I. Hayashi

2.6k total citations · 1 hit paper
41 papers, 1.8k citations indexed

About

I. Hayashi is a scholar working on Electrical and Electronic Engineering, Atomic and Molecular Physics, and Optics and Condensed Matter Physics. According to data from OpenAlex, I. Hayashi has authored 41 papers receiving a total of 1.8k indexed citations (citations by other indexed papers that have themselves been cited), including 32 papers in Electrical and Electronic Engineering, 22 papers in Atomic and Molecular Physics, and Optics and 3 papers in Condensed Matter Physics. Recurrent topics in I. Hayashi's work include Semiconductor Lasers and Optical Devices (20 papers), Semiconductor Quantum Structures and Devices (19 papers) and Solid State Laser Technologies (10 papers). I. Hayashi is often cited by papers focused on Semiconductor Lasers and Optical Devices (20 papers), Semiconductor Quantum Structures and Devices (19 papers) and Solid State Laser Technologies (10 papers). I. Hayashi collaborates with scholars based in Japan, United States and Singapore. I. Hayashi's co-authors include M. B. Panish, S. Sumski, P. W. Foy, F. K. Reinhart, B.I. Miller, Taibun Kamejima, H. Yonezu, Masayasu Ueno, B. Schwartz and F. Ermanis and has published in prestigious journals such as Applied Physics Letters, Journal of Applied Physics and Proceedings of the IEEE.

In The Last Decade

I. Hayashi

40 papers receiving 1.3k citations

Hit Papers

JUNCTION LASERS WHICH OPERATE CONTINUOUSLY AT ROOM TEMPER... 1970 2026 1988 2007 1970 100 200 300
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.

  1. JUNCTION LASERS WHICH OPERATE CONTINUOUSLY AT ROOM TEMPERATURE
    1970 370 citations I. Hayashi, M. B. Panish et al. Applied Physics Letters profile →

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
I. Hayashi Japan 23 1.5k 1.3k 282 157 117 41 1.8k
Marshall I. Nathan United States 24 1.1k 0.7× 836 0.6× 458 1.6× 79 0.5× 94 0.8× 38 1.7k
J. P. André France 22 934 0.6× 1.1k 0.9× 287 1.0× 27 0.2× 218 1.9× 76 1.5k
G. A. Antypas United States 23 1.0k 0.7× 963 0.7× 222 0.8× 24 0.2× 123 1.1× 46 1.4k
T. E. Zipperian United States 23 1.2k 0.8× 851 0.7× 275 1.0× 35 0.2× 211 1.8× 89 1.6k
L. W. James United States 20 720 0.5× 675 0.5× 231 0.8× 41 0.3× 111 0.9× 42 1.3k
K. C. Hsieh United States 24 1.1k 0.8× 1.2k 0.9× 335 1.2× 32 0.2× 217 1.9× 84 1.5k
T. Tomimasu Japan 14 504 0.3× 309 0.2× 201 0.7× 45 0.3× 43 0.4× 139 1.0k
Kenji Kajiyama Japan 19 831 0.6× 464 0.4× 305 1.1× 22 0.1× 47 0.4× 81 1.2k
Robert K. Willardson United States 15 518 0.3× 609 0.5× 307 1.1× 117 0.7× 60 0.5× 37 950
Thierry Robin France 24 1.9k 1.3× 1.1k 0.8× 354 1.3× 48 0.3× 52 0.4× 164 2.3k

Countries citing papers authored by I. Hayashi

Since Specialization
Citations

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

Fields of papers citing papers by I. Hayashi

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of I. Hayashi

This figure shows the co-authorship network connecting the top 25 collaborators of I. Hayashi. A scholar is included among the top collaborators of I. Hayashi 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 I. Hayashi. I. Hayashi 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.
Khanna, A., Zhi Peng Ling, Vinodh Shanmugam, et al.. (2013). Screen Printed Metallisation for Silicon Heterojunction Solar Cells. EU PVSEC. 1336–1339. 4 indexed citations
2.
Hayashi, I., Makoto Hirano, & Yoshifumi Katayama. (1989). Collaborative semiconductor research in Japan. Proceedings of the IEEE. 77(9). 1430–1441. 2 indexed citations
3.
Yonezu, H., I. Sakuma, Taibun Kamejima, et al.. (1979). High optical power density emission from a ’’window-stripe’’ AlGaAs double-heterostructure laser. Applied Physics Letters. 34(10). 637–639. 22 indexed citations
4.
Ishitani, Akihiko, et al.. (1978). Second harmonic generation in a sputtered LiNbO3 film on MgO. Journal of Crystal Growth. 45. 355–360. 26 indexed citations
5.
Yonezu, H., I. Sakuma, Taibun Kamejima, et al.. (1974). Degradation mechanism of (Al · Ga)As double-heterostructure laser diodes. Applied Physics Letters. 24(1). 18–19. 64 indexed citations
6.
Nannichi, Yasuo & I. Hayashi. (1974). Degradation of (Ga·Al)As double heterostructure diode lasers. Journal of Crystal Growth. 27. 126–132. 20 indexed citations
7.
Miller, B.I., et al.. (1973). Additional data on the effect of doping on the lasing characteristics of GaAs AlxGa1-xAs double-heterostructure lasers. IEEE Journal of Quantum Electronics. 9(2). 281–282. 28 indexed citations
8.
Yonezu, H., I. Sakuma, Takashi Kameshima, et al.. (1973). Degradation of AlxGa1-xAs double heterostructure lasers. IEEE Transactions on Electron Devices. 20(12). 1175–1175. 1 indexed citations
9.
Hayashi, I.. (1973). Progress of semiconductor lasers in japan. IEEE Journal of Quantum Electronics. 9(6). 687–688. 4 indexed citations
10.
Miller, B.I., et al.. (1972). GaAs–AlxGa1−xAs Double Heterostructure Lasers—Effect of Doping on Lasing Characteristics of GaAs. Journal of Applied Physics. 43(6). 2827–2835. 81 indexed citations
11.
Miller, B.I., et al.. (1972). Reproducible Liquid-Phase-Epitaxial Growth of Double Heterostructure GaAs–AlxGa1−xAs Laser Diodes. Journal of Applied Physics. 43(6). 2817–2826. 52 indexed citations
12.
Hayashi, I., et al.. (1971). Epitaxy of silicon doped gallium arsenide by molecular beam method. Metallurgical Transactions. 2(3). 777–780. 37 indexed citations
13.
Miller, B.I., et al.. (1971). Highly Uniform Alx Ga1−x As Double-Heterostructure Lasers and Their Characteristics at Room Temperature. Applied Physics Letters. 19(9). 340–343. 17 indexed citations
14.
Reinhart, F. K., I. Hayashi, & M. B. Panish. (1971). Mode Reflectivity and Waveguide Properties of Double-Heterostructure Injection Lasers. Journal of Applied Physics. 42(11). 4466–4479. 102 indexed citations
15.
Hayashi, I., M. B. Panish, P. W. Foy, & S. Sumski. (1970). JUNCTION LASERS WHICH OPERATE CONTINUOUSLY AT ROOM TEMPERATURE. Applied Physics Letters. 17(3). 109–111. 370 indexed citations breakdown →
16.
Ermanis, F., et al.. (1970). Germanium-Doped Gallium Arsenide. Journal of Applied Physics. 41(1). 264–270. 78 indexed citations
17.
Hayashi, I., et al.. (1970). Internal<tex>Q</tex>switching in GaAs- Ga<inf>x</inf>Al<inf>1-x</inf>As heterostructure lasers. IEEE Journal of Quantum Electronics. 6(6). 297–299. 27 indexed citations
18.
Hayashi, I., et al.. (1969). [Studies on the treatment of experimental renal tumors induced by dimethylnitrosamine. I. The effects of mitomycin C, 5-fluorouracil, 3-methyl-cholanthrene, alpha-naphthyl-isothiocyanate and diethylstilbestrol on experimentally induced renal tumors].. PubMed. 15(2). 79–86. 1 indexed citations
19.
Panish, M. B., I. Hayashi, & S. Sumski. (1969). A technique for the preparation of low-threshold room-temperature GaAs laser diode structures. IEEE Journal of Quantum Electronics. 5(4). 210–211. 55 indexed citations
20.
Hayashi, I., et al.. (1966). A Modular Set of Analog Microcircuits Intended for Satellite Experiments. IEEE Transactions on Nuclear Science. 13(1). 326–335. 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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