papers)Cold Atom Physics and Bose-Einstein Condensates (28 papers)Atomic and Subatomic Physics Research (24 papers)
Cited by: Atomic and Molecular Physics, and Optics Statistics, Probability and Uncertainty Spectroscopy
Journals: Nature Physical Review Letters Applied Physics Letters
Partner nations: Japan Russia United States

In The Last Decade

Masao Takamoto

39 papers receiving 3.2k citations

Hit Papers

align trajectories

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

An optical lattice clock

2005 579 citations Masao Takamoto, Feng-Lei Hong et al. Nature profile →
Cryogenic optical lattice clocks

2015 416 citations Ichiro Ushijima, Masao Takamoto et al. Nature Photonics profile →
Test of general relativity by a pair of transportable optical lattice clocks

2020 283 citations Masao Takamoto, Ichiro Ushijima et al. Nature Photonics profile →

Peers

Countries citing papers authored by Masao Takamoto

Since Specialization

Citations

This map shows the geographic impact of Masao Takamoto's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Masao Takamoto with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Masao Takamoto more than expected).

Fields of papers citing papers by Masao Takamoto

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Masao Takamoto. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Masao Takamoto. The network helps show where Masao Takamoto may publish in the future.

Co-authorship network of co-authors of Masao Takamoto

This figure shows the co-authorship network connecting the top 25 collaborators of Masao Takamoto. A scholar is included among the top collaborators of Masao Takamoto based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Masao Takamoto. Masao Takamoto is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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20 of 20 papers shown

#	Work	Indexed citations
1	Continuous outcoupling of ultracold strontium atoms combining three different traps 2023 ·Applied Physics Express ·(unknown),(unknown),(unknown),Masao Takamoto,S. Tsuji,Hidetoshi Katori	12
2	Transportable Strontium Optical Lattice Clocks Operated Outside Laboratory at the Level of 10 ⁻¹⁸ Uncertainty 2021 ·Advanced Quantum Technologies ·Noriaki Ohmae,Masao Takamoto,Yosuke Takahashi,M. Kokubun,(unknown),Andrew Hinton,Ichiro Ushijima,Takashi Muramatsu,Tetsuo Furumiya,Yuya Sakai,(unknown),(unknown),(unknown),(unknown),(unknown),Hidetoshi Katori	51
3	Three-stage laser cooling of Sr atoms using the 5s5pP23 metastable state below Doppler temperatures 2021 ·Physical review. A ·Tomoya Akatsuka,(unknown),(unknown),Noriaki Ohmae,Masao Takamoto,Hidetoshi Katori	12
4	Test of general relativity by a pair of transportable optical lattice clocksbreakdown → 2020 ·Nature Photonics ·Masao Takamoto,Ichiro Ushijima,Noriaki Ohmae,Toshihiro Yahagi,Kensuke Kokado,H. Shinkai,Hidetoshi Katori	283
5	Optical frequency distribution using laser repeater stations with planar lightwave circuits 2020 ·Optics Express ·Tomoya Akatsuka,Takashi Goh,(unknown),Katsuya Oguri,Atsushi Ishizawa,Ichiro Ushijima,Noriaki Ohmae,Masao Takamoto,Hidetoshi Katori,(unknown),Hideki Gotoh,Tetsuomi Sogawa	24
6	Frequency measurement on the 5s5p P23−5s4d D33 transition of Sr88 atoms using the photon-momentum-transfer technique 2019 ·Physical review. A ·(unknown),Tomoya Akatsuka,Noriaki Ohmae,Masao Takamoto,Hidetoshi Katori	5
7	Operational Magic Intensity for Sr Optical Lattice Clocks 2018 ·Physical Review Letters ·Ichiro Ushijima,Masao Takamoto,Hidetoshi Katori	74
8	Frequency Ratio ofHg199andSr87Optical Lattice Clocks beyond the SI Limit 2015 ·Physical Review Letters ·K. Yamanaka,Noriaki Ohmae,Ichiro Ushijima,Masao Takamoto,Hidetoshi Katori	64
9	Frequency ratios of Sr, Yb, and Hg based optical lattice clocks and their applications 2015 ·Comptes Rendus Physique ·Masao Takamoto,Ichiro Ushijima,Manoj Das,Nils Nemitz,Takuya Ohkubo,K. Yamanaka,Noriaki Ohmae,T. Takano,Tomoya Akatsuka,Atsushi Yamaguchi,Hidetoshi Katori	52
10	Optical direct comparison of⁸⁷Sr optical lattice clocks using a >50 km telecommunication fiber link 2011 ·Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE ·Hidekazu Hachisu,Atsushi Yamaguchi,Miho Fujieda,(unknown),Shigeo Nagano,Ying Li,T. Ido,T. Takano,Masao Takamoto,Hidetoshi Katori	0
11	Measuring the frequency of a Sr optical lattice clock using a 120 km coherent optical transfer 2009 ·Optics Letters ·Feng-Lei Hong,M. Musha,Masao Takamoto,Hajime Inaba,Shinya Yanagimachi,Akifumi Takamizawa,K. Watabe,Takeshi Ikegami,Michito Imae,Yasuhisa Fujii,(unknown),K. Nakagawa,K. Ueda,Hidetoshi Katori	60
12	Prospects for Optical Clocks with a Blue-Detuned Lattice 2009 ·Physical Review Letters ·Masao Takamoto,Hidetoshi Katori,S. I. Marmo,V D Ovsiannikov,V. G. Pal’chikov	60
13	New Limits on Coupling of Fundamental Constants to Gravity UsingSr87Optical Lattice Clocks 2008 ·Physical Review Letters ·Sebastian Blatt,Andrew D. Ludlow,Gretchen K. Campbell,J. W. Thomsen,Tanya Zelevinsky,Martin M. Boyd,J. Ye,Xavier Baillard,Mathilde Fouché,Rodolphe Le Targat,Anders Brusch,P. Lemonde,Masao Takamoto,Feng-Lei Hong,Hidetoshi Katori,V. V. Flambaum	196
14	Trapping of Neutral Mercury Atoms and Prospects for Optical Lattice Clocks 2008 ·Physical Review Letters ·Hidekazu Hachisu,(unknown),S. G. Porsev,Andrei Derevianko,V D Ovsiannikov,V. G. Pal’chikov,Masao Takamoto,Hidetoshi Katori	127
15	Optical lattice clocks with non-interacting bosons and fermions 2008 ·Nature Physics ·Tomoya Akatsuka,Masao Takamoto,Hidetoshi Katori	95
16	Magic-wave-inducedS01−P03transition in even isotopes of alkaline-earth-metal-like atoms 2007 ·Physical Review A ·(unknown),(unknown),А. В. Тайченачев,V. I. Yudin,Hidetoshi Katori,Masao Takamoto	31
17	An optical lattice clockbreakdown → 2005 ·Nature ·Masao Takamoto,Feng-Lei Hong,Ryoichi Higashi,Hidetoshi Katori	579
18	Ultrastable Optical Clock with Neutral Atoms in an Engineered Light Shift Trap 2003 ·arXiv (Cornell University) ·Hidetoshi Katori,Masao Takamoto,V. G. Pal’chikov,V D Ovsiannikov	384
19	Ultrastable Optical Clock with Neutral Atoms in an Engineered Light Shift Trap 2003 ·Physical Review Letters ·Hidetoshi Katori,Masao Takamoto,(unknown),(unknown)	20
20	Spectroscopy of theS01−P03Clock Transition ofSr87in an Optical Lattice 2003 ·Physical Review Letters ·Masao Takamoto,Hidetoshi Katori	122

About Masao Takamoto

Masao Takamoto is a scholar working on Atomic and Molecular Physics, and Optics, Statistics, Probability and Uncertainty and Surgery, having authored 40 papers that have together received 3.4k indexed citations. Recurring topics across this work include Advanced Frequency and Time Standards (37 papers), Cold Atom Physics and Bose-Einstein Condensates (28 papers) and Atomic and Subatomic Physics Research (24 papers). The work is most often cited by research in Atomic and Molecular Physics, and Optics (3.3k citations), Statistics, Probability and Uncertainty (298 citations) and Spectroscopy (195 citations). Masao Takamoto has collaborated with scholars based in Japan, Russia and United States. Frequent co-authors include Hidetoshi Katori, Ichiro Ushijima, Feng-Lei Hong, Ryoichi Higashi, V. G. Pal’chikov, V D Ovsiannikov, Manoj Das, Takuya Ohkubo, Noriaki Ohmae and Tomoya Akatsuka. Their work appears in journals such as Nature, Physical Review Letters and Applied Physics Letters.

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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