K. Okada

1.4k total citations
79 papers, 1.2k citations indexed

About

K. Okada is a scholar working on Atomic and Molecular Physics, and Optics, Spectroscopy and Radiation. According to data from OpenAlex, K. Okada has authored 79 papers receiving a total of 1.2k indexed citations (citations by other indexed papers that have themselves been cited), including 61 papers in Atomic and Molecular Physics, and Optics, 34 papers in Spectroscopy and 19 papers in Radiation. Recurrent topics in K. Okada's work include Advanced Chemical Physics Studies (49 papers), Atomic and Molecular Physics (29 papers) and Mass Spectrometry Techniques and Applications (24 papers). K. Okada is often cited by papers focused on Advanced Chemical Physics Studies (49 papers), Atomic and Molecular Physics (29 papers) and Mass Spectrometry Techniques and Applications (24 papers). K. Okada collaborates with scholars based in Japan, Sweden and France. K. Okada's co-authors include Y. Tamenori, Toshio Ibuki, Norio Saitô, K. Ueda, Isao Suzuki, T. Gejo, Ko Saito, Inosuke Koyano, Shin‐ichi Nagaoka and Haruhiko Ohashi and has published in prestigious journals such as Physical Review Letters, The Journal of Chemical Physics and The Journal of Physical Chemistry B.

In The Last Decade

K. Okada

78 papers receiving 1.2k citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
K. Okada Japan 19 1.0k 546 328 185 137 79 1.2k
L. Andrić France 23 1.4k 1.4× 521 1.0× 396 1.2× 314 1.7× 105 0.8× 73 1.5k
Masatoshi Ukai Japan 22 993 1.0× 522 1.0× 193 0.6× 114 0.6× 96 0.7× 66 1.3k
T. Lischke Germany 19 1.5k 1.5× 675 1.2× 182 0.6× 171 0.9× 166 1.2× 49 1.7k
Mariusz Zubek Poland 24 1.2k 1.2× 515 0.9× 254 0.8× 204 1.1× 86 0.6× 77 1.4k
L. M. Brescansin Brazil 22 1.3k 1.3× 304 0.6× 353 1.1× 209 1.1× 121 0.9× 86 1.4k
V L Sukhorukov Russia 24 1.5k 1.5× 551 1.0× 551 1.7× 340 1.8× 131 1.0× 116 1.8k
B. Kempgens Germany 23 977 1.0× 343 0.6× 308 0.9× 160 0.9× 240 1.8× 34 1.1k
I. Iga Brazil 22 1.0k 1.0× 312 0.6× 327 1.0× 212 1.1× 101 0.7× 81 1.2k
M. G. P. Homem Brazil 21 756 0.8× 300 0.5× 227 0.7× 118 0.6× 101 0.7× 65 924
Uwe Becker Germany 14 1.1k 1.1× 386 0.7× 179 0.5× 158 0.9× 92 0.7× 28 1.2k

Countries citing papers authored by K. Okada

Since Specialization
Citations

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

Fields of papers citing papers by K. Okada

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of K. Okada

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

All Works

20 of 20 papers shown
1.
Tabayashi, Kiyohiko, Kazuhiro Yamamoto, Hiroaki Yoshida, et al.. (2010). Core-electron excitation and fragmentation processes of hydrogen bonded acetic-acid clusters in the oxygen K-edge region. Journal of Electron Spectroscopy and Related Phenomena. 184(3-6). 134–139. 7 indexed citations
2.
Kato, Masahiro, Y. Morishita, Masaki Oura, et al.. (2007). Absolute Photoionization Cross Section with an Ultra-high Energy Resolution for Ne in the Region of 1s Rydberg States. AIP conference proceedings. 879. 1121–1124. 7 indexed citations
3.
Nagaoka, Shin‐ichi, G. Prümper, H. Fukuzawa, et al.. (2007). Electron-ion-ion triple-coincidence spectroscopic study of site-specific fragmentation caused bySi:2pcore-level photoionization ofF3SiCH2CH2Si(CH3)3vapor. Physical Review A. 75(2). 30 indexed citations
4.
Ibuki, Toshio, Satoshi Itoh, Y. Tamenori, et al.. (2006). Doppler effect in resonant excitation of CF3SF5 probed by Auger electron spectroscopy. Journal of Electron Spectroscopy and Related Phenomena. 154(3). 53–59. 5 indexed citations
5.
Kato, Masahiro, Y. Morishita, Fumihiro Koike, et al.. (2006). High-resolution absolute photoabsorption cross sections for Ne in the 1s2s and 1s2p resonant double excitation. Journal of Physics B Atomic Molecular and Optical Physics. 39(8). 2059–2069. 7 indexed citations
6.
Nagaoka, Shin‐ichi, Akiko Fujii, Joji Ohshita, et al.. (2005). Site-specific fragmentation caused by core-level photoexcitation: Comparison between Si:1s and 2p photoexcitations in F3SiCH2CH2Si(CH3)3 vapor. International Journal of Mass Spectrometry. 247(1-3). 101–105. 9 indexed citations
7.
Ibuki, Toshio, K. Okada, Michiko Takahashi, et al.. (2005). Energy relaxation through the π*-state in C, F and O K-shell excited CF3COCH3. Journal of Electron Spectroscopy and Related Phenomena. 143(1). 21–27. 7 indexed citations
8.
Ibuki, Toshio, Yozo Shimada, R. Hashimoto, et al.. (2005). Photofragmentation of C, F and S K-shell excited CF3SF5 studied by PEPICO and PIPICO spectroscopy. Chemical Physics. 314(1-3). 119–126. 13 indexed citations
9.
Ueda, K., M. Kitajima, A. De Fanis, et al.. (2003). Anisotropic Ultrafast Dissociation Probed by the Doppler Effect in Resonant Photoemission fromCF4. Physical Review Letters. 90(23). 233006–233006. 40 indexed citations
10.
Kitajima, M., K. Ueda, A. De Fanis, et al.. (2003). Doppler Effect in Resonant Photoemission fromSF6: Correlation between Doppler Profile and Auger Emission Anisotropy. Physical Review Letters. 91(21). 213003–213003. 44 indexed citations
11.
Feifel, R., K. Ueda, A. De Fanis, et al.. (2003). Probing doubly excited ionic states ofN2+via a triple excitation above the N1sthreshold in theN2molecule. Physical Review A. 67(3). 7 indexed citations
12.
Yoshida, Hiroaki, Katsuyuki Nobusada, K. Okada, et al.. (2002). Symmetry-Resolved Vibrational Spectroscopy for the C1s−12πuRenner-Teller Pair States inCO2. Physical Review Letters. 88(8). 83001–83001. 18 indexed citations
13.
Ibuki, Toshio, et al.. (2002). Fragmentation competing with energy relaxation in core-excited CF3CN. Journal of Electron Spectroscopy and Related Phenomena. 123(2-3). 323–331. 14 indexed citations
14.
Okada, K., Y. Tamenori, Inosuke Koyano, & K. Ueda. (2002). SYMMETRY BREAKING OF A SiF4 MOLECULE BY F 1s EXCITATION. Surface Review and Letters. 9(1). 89–92. 6 indexed citations
15.
Shimizu, Y., Haruhiko Ohashi, Y. Tamenori, et al.. (2001). Sub-natural-width angle-resolved resonant Auger electron spectroscopy of atoms and molecules on the high resolution soft X-ray monochromator at SPring-8. Journal of Electron Spectroscopy and Related Phenomena. 114-116. 63–68. 58 indexed citations
16.
Okada, K. & Ko Saito. (1996). Reaction-Path Dynamics Study of Competing Channels in the Thermal Unimolecular Decomposition of Isoxazole. The Journal of Physical Chemistry. 100(22). 9365–9369. 15 indexed citations
17.
Ibuki, Toshio & K. Okada. (1996). Photoabsorption and fluorescence excitation spectra of CF3CN in the region of 6–41 eV. Chemical Physics Letters. 263(1-2). 173–177. 2 indexed citations
18.
Okada, K. & Ko Saito. (1995). Thermal Unimolecular Reaction of Pyruvonitrile: Experimental and Computational Study on the Occurrence of Isomerization. The Journal of Physical Chemistry. 99(35). 13168–13172. 10 indexed citations
19.
Takahashi, Satoru, Mitsuru Yanai, & K. Okada. (1995). Recombinant human erythropoietin has no direct or strong vasoconstrictor effects in vivo and in vitro. Nephrology Dialysis Transplantation. 10(6). 815–820. 6 indexed citations
20.
Soejima, Hidenobu, K. Okada, Shinichi Matsuzaki, et al.. (1990). [A case of gastric cancer (IIb) on the submucosal tumor (leiomyoma) of the stomach].. PubMed. 87(11). 2526–30. 3 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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