Hirohiko Hirasawa

About

Hirohiko Hirasawa is a scholar working on Condensed Matter Physics, Materials Chemistry and Atomic and Molecular Physics, and Optics. According to data from OpenAlex, Hirohiko Hirasawa has authored 8 papers receiving a total of 334 indexed citations (citations by other indexed papers that have themselves been cited), including 8 papers in Condensed Matter Physics, 5 papers in Materials Chemistry and 5 papers in Atomic and Molecular Physics, and Optics. Recurrent topics in Hirohiko Hirasawa’s work include GaN-based semiconductor devices and materials (8 papers), ZnO doping and properties (5 papers) and Semiconductor Quantum Structures and Devices (5 papers). Hirohiko Hirasawa is often cited by papers focused on GaN-based semiconductor devices and materials (8 papers), ZnO doping and properties (5 papers) and Semiconductor Quantum Structures and Devices (5 papers). Hirohiko Hirasawa collaborates with scholars based in United States, Japan and Germany. Hirohiko Hirasawa's co-authors include Natalie Fellows, Steven P. DenBaars, Shuji Nakamura, James S. Speck, Makoto Saitô, Kenji Fujito, Hisashi Masui, Hitoshi Sato, Kenji Iso and Hisashi Yamada and has published in prestigious journals such as Applied Physics Letters, Japanese Journal of Applied Physics and physica status solidi (a).

In The Last Decade

Co-authorship network of co-authors of Hirohiko Hirasawa i

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Fields of papers citing papers by Hirohiko Hirasawa

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Countries citing papers authored by Hirohiko Hirasawa

Since Specialization

Citations

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

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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