H. Gerhardt

674 total citations
32 papers, 513 citations indexed

About

H. Gerhardt is a scholar working on Atomic and Molecular Physics, and Optics, Spectroscopy and Electrical and Electronic Engineering. According to data from OpenAlex, H. Gerhardt has authored 32 papers receiving a total of 513 indexed citations (citations by other indexed papers that have themselves been cited), including 25 papers in Atomic and Molecular Physics, and Optics, 14 papers in Spectroscopy and 13 papers in Electrical and Electronic Engineering. Recurrent topics in H. Gerhardt's work include Spectroscopy and Laser Applications (13 papers), Laser Design and Applications (11 papers) and Atomic and Molecular Physics (7 papers). H. Gerhardt is often cited by papers focused on Spectroscopy and Laser Applications (13 papers), Laser Design and Applications (11 papers) and Atomic and Molecular Physics (7 papers). H. Gerhardt collaborates with scholars based in Germany, United States and Hungary. H. Gerhardt's co-authors include S. Szatmári, P. Šimon, A. Timmermann, E. Matthias, H. Welling, Robert Wenz, Theodor W. Hänsch, F. Schneider, L. A. Bloomfield and G. Litfin and has published in prestigious journals such as The Journal of Chemical Physics, Optics Letters and Applied Surface Science.

In The Last Decade

H. Gerhardt

32 papers receiving 486 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
H. Gerhardt Germany 15 357 141 112 78 59 32 513
E. J. Robinson United States 14 568 1.6× 91 0.6× 93 0.8× 29 0.4× 44 0.7× 45 643
John O. Stoner United States 13 314 0.9× 90 0.6× 131 1.2× 53 0.7× 101 1.7× 53 538
B. N. Perry United States 11 320 0.9× 179 1.3× 124 1.1× 103 1.3× 26 0.4× 15 448
M. R. Hermann United States 13 449 1.3× 116 0.8× 83 0.7× 94 1.2× 39 0.7× 32 537
Kenneth W. Billman United States 11 206 0.6× 172 1.2× 97 0.9× 34 0.4× 26 0.4× 46 366
M. Y. Shverdin United States 14 624 1.7× 197 1.4× 60 0.5× 204 2.6× 122 2.1× 31 785
E. D. Shaw United States 12 496 1.4× 196 1.4× 124 1.1× 82 1.1× 26 0.4× 28 633
Walter C. Henneberger United States 10 780 2.2× 105 0.7× 88 0.8× 153 2.0× 14 0.2× 27 803
G. Spiess France 14 437 1.2× 57 0.4× 139 1.2× 44 0.6× 46 0.8× 36 468
Willy Persson Sweden 16 807 2.3× 104 0.7× 313 2.8× 61 0.8× 126 2.1× 45 945

Countries citing papers authored by H. Gerhardt

Since Specialization
Citations

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

Fields of papers citing papers by H. Gerhardt

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

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

This figure shows the co-authorship network connecting the top 25 collaborators of H. Gerhardt. A scholar is included among the top collaborators of H. 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 H. Gerhardt. H. 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.
Vogel, M., et al.. (1990). Die Ablation des Trabekelwerks. Klinische Monatsblätter für Augenheilkunde. 197(9). 250–253. 5 indexed citations
2.
Bolle, Matthias, K. Luther, J. Troe, J. Ihlemann, & H. Gerhardt. (1990). Photochemically assisted laser ablation of doped polymethyl-methacrylate. Applied Surface Science. 46(1-4). 279–283. 31 indexed citations
3.
Szatmári, S., P. Šimon, & H. Gerhardt. (1990). Generation of 135 fs pulses of variable pulse front tilt by spatially-evolving chirped-pulse amplification at 248 nm. Optics Communications. 79(1-2). 64–70. 10 indexed citations
4.
Šimon, P., H. Gerhardt, & S. Szatmári. (1989). Simple method for temporal study of subpicosecond distributed feedback dye lasers. Optics Communications. 71(5). 305–310. 16 indexed citations
5.
Mann, K. & H. Gerhardt. (1989). Setup Of A Damage Testing Facility For Excimer Laser Radiation. Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE. 1023. 136–136. 2 indexed citations
6.
Šimon, P., S. Szatmári, & H. Gerhardt. (1989). Intensity-dependent loss properties of window materials at 248 nm. Optics Letters. 14(21). 1207–1207. 47 indexed citations
7.
Bloomfield, L. A., H. Gerhardt, & T. W. Hänsch. (1983). Specific mass shift in the1s2sS3and1s5pP3states of helium. Physical review. A, General physics. 27(4). 2261–2264. 8 indexed citations
8.
Bloomfield, L. A., H. Gerhardt, & Theodor W. Hänsch. (1983). Ultraviolet-infrared double-resonance laser spectroscopy ofnd(n=12−17) Rydberg states inHe3. Physical review. A, General physics. 27(2). 850–856. 8 indexed citations
9.
Gerhardt, H. & T. W. Hänsch. (1982). Color center laser and electron impact excitation: Doppler-free spectroscopy in excited helium states. Optics Communications. 41(1). 17–20. 8 indexed citations
10.
Bloomfield, L. A., H. Gerhardt, & Theodor W. Hänsch. (1982). Singlet-triplet mixing in the13dRydberg state ofHe3observed with stepwise laser excitation. Physical review. A, General physics. 26(6). 3716–3719. 6 indexed citations
11.
Bloomfield, L. A., H. Gerhardt, Theodor W. Hänsch, & Stephen C. Rand. (1982). Nonlinear UV-laser spectroscopy of the 2 3S−5 3P transition in 3He and 4He. Optics Communications. 42(4). 247–250. 14 indexed citations
12.
Bloomfield, L. A., B. Couillaud, P. Dabkiewicz, H. Gerhardt, & Theodor W. Hänsch. (1982). Hyperfine structure of the2S3−5P3transition inHe3by high-resolution uv-laser spectroscopy. Physical review. A, General physics. 26(1). 713–716. 10 indexed citations
13.
Gerhardt, H., et al.. (1980). Time averaging by means of a computer controlled dye-laser spectrometer. Applied Physics A. 22(4). 361–364. 12 indexed citations
14.
Lowe, R. S., et al.. (1979). Intermodulated fluorescence spectroscopy of BO2 using a stabilized dye laser. The Journal of Chemical Physics. 70(1). 42–49. 25 indexed citations
15.
Gerhardt, H., et al.. (1978). Intermodulated fluorescence spectroscopy of free radicals with a stabilized dye laser (A). Journal of the Optical Society of America A. 68. 626. 12 indexed citations
16.
Gerhardt, H., et al.. (1978). High resolution polarization spectroscopy of the 557 nm transition of Krl. Optics Communications. 26(1). 58–61. 9 indexed citations
17.
Gerhardt, H., E. Matthias, F. Schneider, & A. Timmermann. (1978). Isotope shifts and hyperfine structure of the 6s-7p transitions in the cesium isotopes 133, 135, and 137. The European Physical Journal A. 288(4). 327–333. 24 indexed citations
18.
Gerhardt, H., et al.. (1977). Isotope shift and HFS ofD 1 lines in Na-22 and 23 measured by saturation spectroscopy. The European Physical Journal A. 281(3). 199–204. 17 indexed citations
19.
Gerhardt, H., et al.. (1972). Measurements of the laser linewidth due to quantum phase and quantum amplitude noise above and below threshold. I. The European Physical Journal A. 253(2). 113–126. 28 indexed citations
20.
Gerhardt, H., et al.. (1972). Observation of quantum-phase and quantum-amplitude noise for a laser below and above threshold. Physics Letters A. 40(3). 191–193. 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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