Takeshi Ohshima

16.6k total citations · 2 hit papers
670 papers, 11.5k citations indexed

About

Takeshi Ohshima is a scholar working on Electrical and Electronic Engineering, Materials Chemistry and Atomic and Molecular Physics, and Optics. According to data from OpenAlex, Takeshi Ohshima has authored 670 papers receiving a total of 11.5k indexed citations (citations by other indexed papers that have themselves been cited), including 499 papers in Electrical and Electronic Engineering, 261 papers in Materials Chemistry and 189 papers in Atomic and Molecular Physics, and Optics. Recurrent topics in Takeshi Ohshima's work include Semiconductor materials and devices (235 papers), Silicon Carbide Semiconductor Technologies (227 papers) and Diamond and Carbon-based Materials Research (174 papers). Takeshi Ohshima is often cited by papers focused on Semiconductor materials and devices (235 papers), Silicon Carbide Semiconductor Technologies (227 papers) and Diamond and Carbon-based Materials Research (174 papers). Takeshi Ohshima collaborates with scholars based in Japan, Germany and Australia. Takeshi Ohshima's co-authors include Junichi Isoya, Shinobu Onoda, Nguyên Tiên Són, Mitsuru Imaizumi, Hiroshi Abe, Ádám Gali, T. Umeda, Erik Janzén, Jörg Wrachtrup and H. Itoh and has published in prestigious journals such as Nature, Proceedings of the National Academy of Sciences and Physical Review Letters.

In The Last Decade

Takeshi Ohshima

633 papers receiving 11.3k 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.

Coherent control of single spins in silicon carbide at room temperature

2014 474 citations Matthias Widmann, Sang‐Yun Lee et al. profile →
Quantum error correction in a solid-state hybrid spin register

2014 405 citations Hiroshi Abe, Takeshi Ohshima et al. profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Takeshi Ohshima Japan	50	6.9k	5.9k	3.7k	964	875	670	11.5k
Noam Bernstein United States	42	2.5k 0.4×	5.8k 1.0×	1.8k 0.5×	819 0.8×	529 0.6×	119	8.5k
K. M. Ho United States	51	4.1k 0.6×	5.1k 0.9×	6.3k 1.7×	2.0k 2.0×	1.2k 1.3×	141	11.4k
D. Rugar United States	53	5.7k 0.8×	2.8k 0.5×	11.8k 3.2×	4.2k 4.3×	559 0.6×	138	13.9k
Huiqiu Deng China	45	2.0k 0.3×	4.5k 0.8×	1.1k 0.3×	536 0.6×	640 0.7×	380	7.9k
P. D. Townsend United Kingdom	48	4.3k 0.6×	2.7k 0.4×	3.6k 1.0×	1.0k 1.0×	539 0.6×	388	8.7k
M. Henini United Kingdom	58	7.5k 1.1×	5.2k 0.9×	10.4k 2.8×	1.6k 1.7×	1.3k 1.5×	822	15.5k
Austin J. Minnich United States	43	3.1k 0.5×	11.4k 1.9×	2.2k 0.6×	752 0.8×	1.2k 1.4×	112	13.6k
H. Kurz Germany	69	11.8k 1.7×	5.1k 0.9×	7.3k 2.0×	4.4k 4.5×	1.3k 1.5×	505	16.7k
Hiroshi Yamaguchi Japan	43	4.6k 0.7×	2.4k 0.4×	5.1k 1.4×	1.4k 1.5×	617 0.7×	433	8.0k
Mark J. Kushner United States	68	14.3k 2.1×	3.5k 0.6×	3.1k 0.8×	836 0.9×	751 0.9×	453	17.2k

Countries citing papers authored by Takeshi Ohshima

Since Specialization

Citations

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

Fields of papers citing papers by Takeshi Ohshima

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Takeshi Ohshima

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

Abe, Hiroshi, Takeshi Ohshima, Takuma Sugi, et al.. (2025). Hybrid nanosensors of carbon quantum dots and fluorescent nanodiamonds: Ratiometric thermometry and multicolor sensing. Carbon. 242. 120457–120457. 2 indexed citations

Takashima, Hideaki, et al.. (2025). Creation of Single Tin-Vacancy Color Centers in Small Nanodiamonds. ACS Photonics. 12(9). 4950–4955.

Paik, Seoyoung, et al.. (2024). Classification of Single‐Photon Emitters in Confocal Fluorescence Microscope Images by Deep Convolutional Neural Networks. Advanced Quantum Technologies. 7(11).

Meguro, T., Masayuki Tsutsumi, Akinori Takeyama, et al.. (2024). 4H-SiC 64 pixels CMOS image sensors with 3T/4T-APS arrays. Applied Physics Express. 17(8). 81005–81005. 1 indexed citations

Vidal, Xavier, Marcel Rattunde, Takeshi Ohshima, et al.. (2024). Dual-media laser system: Nitrogen vacancy diamond and red semiconductor laser. Science Advances. 10(39). eadj3933–eadj3933. 3 indexed citations

Scholten, Sam C., Cheng Tan, David A. Broadway, et al.. (2024). Multi-species optically addressable spin defects in a van der Waals material. Nature Communications. 15(1). 6727–6727. 24 indexed citations

Hattar, Khalid, R.J.M. Konings, L. Malerba, & Takeshi Ohshima. (2023). Radiation effects in materials. Journal of Applied Physics. 134(3). 3 indexed citations

Takahashi, H., Yoji Okamoto, Takashi Hamada, et al.. (2023). Soft- and Hard-Error Radiation Reliability of 228 KB $3\mathrm{T}+1\mathrm{C}$ Oxide Semiconductor Memory. 1–6. 2 indexed citations

Candini, Andrea, Vincenzo Guarino, Iriczalli Cruz‐Maya, et al.. (2023). Quantum Sensing and Light Guiding with Fluorescent Nanodiamond‐Doped PVA Fibers. Advanced Optical Materials. 12(14). 3 indexed citations

10.

MASUYAMA, Y., Masashi Miyakawa, Hiroshi Abe, et al.. (2022). Nitrogen related paramagnetic defects: Decoherence source of ensemble of NV− center. Journal of Applied Physics. 132(21). 19 indexed citations

11.

Reineck, Philipp, Nicole M. Cordina, Hiroshi Abe, et al.. (2022). Targeting cell surface glycans with lectin-coated fluorescent nanodiamonds. Nanoscale Advances. 4(6). 1551–1564. 16 indexed citations

12.

Anderson, Christopher P., Alexandre Bourassa, Yu Jin, et al.. (2022). Five-second coherence of a single spin with single-shot readout in silicon carbide. Science Advances. 8(5). eabm5912–eabm5912. 111 indexed citations

13.

Capelli, Marco, Jan Jeske, Hiroshi Abe, et al.. (2022). Proximal nitrogen reduces the fluorescence quantum yield of nitrogen-vacancy centres in diamond. New Journal of Physics. 24(3). 33053–33053. 19 indexed citations

14.

Meguro, T., Akinori Takeyama, Takeshi Ohshima, Yasunori Tanaka, & Shin-Ichiro Kuroki. (2022). Hybrid Pixels With Si Photodiode and 4H-SiC MOSFETs Using Direct Heterogeneous Bonding Toward Radiation Hardened CMOS Image Sensors. IEEE Electron Device Letters. 43(10). 1713–1716. 6 indexed citations

15.

Kato, Masashi, et al.. (2021). Deep levels related to the carbon antisite–vacancy pair in 4H-SiC. Journal of Applied Physics. 130(6). 10 indexed citations

16.

MASUYAMA, Y., Katsumi Suzuki, Mitsuyasu Iwanami, et al.. (2021). Gradiometer Using Separated Diamond Quantum Magnetometers. Sensors. 21(3). 977–977. 14 indexed citations

17.

Widmann, Matthias, Matthias Niethammer, Dmitry Yu. Fedyanin, et al.. (2019). Electrical Charge State Manipulation of Single Silicon Vacancies in a Silicon Carbide Quantum Optoelectronic Device. Nano Letters. 19(10). 7173–7180. 64 indexed citations

18.

Nagy, Roland, Matthias Niethammer, Matthias Widmann, et al.. (2019). High-fidelity spin and optical control of single silicon-vacancy centres in silicon carbide. Nature Communications. 10(1). 1954–1954. 186 indexed citations

19.

Ohshima, Takeshi, Yuuki Ishida, Yasunori Tanaka, et al.. (2004). Relationship between the Current Direction in the Inversion Layer and the Electrical Characteristics of Metal-Oxide-Semiconductor Field Effect Transistors on 3C-SiC. Materials science forum. 457-460. 1405–1408. 2 indexed citations

20.

Kawakita, Shirou, Mitsuru Imaizumi, Masafumi Yamaguchi, et al.. (2002). Annealing Enhancement Effect by Light Illumination on Proton Irradiated Cu(In,Ga)Se_2 Thin-Film Solar Cells : Nuclear Science, Plasmas, and Electric Discharges. Japanese Journal of Applied Physics. 41(7). 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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