James Koga

4.6k total citations
152 papers, 2.7k citations indexed

About

James Koga is a scholar working on Nuclear and High Energy Physics, Atomic and Molecular Physics, and Optics and Mechanics of Materials. According to data from OpenAlex, James Koga has authored 152 papers receiving a total of 2.7k indexed citations (citations by other indexed papers that have themselves been cited), including 131 papers in Nuclear and High Energy Physics, 97 papers in Atomic and Molecular Physics, and Optics and 63 papers in Mechanics of Materials. Recurrent topics in James Koga's work include Laser-Plasma Interactions and Diagnostics (120 papers), Laser-Matter Interactions and Applications (81 papers) and Laser-induced spectroscopy and plasma (62 papers). James Koga is often cited by papers focused on Laser-Plasma Interactions and Diagnostics (120 papers), Laser-Matter Interactions and Applications (81 papers) and Laser-induced spectroscopy and plasma (62 papers). James Koga collaborates with scholars based in Japan, Russia and United States. James Koga's co-authors include S. V. Bulanov, T. Zh. Esirkepov, M. Kando, T. Tajima, S. S. Bulanov, G. Korn, Mitsuru Uesaka, H. Kotaki, Alexei Zhidkov and Tatsufumi Nakamura and has published in prestigious journals such as Physical Review Letters, Journal of Geophysical Research Atmospheres and Applied Physics Letters.

In The Last Decade

James Koga

141 papers receiving 2.6k citations

Author Peers

Peers are selected by citation overlap in the author's most active subfields. citations · hero ref

Author Last Decade Papers Cites
James Koga 2.4k 1.8k 1.2k 628 366 152 2.7k
S. S. Bulanov 3.1k 1.3× 2.2k 1.2× 1.4k 1.1× 714 1.1× 605 1.7× 128 3.4k
C. P. Ridgers 3.0k 1.3× 1.9k 1.1× 1.4k 1.1× 858 1.4× 348 1.0× 85 3.3k
T. Tajima 3.0k 1.3× 2.2k 1.2× 1.9k 1.6× 842 1.3× 312 0.9× 72 3.5k
I. Yu. Kostyukov 2.3k 1.0× 1.6k 0.9× 1.1k 0.9× 582 0.9× 385 1.1× 92 2.5k
J. Vieira 2.8k 1.2× 2.0k 1.1× 1.3k 1.1× 431 0.7× 722 2.0× 113 3.3k
M. Kando 2.9k 1.2× 2.1k 1.2× 1.7k 1.4× 636 1.0× 525 1.4× 222 3.5k
S. Skupsky 2.5k 1.1× 1.8k 1.0× 1.6k 1.3× 970 1.5× 264 0.7× 79 3.1k
L. Divol 3.2k 1.4× 2.3k 1.3× 2.0k 1.7× 1.0k 1.6× 272 0.7× 172 3.7k
A. S. Pirozhkov 1.9k 0.8× 1.5k 0.8× 1.1k 0.9× 534 0.9× 382 1.0× 126 2.4k
David Bruhwiler 2.1k 0.9× 1.3k 0.7× 1.1k 0.9× 324 0.5× 634 1.7× 101 2.4k

Countries citing papers authored by James Koga

Since Specialization
Citations

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

Fields of papers citing papers by James Koga

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of James Koga

This figure shows the co-authorship network connecting the top 25 collaborators of James Koga. A scholar is included among the top collaborators of James Koga 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 James Koga. James Koga 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.
Lorenz, S., Akira Kon, A. Sagisaka, et al.. (2024). In-vacuum post-compression of optical probe pulses for relativistic plasma diagnostics. High Power Laser Science and Engineering. 12.
2.
Bierwage, A., T. Zh. Esirkepov, James Koga, et al.. (2024). Evolution of a laser wake cavity in a MCF plasma. Scientific Reports. 14(1). 27853–27853.
3.
Miyatake, T., Sadaoki Kojima, H. Sakaki, et al.. (2023). Evaluation of the spatial resolution of Gafchromic™ HD-V2 radiochromic film characterized by the modulation transfer function. AIP Advances. 13(8). 3 indexed citations
4.
Esirkepov, T. Zh., Y. J. Gu, Tae Moon Jeong, et al.. (2020). Optical probing of relativistic plasma singularities. Strathprints: The University of Strathclyde institutional repository (University of Strathclyde). 5 indexed citations
5.
Esirkepov, T. Zh., James Koga, A. Nečas, et al.. (2020). Polarity reversal of wakefields driven by ultrashort pulse laser. Physical review. E. 102(5). 53216–53216. 3 indexed citations
6.
Esirkepov, T. Zh., Y. J. Gu, Tae Moon Jeong, et al.. (2020). Relativistic flying forcibly oscillating reflective diffraction grating. Physical review. E. 102(5). 53202–53202. 1 indexed citations
7.
Gonoskov, Arkady, M. Marklund, T. Zh. Esirkepov, et al.. (2019). Multiple colliding laser pulses as a basis for studying high-field high-energy physics. Physical review. A. 100(6). 15 indexed citations
8.
Kando, M., T. Zh. Esirkepov, James Koga, A. S. Pirozhkov, & S. V. Bulanov. (2018). Coherent, Short-Pulse X-ray Generation via Relativistic Flying Mirrors. Quantum Beam Science. 2(2). 9–9. 15 indexed citations
9.
Huang, Kai, T. Zh. Esirkepov, James Koga, et al.. (2018). Electro-optic spatial decoding on the spherical-wavefront Coulomb fields of plasma electron sources. Scientific Reports. 8(1). 2938–2938. 10 indexed citations
10.
Sentoku, Y., Natsumi Iwata, James Koga, N. P. Dover, & Mamiko Nishiuchi. (2017). Plasma formation and target preheating by prepulse of PW laser light. Bulletin of the American Physical Society. 2017. 1 indexed citations
11.
Koga, James & Takehito Hayakawa. (2017). Possible Precise Measurement of Delbrück Scattering Using Polarized Photon Beams. Physical Review Letters. 118(20). 204801–204801. 22 indexed citations
12.
Esirkepov, T. Zh., S. S. Bulanov, James Koga, et al.. (2015). Attractors and chaos of electron dynamics in electromagnetic standing waves. Physics Letters A. 379(36). 2044–2054. 45 indexed citations
13.
Nakamura, Tatsufumi, James Koga, T. Zh. Esirkepov, et al.. (2012). High-Powerγ-Ray Flash Generation in Ultraintense Laser-Plasma Interactions. Physical Review Letters. 108(19). 195001–195001. 153 indexed citations
14.
Bulanov, S. V., T. Zh. Esirkepov, Y. Hayashi, et al.. (2011). On the design of experiments for the study of extreme field limits in the interaction of laser with ultrarelativistic electron beam. Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment. 660(1). 31–42. 56 indexed citations
15.
Bulanov, S. V., T. Zh. Esirkepov, M. Kando, James Koga, & S. S. Bulanov. (2011). Lorentz-Abraham-Dirac versus Landau-Lifshitz radiation friction force in the ultrarelativistic electron interaction with electromagnetic wave (exact solutions). Physical Review E. 84(5). 56605–56605. 68 indexed citations
16.
Bulanov, S. S., T. Zh. Esirkepov, A. G. R. Thomas, James Koga, & S. V. Bulanov. (2010). Schwinger Limit Attainability with Extreme Power Lasers. Physical Review Letters. 105(22). 220407–220407. 126 indexed citations
17.
Kando, M., M. Xu, James Koga, et al.. (2008). Study of X-Ray Emission Enhancement via a High-Contrast Femtosecond Laser Interacting with a Solid Foil. Physical Review Letters. 100(4). 45004–45004. 87 indexed citations
18.
Koga, James. (2004). Observation of supercontinuum generation in the direct simulation of an intense laser pulse propagating in a neutral gas. Physical Review E. 70(5). 56404–56404. 2 indexed citations
19.
Nakamura, Tatsufumi, Susumu Katō, James Koga, et al.. (2003). Acceleration of Injected Electron Beam by Ultra-Intense Laser Pulses with Phase Disturbances. Journal of Plasma and Fusion Research. 79(4). 318–320. 1 indexed citations
20.
Nagashima, Keisuke, James Koga, & M. Kando. (2001). Numerical study of laser wake field generated by two colliding laser beams. Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics. 64(6). 66403–66403. 6 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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