Kikuo Ujihara

985 total citations
61 papers, 822 citations indexed

About

Kikuo Ujihara is a scholar working on Atomic and Molecular Physics, and Optics, Electrical and Electronic Engineering and Artificial Intelligence. According to data from OpenAlex, Kikuo Ujihara has authored 61 papers receiving a total of 822 indexed citations (citations by other indexed papers that have themselves been cited), including 51 papers in Atomic and Molecular Physics, and Optics, 37 papers in Electrical and Electronic Engineering and 13 papers in Artificial Intelligence. Recurrent topics in Kikuo Ujihara's work include Photonic and Optical Devices (29 papers), Quantum optics and atomic interactions (22 papers) and Semiconductor Lasers and Optical Devices (13 papers). Kikuo Ujihara is often cited by papers focused on Photonic and Optical Devices (29 papers), Quantum optics and atomic interactions (22 papers) and Semiconductor Lasers and Optical Devices (13 papers). Kikuo Ujihara collaborates with scholars based in Japan, United States and Germany. Kikuo Ujihara's co-authors include Ho Trung Dung, Atsushi Nakamura, T. Sawada, Ichiro Takahashi, Akiyoshi Takada, Akira Yamasaki, Pierre Meystre, Sami T. Hendow, Takashi Yamanaka and L. Allen and has published in prestigious journals such as Physical Review Letters, Applied Physics Letters and Journal of Applied Physics.

In The Last Decade

Kikuo Ujihara

59 papers receiving 785 citations

Peers

Kikuo Ujihara

AMPO

EEE

X. Y. Wang United States

Chien-Ping Lee Taiwan

V. Daneu United States

H. Walther Germany

P. Bois France

Suhui Yang China

M. K. Barnoski United States

Christian Tanguy France

Robert W. Herrick United States

Andreas Reinhard Switzerland

X. Y. Wang United States

Kikuo Ujihara

334 ×0.6

AMPO

171 ×0.4

EEE

99 ×0.7

97 ×0.8

139 ×1.6

Citations per year, relative to Kikuo Ujihara Kikuo Ujihara (= 1×) peers X. Y. Wang

Countries citing papers authored by Kikuo Ujihara

Since Specialization

Citations

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

Fields of papers citing papers by Kikuo Ujihara

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Kikuo Ujihara

This figure shows the co-authorship network connecting the top 25 collaborators of Kikuo Ujihara. A scholar is included among the top collaborators of Kikuo Ujihara 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 Kikuo Ujihara. Kikuo Ujihara 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

Zhao, He & Kikuo Ujihara. (2006). Interference effects in the spontaneous emission from two initially excited atoms. Journal of Modern Optics. 53(5-6). 835–855. 2 indexed citations

Dung, Ho Trung & Kikuo Ujihara. (1999). Three-dimensional nonperturbative analysis of spontaneous emission in a Fabry-Perot microcavity. Physical Review A. 60(5). 4067–4082. 16 indexed citations

Takahashi, Ichiro & Kikuo Ujihara. (1998). Semiclassical theory of a planar microcavity laser – cavity size and detuning effects on threshold gain and oscillation frequency. Optics Communications. 158(1-6). 331–342. 1 indexed citations

Ujihara, Kikuo, et al.. (1993). Quantum-mechanical vacuum Rabi-oscillation frequency and the classical effective Rabi field. Physical Review A. 47(1). 581–587. 1 indexed citations

Ujihara, Kikuo. (1993). Decay rate dependence of the spontaneous emission pattern from an atom in an optical microcavity. Optics Communications. 101(3-4). 179–184. 3 indexed citations

Sawada, T., et al.. (1990). Multiple optical information recording in a Bi12SiO20 crystal.. The Review of Laser Engineering. 18(1). 8–15. 1 indexed citations

Ujihara, Kikuo, et al.. (1990). Quantum theory of spontaneous emission in a one-dimensional optical cavity with two-side output coupling. Physical Review A. 41(5). 2668–2676. 55 indexed citations

Ujihara, Kikuo, et al.. (1989). Quantum theory of spontaneous emission from a two-level atom in a one-dimensional cavity with output coupling. IEEE Journal of Quantum Electronics. 25(11). 2332–2343. 16 indexed citations

Ujihara, Kikuo. (1988). SPONTANEOUS EMISSION IN AN OPTICAL CAVITY WITH OUTPUT COUPLING. 1 indexed citations

10.

Sawada, T., et al.. (1988). Phase conjugation of planar guided waves. Journal of the Optical Society of America B. 5(2). 512–512. 2 indexed citations

11.

Ujihara, Kikuo. (1988). Quantum theory of a one-dimensional optical cavity with output coupling. V. Spontaneous emission. IEEE Journal of Quantum Electronics. 24(7). 1367–1375. 9 indexed citations

12.

Ujihara, Kikuo. (1985). Mean field theory of optical bistability in a phase-conjugate resonator using nearly degenerate four-wave mixing. IEEE Journal of Quantum Electronics. 21(9). 1523–1528. 2 indexed citations

13.

Ujihara, Kikuo. (1985). Resonances and mirror confinement in a three-mirror phase-conjugate resonator. Journal of the Optical Society of America B. 2(11). 1846–1846. 1 indexed citations

14.

Ujihara, Kikuo & Pierre Meystre. (1985). On the finesse of a phase-conjugate Fabry-Perot resonator using nearly-degenerate four-wave mixing. Optics Communications. 53(1). 48–52. 3 indexed citations

15.

Hendow, Sami T. & Kikuo Ujihara. (1983). Excitation of surface polaritons by nondegenerate four-wave mixing of evanescent waves. Optics Communications. 45(2). 138–142. 2 indexed citations

16.

Ujihara, Kikuo. (1982). Four-wave mixing and two-dimensional phase conjugation of surface plasmons. Optics Communications. 42(1). 1–4. 14 indexed citations

17.

Ujihara, Kikuo. (1982). Phase conjugation of surface plasmon waves by the third order nonlinearity of a free electron gas. Optics Communications. 43(3). 225–228. 12 indexed citations

18.

Ujihara, Kikuo. (1979). Quantum theory of a one-dimensional optical cavity with output coupling. III. Cavity quasimodes as the field eigenvalue. Physical review. A, General physics. 20(3). 1096–1104. 8 indexed citations

19.

Ujihara, Kikuo. (1978). Quantum theory of a one-dimensional optical cavity with output coupling. II. Thermal radiation field and the fluctuation-dissipation theorem. Physical review. A, General physics. 18(2). 659–670. 12 indexed citations

20.

Ujihara, Kikuo, et al.. (1969). Laser-induced sonic waves in air. Proceedings of the IEEE. 57(9). 1664–1665. 1 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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