A. Gerhardt

1.2k total citations
27 papers, 462 citations indexed

About

A. Gerhardt is a scholar working on Electrical and Electronic Engineering, Atomic and Molecular Physics, and Optics and Materials Chemistry. According to data from OpenAlex, A. Gerhardt has authored 27 papers receiving a total of 462 indexed citations (citations by other indexed papers that have themselves been cited), including 24 papers in Electrical and Electronic Engineering, 23 papers in Atomic and Molecular Physics, and Optics and 6 papers in Materials Chemistry. Recurrent topics in A. Gerhardt's work include Semiconductor Quantum Structures and Devices (19 papers), Semiconductor Lasers and Optical Devices (12 papers) and Photonic and Optical Devices (6 papers). A. Gerhardt is often cited by papers focused on Semiconductor Quantum Structures and Devices (19 papers), Semiconductor Lasers and Optical Devices (12 papers) and Photonic and Optical Devices (6 papers). A. Gerhardt collaborates with scholars based in Germany, United States and Russia. A. Gerhardt's co-authors include Н.В. Абросимов, S. N. Rossolenko, Wolfgang P. Schröder, Jens W. Tomm, Thomas Elsaesser, V. Alex, A. Bärwolff, Roland Müller, Mark L. Biermann and A. Jaeger and has published in prestigious journals such as Applied Physics Letters, Journal of Applied Physics and Journal of Crystal Growth.

In The Last Decade

A. Gerhardt

25 papers receiving 439 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
A. Gerhardt Germany 12 361 234 176 76 47 27 462
T.T. Braggins United States 12 398 1.1× 210 0.9× 177 1.0× 39 0.5× 87 1.9× 20 559
John Mazurowski United States 11 233 0.6× 169 0.7× 183 1.0× 36 0.5× 47 1.0× 41 418
G. Grossmann Sweden 8 262 0.7× 228 1.0× 155 0.9× 95 1.3× 25 0.5× 25 439
O. K. Wu United States 17 585 1.6× 404 1.7× 151 0.9× 33 0.4× 44 0.9× 58 648
M. Schürmann Germany 11 198 0.5× 82 0.4× 110 0.6× 41 0.5× 24 0.5× 40 364
I. Jenčič Slovenia 9 205 0.6× 83 0.4× 184 1.0× 154 2.0× 34 0.7× 20 376
R. A. Lux United States 18 515 1.4× 271 1.2× 317 1.8× 61 0.8× 161 3.4× 40 720
L. Correrá Italy 10 377 1.0× 246 1.1× 156 0.9× 126 1.7× 64 1.4× 40 547
C. Ascheron Germany 14 383 1.1× 186 0.8× 207 1.2× 278 3.7× 35 0.7× 46 586
J. Klatt United States 12 403 1.1× 293 1.3× 181 1.0× 99 1.3× 53 1.1× 30 511

Countries citing papers authored by A. Gerhardt

Since Specialization
Citations

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

Fields of papers citing papers by A. Gerhardt

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of A. Gerhardt

This figure shows the co-authorship network connecting the top 25 collaborators of A. Gerhardt. A scholar is included among the top collaborators of A. Gerhardt 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 A. Gerhardt. A. Gerhardt 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.
Gerhardt, A., et al.. (2005). Screening of high-power diode laser bars by optical scanning. Applied Physics Letters. 87(21). 2 indexed citations
2.
Gerhardt, A., et al.. (2005). Relaxation of packaging-induced strains in AlGaAs-based high-power diode laser arrays. Applied Physics Letters. 86(10). 4 indexed citations
3.
Biermann, Mark L., et al.. (2004). Dependence on intrinsic strain of packaging-induced strain in quantum-well laser diodes. Conference on Lasers and Electro-Optics. 1. 1 indexed citations
4.
Tomm, Jens W., V. V. Strelchuk, A. Gerhardt, et al.. (2004). Properties of As+-implanted and annealed GaAs and InGaAs quantum wells: Structural and band-structure modifications. Journal of Applied Physics. 95(3). 1122–1126. 8 indexed citations
5.
Biermann, Mark L., et al.. (2004). Spectroscopic method of strain analysis in semiconductor quantum-well devices. Journal of Applied Physics. 96(8). 4056–4065. 18 indexed citations
6.
7.
Tomm, Jens W., et al.. (2003). Quantitative strain analysis in AlGaAs-based devices. Applied Physics Letters. 82(23). 4193–4195. 20 indexed citations
8.
Tomm, Jens W., A. Gerhardt, Roland Müller, et al.. (2003). Spatially resolved spectroscopic strain measurements on high-power laser diode bars. Journal of Applied Physics. 93(3). 1354–1362. 24 indexed citations
9.
Gerhardt, A., et al.. (2002). Measurement of mounting-induced strain and defects in high-power laser diodes using Fourier-transform photo-current spectroscopy. Materials Science and Engineering B. 91-92. 476–480. 3 indexed citations
10.
Tomm, Jens W., et al.. (2000). Near-field photocurrent spectroscopy of laser diode devices. Journal of Crystal Growth. 210(1-3). 296–302. 7 indexed citations
11.
Tomm, Jens W., et al.. (1999). Direct spectroscopic measurement of packaging-induced strains in high-power laser diode arrays. Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE. 3626. 138–138. 1 indexed citations
12.
Tomm, Jens W., et al.. (1998). Direct spectroscopic measurement of mounting-induced strain in high-power optoelectronic devices. Applied Physics Letters. 73(26). 3908–3910. 27 indexed citations
13.
Tomm, Jens W., A. Bärwolff, A. Jaeger, et al.. (1998). Deep level spectroscopy of high-power laser diode arrays. Journal of Applied Physics. 84(3). 1325–1332. 16 indexed citations
14.
Ganschow, Steffen, et al.. (1997). <title>Terbium scandium aluminum garnet: a new efficient material for Faraday rotators?</title>. Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE. 3178. 55–58. 10 indexed citations
15.
Абросимов, Н.В., S. N. Rossolenko, V. Alex, A. Gerhardt, & Wolfgang P. Schröder. (1996). Single crystal growth of Si1 − Ge by the Czochralski technique. Journal of Crystal Growth. 166(1-4). 657–662. 92 indexed citations
16.
Juda, Uta, et al.. (1996). Oxygen-related 1-platinum defects in silicon: An electron paramagnetic resonance study. Journal of Applied Physics. 80(6). 3435–3444. 11 indexed citations
17.
Gerhardt, A.. (1996). No-Phonon and Phonon-Assisted Indirect Transitions in Si1−xGex Single Crystals. MRS Proceedings. 450. 2 indexed citations
18.
Höhne, M., et al.. (1995). Electron Paramagnetic Resonance of Phosphorus, Platinum, and Iron in Float Zone Si<sub>1-x</sub> Ge<sub>x</sub> Crystals. Materials science forum. 196-201. 359–364. 9 indexed citations
19.
Gerhardt, A., et al.. (1994). Optical determination of the composition of bulk SiGe monocrystals. Materials Science and Engineering B. 28(1-3). 18–20. 13 indexed citations
20.
Frohberg, Martin G., et al.. (1964). Fehlerquellen bei der Bestimmung des Sauerstoffgehaltes von aluminiumberuhigten Stahlproben. Archiv für das Eisenhüttenwesen. 35(1). 39–44. 5 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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