Koji Usami

4.7k total citations · 5 hit papers
35 papers, 3.4k citations indexed

About

Koji Usami is a scholar working on Atomic and Molecular Physics, and Optics, Electrical and Electronic Engineering and Artificial Intelligence. According to data from OpenAlex, Koji Usami has authored 35 papers receiving a total of 3.4k indexed citations (citations by other indexed papers that have themselves been cited), including 34 papers in Atomic and Molecular Physics, and Optics, 19 papers in Electrical and Electronic Engineering and 12 papers in Artificial Intelligence. Recurrent topics in Koji Usami's work include Mechanical and Optical Resonators (26 papers), Photonic and Optical Devices (13 papers) and Quantum Information and Cryptography (12 papers). Koji Usami is often cited by papers focused on Mechanical and Optical Resonators (26 papers), Photonic and Optical Devices (13 papers) and Quantum Information and Cryptography (12 papers). Koji Usami collaborates with scholars based in Japan, Denmark and United States. Koji Usami's co-authors include Yasunobu Nakamura, Rekishu Yamazaki, Yutaka Tabuchi, T. Ishikawa, Seiichiro Ishino, Atsushi Noguchi, Ryusuke Hisatomi, Alto Osada, Masahiro Nomura and Dany Lachance-Quirion and has published in prestigious journals such as Nature, Science and Physical Review Letters.

In The Last Decade

Koji Usami

35 papers receiving 3.3k citations

Hit Papers

5 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.

Hybridizing Ferromagnetic Magnons and Microwave Photons in the Quantum Limit

2014 751 citations Yutaka Tabuchi, Seiichiro Ishino et al. Physical Review Letters profile →
Coherent coupling between a ferromagnetic magnon and a superconducting qubit

2015 615 citations Yutaka Tabuchi, Seiichiro Ishino et al. Science profile →
Cavity Optomagnonics with Spin-Orbit Coupled Photons

2016 329 citations Alto Osada, Ryusuke Hisatomi et al. Physical Review Letters profile →
Bidirectional conversion between microwave and light via ferromagnetic magnons

2016 315 citations Ryusuke Hisatomi, Alto Osada et al. Physical review. B. profile →
Cavity magnonics

2022 287 citations Babak Zare Rameshti, Silvia Viola Kusminskiy et al. Physics Reports profile →

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name	h						Papers	Cites
Koji Usami Japan	18	3.2k	1.6k	1.2k	243	226	35	3.4k
Katarina Cicak United States	23	4.4k 1.4×	2.4k 1.5×	2.0k 1.6×	224 0.9×	273 1.2×	45	4.7k
J. Q. You China	31	2.9k 0.9×	771 0.5×	1.6k 1.3×	115 0.5×	129 0.6×	93	3.1k
Eva M. Weig Germany	22	2.7k 0.9×	1.4k 0.9×	1.1k 0.9×	253 1.0×	67 0.3×	54	2.9k
Yaroslav M. Blanter Netherlands	24	2.2k 0.7×	908 0.6×	494 0.4×	218 0.9×	398 1.8×	57	2.5k
Thiago P. Mayer Alegre Brazil	17	3.6k 1.1×	2.6k 1.6×	774 0.6×	351 1.4×	33 0.1×	50	3.8k
Jed D. Whittaker United States	13	2.5k 0.8×	1.5k 1.0×	822 0.7×	153 0.6×	58 0.3×	21	2.6k
John Teufel United States	25	5.3k 1.6×	3.4k 2.1×	1.8k 1.5×	278 1.1×	72 0.3×	53	5.4k
Gaurav Bahl United States	26	2.7k 0.8×	1.8k 1.2×	148 0.1×	624 2.6×	251 1.1×	93	3.1k
M.‐A. Dupertuis Switzerland	24	1.6k 0.5×	952 0.6×	420 0.3×	222 0.9×	141 0.6×	109	2.0k
Jan Gieseler Spain	17	1.6k 0.5×	505 0.3×	322 0.3×	345 1.4×	39 0.2×	27	1.8k

Countries citing papers authored by Koji Usami

Since Specialization

Citations

This map shows the geographic impact of Koji Usami'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 Koji Usami with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Koji Usami more than expected).

Fields of papers citing papers by Koji Usami

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Koji Usami. 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 Koji Usami. The network helps show where Koji Usami may publish in the future.

Co-authorship network of co-authors of Koji Usami

This figure shows the co-authorship network connecting the top 25 collaborators of Koji Usami. A scholar is included among the top collaborators of Koji Usami 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 Koji Usami. Koji Usami is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

Sort: Min cites: Since: Top N: Style:

20 of 20 papers shown

Sasaki, Ryo, et al.. (2023). High-cooperativity cavity magnon-polariton using a high-Qdielectric resonator. Journal of Applied Physics. 134(8). 5 indexed citations

Ohshima, Ryo, et al.. (2022). Significant suppression of two-magnon scattering in ultrathin Co by controlling the surface magnetic anisotropy at the Co/nonmagnet interfaces. Physical review. B.. 106(17). 5 indexed citations

Rameshti, Babak Zare, Silvia Viola Kusminskiy, J. A. Haigh, et al.. (2022). Cavity magnonics. Physics Reports. 979. 1–61. 287 indexed citations breakdown →

Usami, Koji & Yasunobu Nakamura. (2021). A photonic link for quantum circuits. Nature Electronics. 4(5). 323–324. 5 indexed citations

Lachance-Quirion, Dany, Yutaka Tabuchi, S. Kono, et al.. (2020). Dissipation-Based Quantum Sensing of Magnons with a Superconducting Qubit. Physical Review Letters. 125(11). 117701–117701. 115 indexed citations

Yamazaki, Rekishu, Atsushi Noguchi, Shingo Akao, et al.. (2020). Radio-frequency-to-optical conversion using acoustic and optical whispering-gallery modes. Physical review. A. 101(5). 7 indexed citations

Gloppe, A., Masaru Onga, Ryusuke Hisatomi, et al.. (2020). Proximity-mediated magnon-exciton coupling at a van der Waals heterointerface. arXiv (Cornell University). 1 indexed citations

Baba, S., Yosuke Nakata, Yoshitaka Ito, et al.. (2019). Optical heterodyne imaging of magnetostatic modes in one-dimensional magnonic crystals. Physical review. B.. 100(10). 6 indexed citations

Osada, Alto, A. Gloppe, Ryusuke Hisatomi, et al.. (2018). Brillouin Light Scattering by Magnetic Quasivortices in Cavity Optomagnonics. Physical Review Letters. 120(13). 133602–133602. 112 indexed citations

10.

Kono, S., Y. MASUYAMA, T. Ishikawa, et al.. (2017). Nonclassical Photon Number Distribution in a Superconducting Cavity under a Squeezed Drive. Physical Review Letters. 119(2). 23602–23602. 36 indexed citations

11.

Noguchi, Atsushi, Rekishu Yamazaki, Manabu Ataka, et al.. (2016). Ground state cooling of a quantum electromechanical system with a silicon nitride membrane in a 3D loop-gap cavity. New Journal of Physics. 18(10). 103036–103036. 25 indexed citations

12.

Osada, Alto, Ryusuke Hisatomi, Atsushi Noguchi, et al.. (2016). Cavity Optomagnonics with Spin-Orbit Coupled Photons. Physical Review Letters. 116(22). 223601–223601. 329 indexed citations breakdown →

13.

Tabuchi, Yutaka, Seiichiro Ishino, Atsushi Noguchi, et al.. (2016). Quantum magnonics: The magnon meets the superconducting qubit. Comptes Rendus Physique. 17(7). 729–739. 124 indexed citations

14.

Tabuchi, Yutaka, Seiichiro Ishino, Atsushi Noguchi, et al.. (2015). Coherent coupling between a ferromagnetic magnon and a superconducting qubit. Science. 349(6246). 405–408. 615 indexed citations breakdown →

15.

Bagci, T., Anders Simonsen, Silvan Schmid, et al.. (2014). Optical detection of radio waves through a nanomechanical transducer. Nature. 507(7490). 81–85. 304 indexed citations

16.

Tabuchi, Yutaka, Seiichiro Ishino, T. Ishikawa, et al.. (2014). Hybridizing Ferromagnetic Magnons and Microwave Photons in the Quantum Limit. Physical Review Letters. 113(8). 83603–83603. 751 indexed citations breakdown →

17.

Bagci, T., Anders Simonsen, Silvan Schmid, et al.. (2014). Optical Detection of Radio Waves Through a Nanomechanical Transducer. Research at the University of Copenhagen (University of Copenhagen). FW1C.2–FW1C.2. 11 indexed citations

18.

Usami, Koji & Mikio Kozuma. (2007). Observation of a Topological and Parity-Dependent Phase ofm=0Spin States. Physical Review Letters. 99(14). 140404–140404. 6 indexed citations

19.

Usami, Koji, Junichi Takahashi, & Mikio Kozuma. (2006). How to measure the quantum state of collective atomic spin excitation. Physical Review A. 74(4). 3 indexed citations

20.

Usami, Koji, Yoshihiro Nambu, Bao‐Sen Shi, Akihisa Tomita, & Kazuo Nakamura. (2004). Observation of Antinormally Ordered Hanbury Brown–Twiss Correlations. Physical Review Letters. 92(11). 113601–113601. 4 indexed citations

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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