S. Kar

7.8k total citations · 2 hit papers
115 papers, 4.3k citations indexed

About

S. Kar is a scholar working on Nuclear and High Energy Physics, Mechanics of Materials and Atomic and Molecular Physics, and Optics. According to data from OpenAlex, S. Kar has authored 115 papers receiving a total of 4.3k indexed citations (citations by other indexed papers that have themselves been cited), including 104 papers in Nuclear and High Energy Physics, 57 papers in Mechanics of Materials and 50 papers in Atomic and Molecular Physics, and Optics. Recurrent topics in S. Kar's work include Laser-Plasma Interactions and Diagnostics (104 papers), Laser-induced spectroscopy and plasma (56 papers) and High-pressure geophysics and materials (46 papers). S. Kar is often cited by papers focused on Laser-Plasma Interactions and Diagnostics (104 papers), Laser-induced spectroscopy and plasma (56 papers) and High-pressure geophysics and materials (46 papers). S. Kar collaborates with scholars based in United Kingdom, Germany and Italy. S. Kar's co-authors include M. Zepf, M. Borghesi, C. Bellei, A. P. L. Robinson, P. McKenna, Roger G. Evans, D. Neely, O. Willi, L. Romagnani and B. Dromey and has published in prestigious journals such as Physical Review Letters, Nature Communications and Applied Physics Letters.

In The Last Decade

S. Kar

110 papers receiving 4.2k citations

Hit Papers

align trajectories sort by overperformance

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.

Radiation pressure acceleration of thin foils with circularly polarized laser pulses

2008 465 citations M. Zepf, S. Kar et al. New Journal of Physics profile →
Near-100 MeV protons via a laser-driven transparency-enhanced hybrid acceleration scheme

2018 285 citations A. Higginson, R. J. Gray et al. Nature Communications profile →

Author Peers

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

Author						Papers	Cites
S. Kar	4.0k	2.5k	2.4k	1.4k	554	115	4.3k
M. Roth	4.8k 1.2×	3.1k 1.3×	2.7k 1.2×	2.0k 1.4×	630 1.1×	145	5.4k
B. M. Hegelich	5.0k 1.3×	3.4k 1.4×	3.0k 1.3×	1.8k 1.2×	547 1.0×	117	5.3k
Kirk Flippo	3.7k 0.9×	2.4k 1.0×	2.0k 0.8×	1.3k 0.9×	397 0.7×	125	4.0k
L. A. Gizzi	2.7k 0.7×	1.9k 0.8×	1.7k 0.7×	765 0.5×	521 0.9×	204	3.3k
R. A. Snavely	4.7k 1.2×	3.1k 1.3×	2.5k 1.1×	1.9k 1.4×	518 0.9×	28	4.8k
J. Fuchs	5.2k 1.3×	3.5k 1.4×	3.1k 1.3×	1.9k 1.3×	548 1.0×	206	5.7k
E. d’Humières	3.0k 0.8×	1.9k 0.8×	1.7k 0.7×	1.1k 0.8×	369 0.7×	139	3.3k
Ε. L. Clark	3.7k 0.9×	2.5k 1.0×	2.2k 0.9×	1.3k 0.9×	416 0.8×	76	4.1k
M. Zepf	5.6k 1.4×	3.5k 1.4×	4.0k 1.7×	1.6k 1.1×	542 1.0×	110	6.3k
T. Tajima	3.0k 0.8×	1.9k 0.8×	2.2k 0.9×	842 0.6×	265 0.5×	72	3.5k

Countries citing papers authored by S. Kar

Since Specialization

Citations

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

Fields of papers citing papers by S. Kar

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of S. Kar

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

Macchi, Andrea, L. Romagnani, Philip Martin, et al.. (2025). Surface Wave Electron Acceleration from Flat Foils at Parallel Laser Incidence. Physical Review Letters. 135(14). 145001–145001.

Martin, Philip, et al.. (2024). Multi-parametric characterization of proton bunches above 50 MeV generated by helical coil targets. High Power Laser Science and Engineering. 12. 2 indexed citations

Martin, Philip, H. Ahmed, D. Doria, et al.. (2024). Narrow-band acceleration of gold ions to GeV energies from ultra-thin foils. Communications Physics. 7(1). 3 indexed citations

Higginson, D. P., M. Borghesi, L. A. Bernstein, et al.. (2024). Global characterization of a laser-generated neutron source. Journal of Plasma Physics. 90(3). 1 indexed citations

Ramakrishna, B., S. Krishnamurthy, K. F. Kakolee, et al.. (2023). Probing bulk electron temperature via x-ray emission in a solid density plasma. Plasma Physics and Controlled Fusion. 65(4). 45005–45005. 1 indexed citations

Ferguson, S. M., Philip Martin, H. Ahmed, et al.. (2023). Dual stage approach to laser-driven helical coil proton acceleration. New Journal of Physics. 25(1). 13006–13006. 10 indexed citations

Kar, Anindya, et al.. (2022). Mental health disorders in English newspapers of India: A retrospective study. International Journal of Social Psychiatry. 69(3). 646–652. 2 indexed citations

Yogo, Akifumi, Takehito Hayakawa, Yasunobu Arikawa, et al.. (2022). Non-destructive inspection of water or high-pressure hydrogen gas in metal pipes by the flash of neutrons and x rays generated by laser. AIP Advances. 12(4). 10 indexed citations

Yogo, Akifumi, S. R. Mirfayzi, Yasunobu Arikawa, et al.. (2021). Single shot radiography by a bright source of laser-driven thermal neutrons and x-rays. Applied Physics Express. 14(10). 106001–106001. 21 indexed citations

10.

Mirfayzi, S. R., H. Ahmed, D. Doria, et al.. (2020). A miniature thermal neutron source using high power lasers. Applied Physics Letters. 116(17). 18 indexed citations

11.

Mirfayzi, S. R., Akifumi Yogo, A. Iwamoto, et al.. (2020). Proof-of-principle experiment for laser-driven cold neutron source. Scientific Reports. 10(1). 20157–20157. 32 indexed citations

12.

Shen, Baifei, M. Borghesi, W. P. Wang, et al.. (2019). Proton array focused by a laser-irradiated mesh. Applied Physics Letters. 114(1). 3 indexed citations

13.

Higginson, A., R. J. Gray, M. King, et al.. (2018). Near-100 MeV protons via a laser-driven transparency-enhanced hybrid acceleration scheme. Nature Communications. 9(1). 724–724. 285 indexed citations breakdown →

14.

Ahmed, H., S. Kar, D. Doria, et al.. (2017). Proton probing of laser-driven EM pulses travelling in helical coils. High Power Laser Science and Engineering. 5. 8 indexed citations

15.

Sarri, G., Marija Vranić, D. Doria, et al.. (2016). Magnetic field generation during intense laser channelling in underdense plasma. Physics of Plasmas. 23(6). 5 indexed citations

16.

Alejo, A., S. Kar, A. Tebartz, et al.. (2016). High resolution Thomson Parabola Spectrometer for full spectral capture of multi-species ion beams. Review of Scientific Instruments. 87(8). 83304–83304. 9 indexed citations

17.

Alejo, A., et al.. (2016). Recent advances in laser-driven neutron sources. Research Portal (Queen's University Belfast). 38(6). 1–7. 17 indexed citations

18.

Romagnani, L., Alessandra Bigongiari, S. Kar, et al.. (2010). Observation of Magnetized Soliton Remnants in the Wake of Intense Laser Pulse Propagation through Plasmas. Physical Review Letters. 105(17). 175002–175002. 32 indexed citations

19.

Carroll, D. C., Dimitri Batani, Roger G. Evans, et al.. (2009). Dynamic control and enhancement of laser-accelerated protons using multiple laser pulses. Comptes Rendus Physique. 10(2-3). 188–196. 7 indexed citations

20.

Dromey, B., S. Kar, C. Bellei, et al.. (2007). Bright Multi-keV Harmonic Generation from Relativistically Oscillating Plasma Surfaces. Physical Review Letters. 99(8). 85001–85001. 176 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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