R. Lang

4.7k total citations · 2 hit papers
33 papers, 3.6k citations indexed

About

R. Lang is a scholar working on Electrical and Electronic Engineering, Atomic and Molecular Physics, and Optics and Computational Mechanics. According to data from OpenAlex, R. Lang has authored 33 papers receiving a total of 3.6k indexed citations (citations by other indexed papers that have themselves been cited), including 30 papers in Electrical and Electronic Engineering, 27 papers in Atomic and Molecular Physics, and Optics and 2 papers in Computational Mechanics. Recurrent topics in R. Lang's work include Semiconductor Lasers and Optical Devices (24 papers), Photonic and Optical Devices (16 papers) and Semiconductor Quantum Structures and Devices (14 papers). R. Lang is often cited by papers focused on Semiconductor Lasers and Optical Devices (24 papers), Photonic and Optical Devices (16 papers) and Semiconductor Quantum Structures and Devices (14 papers). R. Lang collaborates with scholars based in Japan, United Kingdom and United States. R. Lang's co-authors include Kenichi Kobayashi, Masayasu Ueno, Marlan O. Scully, K. Kobayashi, Willis E. Lamb, Tohya Hiroshima, T. Uji, Kenichi Nishi, Keiichi Kubota and M. Fujiwara and has published in prestigious journals such as Applied Physics Letters, Journal of Applied Physics and Japanese Journal of Applied Physics.

In The Last Decade

R. Lang

33 papers receiving 3.3k citations

Hit Papers

External optical feedback effects on semiconductor inject... 1980 2026 1995 2010 1980 1982 500 1000 1.5k 2.0k
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. External optical feedback effects on semiconductor injection laser properties
    1980 2.1k citations R. Lang et al. IEEE Journal of Quantum Electronics profile →
  2. Injection locking properties of a semiconductor laser
    1982 488 citations R. Lang IEEE Journal of Quantum Electronics profile →

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
R. Lang Japan 18 2.9k 1.9k 688 444 341 33 3.6k
Wolfgang Elsäßer Germany 26 2.2k 0.8× 1.4k 0.7× 1.2k 1.7× 604 1.4× 352 1.0× 133 3.1k
Silvano Donati Italy 33 3.8k 1.3× 2.2k 1.1× 429 0.6× 343 0.8× 172 0.5× 156 4.4k
Vassilios Kovanis United States 31 1.5k 0.5× 1.5k 0.8× 995 1.4× 1.1k 2.5× 308 0.9× 136 3.0k
K.A. Shore United Kingdom 35 3.1k 1.1× 1.3k 0.7× 1.6k 2.3× 1.4k 3.2× 762 2.2× 258 4.6k
D. Lenstra Netherlands 38 4.4k 1.5× 3.0k 1.6× 1.6k 2.3× 800 1.8× 658 1.9× 269 5.9k
K.A. Shore United Kingdom 17 1.3k 0.5× 655 0.3× 887 1.3× 871 2.0× 421 1.2× 104 2.2k
Zheng-Mao Wu China 27 1.6k 0.6× 687 0.4× 856 1.2× 828 1.9× 824 2.4× 191 2.6k
Marc Sciamanna France 33 2.7k 0.9× 1.4k 0.7× 1.5k 2.2× 1.2k 2.7× 995 2.9× 162 4.0k
Junji Ohtsubo Japan 24 1.1k 0.4× 521 0.3× 979 1.4× 765 1.7× 298 0.9× 117 2.2k
Adonis Bogris Greece 28 2.4k 0.8× 1.1k 0.6× 528 0.8× 582 1.3× 643 1.9× 162 2.9k

Countries citing papers authored by R. Lang

Since Specialization
Citations

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

Fields of papers citing papers by R. Lang

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of R. Lang

This figure shows the co-authorship network connecting the top 25 collaborators of R. Lang. A scholar is included among the top collaborators of R. Lang 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 R. Lang. R. Lang 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.
Vail, E.C., S. O’Brien, M. Ziari, & R. Lang. (2002). Semiconductor lasers with 2.5 Gb/s operation at 200°C. 83–84. 2 indexed citations
2.
Lang, R., M. Mittelstein, A. Yariv, & J. Salzman. (1987). Unstable resonator semiconductor lasers. I: Theory. 134(1). 69–75. 2 indexed citations
3.
Hiroshima, Tohya & R. Lang. (1986). Well size dependence of Stark shifts for heavy-hole and light-hole levels in GaAs/AlGaAs quantum wells. Applied Physics Letters. 49(11). 639–641. 15 indexed citations
4.
Hiroshima, Tohya & R. Lang. (1986). Effect of conduction-band nonparabolicity on quantized energy levels of a quantum well. Applied Physics Letters. 49(8). 456–457. 55 indexed citations
5.
Nishi, Kenichi & R. Lang. (1985). Lateral Mode Localization in Multistripe Laser Diode. Japanese Journal of Applied Physics. 24(5A). L349–L349. 1 indexed citations
6.
Ueno, Masayasu & R. Lang. (1985). Conditions for self-sustained pulsation and bistability in semiconductor lasers. Journal of Applied Physics. 58(4). 1689–1692. 151 indexed citations
7.
Lang, R. & Kenichi Nishi. (1984). Electronic state localization in semiconductor superlattices. Applied Physics Letters. 45(1). 98–100. 36 indexed citations
8.
Sugimoto, M., Akira Suzuki, Hikaru Nomura, & R. Lang. (1984). InGaAsP InP current confinement mesa substrate buried heterostructure laser diode fabricated by one-step liquid-phase epitaxy. Journal of Lightwave Technology. 2(4). 496–503. 9 indexed citations
9.
Kato, Yoshitake, I. Mito, Masayuki Yamaguchi, et al.. (1983). 1.3 μm InGaAsP/InP multiquantum-well lasers grown by vapour-phase epitaxy. Electronics Letters. 19(17). 700–701. 21 indexed citations
10.
Lang, R.. (1982). Injection locking properties of a semiconductor laser. IEEE Journal of Quantum Electronics. 18(6). 976–983. 488 indexed citations breakdown →
11.
Kobayashi, K., Hiroyuki Nishimoto, & R. Lang. (1982). Experimental observation of asymmetric detuning characteristics in semiconductor laser injection locking. Electronics Letters. 18(2). 54–56. 33 indexed citations
12.
Ueno, Masayasu, et al.. (1982). Optimum designs for InGaAsP/InP (λ = 1.3μm) planoconvex waveguide lasers under lasing conditions. IEE Proceedings I Solid State and Electron Devices. 129(6). 218–218. 1 indexed citations
13.
14.
Fujiwara, M., Keiichi Kubota, & R. Lang. (1981). Low-frequency intensity fluctuation in laser diodes with external optical feedback. Applied Physics Letters. 38(4). 217–220. 45 indexed citations
15.
Lang, R.. (1979). Lateral transverse mode instability and its stabilization in stripe geometry injection lasers. IEEE Journal of Quantum Electronics. 15(8). 718–726. 96 indexed citations
16.
Kobayashi, K., et al.. (1977). Horizontal Mode Deformation and Anomalous Lasing Properties of Stripe Geometry Injection Lasers–Experiment. Japanese Journal of Applied Physics. 16(1). 207–208. 38 indexed citations
17.
Lang, R., et al.. (1977). Low-frequency intensity noise in c.w. (GaAl)As d.h. lasers with stripe geometry. Electronics Letters. 13(8). 228–230. 8 indexed citations
18.
Kobayashi, K., et al.. (1976). Invited: Novel Optical Methods for High Speed Direct Modulation of Semiconductor Lasers. Japanese Journal of Applied Physics. 15(S1). 281–281. 5 indexed citations
19.
Kobayashi, K., et al.. (1975). NOVEL OPTICAL METHODS FOR HIGH SPEED DIRECT MODULATION OF SEMICONDUCTOR LASERS. 7 indexed citations
20.
Lang, R. & K. Kobayashi. (1975). Suppression of relaxation oscillation in semiconductor lasers. IEEE Journal of Quantum Electronics. 11(9). 882–882. 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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