W. Schäfer

987 total citations
20 papers, 747 citations indexed

About

W. Schäfer is a scholar working on Atomic and Molecular Physics, and Optics, Electrical and Electronic Engineering and Condensed Matter Physics. According to data from OpenAlex, W. Schäfer has authored 20 papers receiving a total of 747 indexed citations (citations by other indexed papers that have themselves been cited), including 19 papers in Atomic and Molecular Physics, and Optics, 3 papers in Electrical and Electronic Engineering and 1 paper in Condensed Matter Physics. Recurrent topics in W. Schäfer's work include Semiconductor Quantum Structures and Devices (17 papers), Spectroscopy and Quantum Chemical Studies (13 papers) and Laser-Matter Interactions and Applications (6 papers). W. Schäfer is often cited by papers focused on Semiconductor Quantum Structures and Devices (17 papers), Spectroscopy and Quantum Chemical Studies (13 papers) and Laser-Matter Interactions and Applications (6 papers). W. Schäfer collaborates with scholars based in Germany, United States and South Korea. W. Schäfer's co-authors include D. S. Chemla, T. C. Damen, S. Schmitt‐Rink, Karl Leo, E. O. Göbel, Martin Wegener, Michael Hartmann, K. Henneberger, K. Köhler and Jagdeep Shah and has published in prestigious journals such as Physical Review Letters, Physical review. B, Condensed matter and Surface Science.

In The Last Decade

W. Schäfer

20 papers receiving 731 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
W. Schäfer Germany 12 718 211 94 94 49 20 747
G. O. Smith Germany 9 488 0.7× 175 0.8× 81 0.9× 71 0.8× 29 0.6× 10 504
J. F. Müller Germany 7 463 0.6× 134 0.6× 51 0.5× 54 0.6× 35 0.7× 9 479
M. U. Wehner Germany 8 441 0.6× 139 0.7× 49 0.5× 45 0.5× 37 0.8× 14 476
A. Honold Germany 9 813 1.1× 269 1.3× 97 1.0× 172 1.8× 45 0.9× 15 895
D. J. Eilenberger United States 9 625 0.9× 479 2.3× 48 0.5× 79 0.8× 28 0.6× 15 701
Ann Cho United States 4 559 0.8× 373 1.8× 64 0.7× 66 0.7× 46 0.9× 6 607
Hasan Yıldırım Türkiye 11 339 0.5× 134 0.6× 44 0.5× 132 1.4× 58 1.2× 31 442
O. Munteanu United States 7 890 1.2× 511 2.4× 66 0.7× 233 2.5× 36 0.7× 7 921
D. Bennhardt Germany 8 502 0.7× 130 0.6× 90 1.0× 67 0.7× 36 0.7× 10 511

Countries citing papers authored by W. Schäfer

Since Specialization
Citations

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

Fields of papers citing papers by W. Schäfer

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of W. Schäfer

This figure shows the co-authorship network connecting the top 25 collaborators of W. Schäfer. A scholar is included among the top collaborators of W. Schäfer 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 W. Schäfer. W. Schäfer 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.
Schäfer, W.. (2002). Determination of perturbed orbits from two positions and three observations. 500. 339–343. 3 indexed citations
2.
Lövenich, R., Chih‐Wei Lai, D. Hägele, D. S. Chemla, & W. Schäfer. (2002). Semiconductor polarization dynamics from the coherent to the incoherent regime: Theory and experiment. Physical review. B, Condensed matter. 66(4). 13 indexed citations
3.
Schäfer, W., R. Lövenich, Neil A. Fromer, & D. S. Chemla. (2001). From Coherently Excited Highly Correlated States to Incoherent Relaxation Processes in Semiconductors. Physical Review Letters. 86(2). 344–347. 22 indexed citations
4.
Kner, Peter, S. Bar‐Ad, M. V. Marquezini, D. S. Chemla, & W. Schäfer. (1997). Magnetically Enhanced Exciton-Exciton Correlations in Semiconductors. Physical Review Letters. 78(7). 1319–1322. 91 indexed citations
5.
Lövenich, R., W. Schäfer, Peter Kner, & D. S. Chemla. (1997). Theory of Coherently Driven Biexcitons in Strong Magnetic Fields. physica status solidi (a). 164(1). 347–351. 9 indexed citations
6.
Schäfer, W., Jagdeep Shah, T. C. Damen, et al.. (1996). Femtosecond coherent fields induced by many-particle correlations in transient four-wave mixing. Physical review. B, Condensed matter. 53(24). 16429–16443. 74 indexed citations
7.
Schäfer, W., et al.. (1996). Quantum kinetics of coherent optical phonons in semiconductors — Non-Markovian behaviour induced by anharmonic renormalization. Physica B Condensed Matter. 219-220. 408–410. 1 indexed citations
8.
Schäfer, W., et al.. (1995). Microscopic theory of the dephasing of coherent optical phonons due to anharmonic decay in polar semiconductors. physica status solidi (b). 188(1). 425–434. 3 indexed citations
9.
Mohs, G., et al.. (1994). Coherent dynamics of continuum and bound states in germanium. Semiconductor Science and Technology. 9(5S). 422–424. 1 indexed citations
10.
Pfeiffer, L. N., et al.. (1994). Femtosecond time-resolved four-wave mixing from biexcitons in GaAs quantum wells: Dominance of the interaction-induced signal. Physical review. B, Condensed matter. 50(8). 5775–5778. 21 indexed citations
11.
Feldmann, Jochen, Martín Koch, E. O. Göbel, et al.. (1994). Coherent dynamics of exciton wavepackets in semiconductor heterostructures. Semiconductor Science and Technology. 9(11S). 1965–1971. 1 indexed citations
12.
Fischer, A. J., C. P. Hays, W. Shan, et al.. (1994). Femtosecond Coherent Spectroscopy of Bulk ZnSe and ZnCdSe/ZnSe Quantum Wells. Physical Review Letters. 73(17). 2368–2371. 53 indexed citations
13.
Wegener, Martin, et al.. (1993). Coherent dynamics of continuum and exciton states studied by spectrally resolved fs four-wave mixing. Physical review. B, Condensed matter. 48(7). 4879–4882. 41 indexed citations
14.
Jahnke, F., K. Henneberger, W. Schäfer, & S. W. Koch. (1993). Transient nonequilibrium and many-body effects in semiconductor microcavity lasers. Journal of the Optical Society of America B. 10(12). 2394–2394. 20 indexed citations
15.
Shah, Jagdeep, Karl Leo, E. O. Göbel, et al.. (1992). Quantum beats of excitons in quantum wells. Surface Science. 267(1-3). 304–309. 9 indexed citations
16.
Hartmann, Michael & W. Schäfer. (1992). Real Time Approach to Relaxation and Dephasing Processes in Semiconductors. physica status solidi (b). 173(1). 165–176. 45 indexed citations
17.
Leo, Karl, E. O. Göbel, T. C. Damen, et al.. (1991). Subpicosecond four-wave mixing in GaAs/AlxGa1−xAs quantum wells. Physical review. B, Condensed matter. 44(11). 5726–5737. 87 indexed citations
18.
Leo, Karl, Martin Wegener, D. S. Chemla, et al.. (1990). Effects of coherent polarization interactions on time-resolved degenerate four-wave mixing. Physical Review Letters. 65(11). 1340–1343. 221 indexed citations
19.
Schäfer, W., et al.. (1990). Laser excitation and relaxation processes of electron-hole pairs in gallium arsenide on a 100 fs time scale. Journal of Luminescence. 45(1-6). 211–214. 1 indexed citations
20.
Schäfer, W. & K. Henneberger. (1990). Pulse Propagation and Carrier Kinetics in Laser Excited Semiconductors. physica status solidi (b). 159(1). 59–69. 31 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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