Th. Klaus

427 total citations
15 papers, 336 citations indexed

About

Th. Klaus is a scholar working on Spectroscopy, Atmospheric Science and Atomic and Molecular Physics, and Optics. According to data from OpenAlex, Th. Klaus has authored 15 papers receiving a total of 336 indexed citations (citations by other indexed papers that have themselves been cited), including 12 papers in Spectroscopy, 8 papers in Atmospheric Science and 7 papers in Atomic and Molecular Physics, and Optics. Recurrent topics in Th. Klaus's work include Molecular Spectroscopy and Structure (10 papers), Spectroscopy and Laser Applications (10 papers) and Atmospheric Ozone and Climate (8 papers). Th. Klaus is often cited by papers focused on Molecular Spectroscopy and Structure (10 papers), Spectroscopy and Laser Applications (10 papers) and Atmospheric Ozone and Climate (8 papers). Th. Klaus collaborates with scholars based in Germany, United States and Japan. Th. Klaus's co-authors include С. П. Белов, G. Winnewisser, R. Schieder, G. Winnewisser, Frank Lewen, Andreas Speicher, Eric Herbst, Theophil Eicher, Yasuhiro Hirahara and Štěpán Urban and has published in prestigious journals such as The Astrophysical Journal, Journal of Molecular Spectroscopy and Zeitschrift für Naturforschung A.

In The Last Decade

Th. Klaus

15 papers receiving 316 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Th. Klaus Germany 10 258 175 161 60 34 15 336
David A. Fairley New Zealand 11 250 1.0× 108 0.6× 232 1.4× 147 2.5× 22 0.6× 18 407
S. J. Daunt United States 13 298 1.2× 216 1.2× 159 1.0× 44 0.7× 31 0.9× 36 418
C. Rebrion France 11 232 0.9× 104 0.6× 311 1.9× 100 1.7× 23 0.7× 13 384
Kenzo Hiraoka Japan 10 202 0.8× 70 0.4× 177 1.1× 93 1.6× 28 0.8× 17 352
Roland Tóbiás Hungary 12 344 1.3× 269 1.5× 179 1.1× 29 0.5× 18 0.5× 27 426
Edouard Hugo Germany 8 303 1.2× 126 0.7× 280 1.7× 209 3.5× 21 0.6× 12 463
M. Durup-Ferguson France 10 373 1.4× 205 1.2× 332 2.1× 32 0.5× 25 0.7× 18 527
Kuniaki Nakagawa Japan 12 298 1.2× 105 0.6× 233 1.4× 25 0.4× 36 1.1× 23 342
Nadine Wehres United States 12 204 0.8× 103 0.6× 179 1.1× 139 2.3× 9 0.3× 27 321
M. Koivusaari Finland 14 536 2.1× 372 2.1× 313 1.9× 34 0.6× 19 0.6× 47 582

Countries citing papers authored by Th. Klaus

Since Specialization
Citations

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

Fields of papers citing papers by Th. Klaus

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Th. Klaus

This figure shows the co-authorship network connecting the top 25 collaborators of Th. Klaus. A scholar is included among the top collaborators of Th. Klaus 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 Th. Klaus. Th. Klaus is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

15 of 15 papers shown
1.
Müller, H. S. P., Th. Klaus, & G. Winnewisser. (2000). Submillimeter-wave spectrum of the ethynyl radical, CCH, up to 1 THz. A&A. 357. 1 indexed citations
2.
Klaus, Th., С. П. Белов, & G. Winnewisser. (1998). Precise Measurement of the Pure Rotational Submillimeter-Wave Spectrum of HCl and DCl in Theirv= 0, 1 States. Journal of Molecular Spectroscopy. 187(1). 109–117. 48 indexed citations
4.
Klaus, Th., Shuro Takano, & G. Winnewisser. (1997). LABORATORY MEASUREMENT OF THE N = 1 0 ROTATIONAL TRANSITION OF NH AT 1 THZ. 322(2). 3 indexed citations
5.
Klaus, Th., С. П. Белов, & G. Winnewisser. (1997). Submillimeter-Wave Rotational Spectra of SO Isotopomers in the Electronic Statesa1Δ andb1Σ+. Journal of Molecular Spectroscopy. 186(2). 416–421. 6 indexed citations
6.
Winnewisser, G., С. П. Белов, Th. Klaus, & R. Schieder. (1997). Sub-Doppler Measurements on the Rotational Transitions of Carbon Monoxide. Journal of Molecular Spectroscopy. 184(2). 468–472. 88 indexed citations
7.
Klaus, Th., С. П. Белов, G. Winnewisser, et al.. (1996). Pure Rotational Spectra of SO: Rare Isotopomers in the 80-GHz to 1.1-THz Region. Journal of Molecular Spectroscopy. 180(2). 197–206. 35 indexed citations
8.
Klaus, Th., et al.. (1996). The Rotational Spectrum of SH and SD. The Astrophysical Journal. 473(2). 1118–1124. 32 indexed citations
9.
Winnewisser, G., С. П. Белов, Th. Klaus, & Štěpán Urban. (1996). Ro-inversional Spectrum of Ammonia. Zeitschrift für Naturforschung A. 51(3). 200–206. 16 indexed citations
10.
Белов, С. П., Frank Lewen, Th. Klaus, & G. Winnewisser. (1995). TheQ4Branch of HSSH at 1.25 THz. Journal of Molecular Spectroscopy. 174(2). 606–612. 25 indexed citations
11.
Lewen, Frank, С. П. Белов, Frank Maiwald, Th. Klaus, & G. Winnewisser. (1995). A Quasi-Optical Multiplier for Terahertz Spectroscopy. Zeitschrift für Naturforschung A. 50(12). 1182–1186. 15 indexed citations
12.
Белов, С. П., Th. Klaus, Grant M. Plummer, R. Schieder, & G. Winnewisser. (1995). Sub-Doppler Spectroscopy of Ammonia Near 570 GHz. Zeitschrift für Naturforschung A. 50(12). 1187–1190. 9 indexed citations
13.
Tanimoto, M., et al.. (1995). Millimeter- and Submillimeter-Wave Rotational Spectra of Rare Hydrogen Sulfide Isotopomers. Journal of Molecular Spectroscopy. 171(2). 481–493. 17 indexed citations
14.
Klaus, Th., et al.. (1994). Rotational Spectrum of SO in the Terahertz Region. Journal of Molecular Spectroscopy. 168(2). 235–247. 14 indexed citations
15.
Белов, С. П., Th. Klaus, R. Schieder, et al.. (1994). Precision Measurement of the rQ2 Branch at 700 GHz and the rQ3 Branch at 980 GHz of Hssh. Journal of Molecular Spectroscopy. 166(2). 489–494. 7 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

Rankless by CCL
2026