Koichi Wakita

1.8k total citations
88 papers, 1.4k citations indexed

About

Koichi Wakita is a scholar working on Electrical and Electronic Engineering, Atomic and Molecular Physics, and Optics and Materials Chemistry. According to data from OpenAlex, Koichi Wakita has authored 88 papers receiving a total of 1.4k indexed citations (citations by other indexed papers that have themselves been cited), including 63 papers in Electrical and Electronic Engineering, 50 papers in Atomic and Molecular Physics, and Optics and 31 papers in Materials Chemistry. Recurrent topics in Koichi Wakita's work include Semiconductor Quantum Structures and Devices (36 papers), Semiconductor Lasers and Optical Devices (25 papers) and Graphene research and applications (19 papers). Koichi Wakita is often cited by papers focused on Semiconductor Quantum Structures and Devices (36 papers), Semiconductor Lasers and Optical Devices (25 papers) and Graphene research and applications (19 papers). Koichi Wakita collaborates with scholars based in Japan, Nepal and United Kingdom. Koichi Wakita's co-authors include Masayoshi Umeno, Golap Kalita, Makoto Takahashi, Yuichi Kawamura, I. Kotaka, H. Asahi, Masaki Tanemura, Mitsuo Fukuda, Hideo Uchida and Shunji Nojima and has published in prestigious journals such as SHILAP Revista de lepidopterología, Applied Physics Letters and Journal of Applied Physics.

In The Last Decade

Koichi Wakita

84 papers receiving 1.4k citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Koichi Wakita Japan 22 878 690 570 325 152 88 1.4k
D. R. Hines United States 21 790 0.9× 725 1.1× 600 1.1× 450 1.4× 231 1.5× 47 1.6k
Feridun Ay Türkiye 22 1.2k 1.4× 1.0k 1.5× 602 1.1× 254 0.8× 132 0.9× 78 1.8k
A. Ulyashin Norway 20 1.2k 1.4× 1.1k 1.6× 299 0.5× 223 0.7× 175 1.2× 169 1.7k
R. Hillebrand Germany 17 413 0.5× 768 1.1× 415 0.7× 278 0.9× 134 0.9× 59 1.1k
G. Couturier France 19 761 0.9× 778 1.1× 429 0.8× 207 0.6× 102 0.7× 75 1.4k
Thomas Mühl Germany 22 433 0.5× 982 1.4× 638 1.1× 225 0.7× 236 1.6× 62 1.5k
G. Attolini Italy 20 876 1.0× 646 0.9× 368 0.6× 326 1.0× 156 1.0× 157 1.3k
Morteza Fathipour Iran 22 901 1.0× 703 1.0× 235 0.4× 377 1.2× 85 0.6× 127 1.4k
David T. Danielson United States 12 1.1k 1.2× 512 0.7× 463 0.8× 331 1.0× 131 0.9× 23 1.4k
Shawn-Yu Lin United States 10 403 0.5× 408 0.6× 348 0.6× 428 1.3× 252 1.7× 16 1.1k

Countries citing papers authored by Koichi Wakita

Since Specialization
Citations

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

Fields of papers citing papers by Koichi Wakita

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Koichi Wakita

This figure shows the co-authorship network connecting the top 25 collaborators of Koichi Wakita. A scholar is included among the top collaborators of Koichi Wakita 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 Koichi Wakita. Koichi Wakita 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.
Nene, Ajinkya, Makoto Takahashi, Prakash R. Somani, et al.. (2016). Synthesis and characterization of graphene-Fe3O4 nanocomposite. SHILAP Revista de lepidopterología. 6 indexed citations
2.
Aryal, Hare Ram, Sudip Adhikari, Hideo Uchida, Koichi Wakita, & Masayoshi Umeno. (2016). Nitrogen Doping of Graphene. The Japan Society of Applied Physics. 1 indexed citations
3.
Takahashi, Makoto, et al.. (2014). Proposed Model of Electric Field Effects in High-Purity GaAs at Room Temperature. Optics and Photonics Journal. 4(5). 99–103. 1 indexed citations
4.
Takahashi, Makoto, et al.. (2013). Plastic Forming of High‐ T c YBa 2 Cu 3 O 7 − x Bulk Superconductors. Journal of the American Ceramic Society. 96(6). 1713–1717. 4 indexed citations
5.
Kalita, Golap, Subash Sharma, Koichi Wakita, et al.. (2012). Synthesis of graphene by surface wave plasma chemical vapor deposition from camphor. physica status solidi (a). 209(12). 2510–2513. 18 indexed citations
6.
Kalita, Golap, Koichi Wakita, & Masayoshi Umeno. (2011). Monolayer graphene from a green solid precursor. Physica E Low-dimensional Systems and Nanostructures. 43(8). 1490–1493. 35 indexed citations
7.
Takahashi, Makoto, et al.. (2002). Heteroepitaxial growth of CdTe on a p-Si(111) substrate by pulsed-light-assisted electrodeposition. Applied Physics Letters. 80(12). 2117–2119. 15 indexed citations
8.
Wakita, Koichi, K. Yoshino, Akira Hirano, Susumu Kondo, & Yoshio Noguchi. (1998). Very-High-Speed and Low Driving-Voltage Modulator Modules for a Short Optical Pulse Generation. IEICE Transactions on Electronics. 81(2). 175–179. 1 indexed citations
9.
10.
Yoshimoto, Naoto, Susumu Kondo, Yoshio Noguchi, Takayuki Yamanaka, & Koichi Wakita. (1996). Polarization-insensitive field-induced refractive index change using a lattice-matched InGaAlAs/InAlAs multiple quantum well structure. Applied Physics Letters. 69(27). 4239–4241. 4 indexed citations
11.
Yamanaka, Takayuki, Koichi Wakita, & Kiyoyuki Yokoyama. (1996). Potential chirp-free characteristics (negative chirp parameter) in electroabsorption modulation using a wide tensile-strained quantum well structure. Applied Physics Letters. 68(22). 3114–3116. 23 indexed citations
12.
Wakita, Koichi, et al.. (1995). Short Optical Pulse Generation and Modulation by a Multi-Section MQW Modulator/DFB Laser Integrated Light Source. IEICE Transactions on Electronics. 78(1). 50–54. 1 indexed citations
13.
Sato, K., Koichi Wakita, I. Kotaka, et al.. (1994). Monolithic strained-InGaAsP multiple-quantum-well lasers with integrated electroabsorption modulators for active mode locking. Applied Physics Letters. 65(1). 1–3. 83 indexed citations
14.
Wakita, Koichi, et al.. (1990). High speed InGaAs/InAlAs multiple qoantnin well optical modulators with bandwidths in excess of 40 GHz at 1.55 μm. Conference on Lasers and Electro-Optics. 13 indexed citations
15.
Wakita, Koichi, et al.. (1987). Observation of Low Chirp Modulation in Long Wavelength InGaAs/InAlAs Multiple-Quantum-Well Optical Modulators. Japanese Journal of Applied Physics. 26(10A). L1629–L1629. 10 indexed citations
16.
Kawamura, Yuichi, Koichi Wakita, H. Asahi, & K. Kurumada. (1986). Observation of Room Temperature Current Oscillation in InGaAs/InAlAs MQW Pin Diodes. Japanese Journal of Applied Physics. 25(11A). L928–L928. 47 indexed citations
17.
Seki, Masahiro, Mitsuo Fukuda, & Koichi Wakita. (1982). Degraded InGaAsP/InP double heterostructure laser observation with electron probe microanalyzer. Applied Physics Letters. 40(2). 115–117. 16 indexed citations
18.
Fukuda, Mitsuo, Koichi Wakita, & G. Iwane. (1981). Self-Sustained Pulsation Appearance in InGaAsP/InP DH Lasers during Accelerated Operation. Japanese Journal of Applied Physics. 20(2). L153–L153. 5 indexed citations
19.
Ueda, Osamu, et al.. (1979). TEM observation of catastrophically degraded Ga1−xAlxAs double-heterostructure lasers. Journal of Applied Physics. 50(11). 6643–6647. 11 indexed citations
20.
Furukawa, Yoshitaka, Takeshi Kobayashi, Koichi Wakita, et al.. (1977). Accelerated Life Test of AlGaAs–GaAs DH Lasers. Japanese Journal of Applied Physics. 16(8). 1495–1496. 29 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.

Explore authors with similar magnitude of impact

Breakdown of academic impact, for papers by D. R. Hines Breakdown of academic impact, for papers by Feridun Ay Breakdown of academic impact, for papers by A. Ulyashin Breakdown of academic impact, for papers by R. Hillebrand Breakdown of academic impact, for papers by G. Couturier Breakdown of academic impact, for papers by Thomas Mühl Breakdown of academic impact, for papers by G. Attolini Breakdown of academic impact, for papers by Morteza Fathipour Breakdown of academic impact, for papers by David T. Danielson Breakdown of academic impact, for papers by Shawn-Yu Lin
Rankless by CCL
2026