Th. Udem

14.1k citations

92 papers · 9.5k indexed · 9 hit papers · h-index 36

Atomic and Molecular Physics, and Optics top 0.1%
- Advanced Fiber Laser Technologies 68
- Advanced Frequency and Time Standards 31
- Laser-Matter Interactions and Applications 30
- Cold Atom Physics and Bose-Einstein Condensates 11
- Atomic and Subatomic Physics Research 10
Spectroscopy top 0.2%
- Spectroscopy and Laser Applications 23
Electrical and Electronic Engineering top 0.5%
- Solid State Laser Technologies 12
- Photonic Crystal and Fiber Optics 10
Statistics, Probability and Uncertainty top 0.5%
Nuclear and High Energy Physics top 2%

Co-authors: Theodor W. Hänsch Ronald Holzwarth Johannes Reichert P. St. J. Russell J. C. Knight W. J. Wadsworth Ferenc Krausz Christoph Gohle
Cited by: Atomic and Molecular Physics, and Optics Spectroscopy Electrical and Electronic Engineering
Journals: Physical Review Letters (12 papers)Physical Review A (9 papers)Optics Express (5 papers)
Partner nations: Germany United States Russia

In The Last Decade

Th. Udem

88 papers receiving 8.9k citations

Hit Papers

9 papers align trajectories log scale

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.

2012 Science
2003 Nature
2002 Nature
2001 Science
2000 Physical Review Letters
1999 Physical Review Letters
1999 Optics Letters
1999 Optics Communications
1997 Physical Review Letters

Peers

Countries citing papers authored by Th. Udem

Since Specialization

Citations

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

Fields of papers citing papers by Th. Udem

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network

The 25 scholars most cited alongside Th. Udem, linked wherever they have co-authored with each other. Click a name or a connecting line to browse the papers they share.

Border = papers with Th. Udem Line = papers co-authored together Th. Udem links everyone, so they are left out of the graph.

All Works

Sort: Min cites: Since: Top N: Style:

20 of 20 papers shown

#	Work
1	The solar gravitational redshift from HARPS-LFC Moon spectra Astronomy and Astrophysics ·J. I. Gónzalez Hernández,R. Rébolo,L. Pasquini,G. Lo Curto,P. Molaro,E. Caffau,H.‐G. Ludwig,M. Steffen,M. Esposito,A. Suárez Mascareño,B. Toledo-Padrón,Rafael A. Probst,Theodor W. Hänsch,Ronald Holzwarth,A. Manescau,T. Steinmetz,Th. Udem,T. Wilken	2020	20
2	Measuring and characterizing the line profile of HARPS with a laser frequency comb Astronomy and Astrophysics ·Fei Zhao,G. Lo Curto,L. Pasquini,J. I. Gónzalez Hernández,J. R. De Medeiros,B. L. Canto Martins,I. C. Leão,R. Rébolo,A. Suárez Mascareño,M. Esposito,A. Manescau,T. Steinmetz,Th. Udem,Rafael A. Probst,Ronald Holzwarth,Gang Zhao	2020	14
3	High-power multi-megahertz source of waveform-stabilized few-cycle light Nature Communications ·Oleg Pronin,Marcus Seidel,Fabian Lücking,Jonathan Brons,Elena Fedulova,Michael K. Trubetskov,Vladimir Pervak,A. Apolonski,Th. Udem,Ferenc Krausz	2015	57
4	Optical-Frequency Transfer over a Single-Span 1840 km Fiber Link Physical Review Letters ·Stefan Droste,Filip Ozimek,Th. Udem,Katharina Predehl,Theodor W. Hänsch,H. Schnatz,Gesine Grosche,Ronald Holzwarth	2013	200
5	Nonlinear amplification of side-modes in frequency combs Optics Express ·Rafael A. Probst,T. Steinmetz,T. Wilken,H. Hundertmark,Sebastian Stark,G. K. L. Wong,P. St. J. Russell,Theodor W. Hänsch,Ronald Holzwarth,Th. Udem	2013	20
6	Astronomical Spectrograph Calibration at the Exo-Earth Detection Limit The Messenger ·G. Lo Curto,L. Pasquini,A. Manescau,Ronald Holzwarth,T. Steinmetz,T. Wilken,Rafael A. Probst,Th. Udem,Calhoun, James, 1742 or 1743-1816,J. I. Gónzalez Hernández,M. Esposito,R. Rébolo,Anson Adams,J. R. De Medeiros	2012	6
7	Injection Locking of a Trapped-Ion Phonon Laser Physical Review Letters ·S. Knünz,M. G. Herrmann,Valentin Batteiger,G. Saathoff,Theodor W. Hänsch,Kerry J. Vahala,Th. Udem	2010	63
8	Two-photon direct frequency comb spectroscopy with chirped pulses Physical Review A ·S. Reinhardt,خالد بن عيسى,Theodor W. Hänsch,Th. Udem	2010	15
9	Frequency Metrology on Single Trapped Ions in the Weak Binding Limit: The3s1/2−3p3/2Transition inMg+24 Physical Review Letters ·M. G. Herrmann,Valentin Batteiger,S. Knünz,G. Saathoff,Th. Udem,Theodor W. Hänsch	2009	44
10	A deep-UV optical frequency comb at 205 nm Optics Express ·خالد بن عيسى,Scott A. Diddams,Peter Fendel,S. Reinhardt,Theodor W. Hänsch,Th. Udem	2009	36
11	High-precision wavelength calibration with laser frequency combs arXiv (Cornell University) ·M. T. Murphy,Th. Udem,Ronald Holzwarth,A. Sizmann,L. Pasquini,Constanza Araujo-Hauck,H. Dekker,S. D’Odorico,Marc Fischer,Theodor W. Hänsch,A. Manescau	2007	8
12	Two-photon frequency comb spectroscopy of the 6s-8s transition in cesium Optics Letters ·Peter Fendel,Scott Bergeson,Th. Udem,Theodor W. Hänsch	2007	73
13	Observation of Light-Phase-Sensitive Photoemission from a Metal Physical Review Letters ·A. Apolonski,Péter Dombi,G. G. Paulus,Masayuki Kakehata,Ronald Holzwarth,Th. Udem,C. Lemell,Kenji Torizuka,Joachim Burgdörfer,Theodor W. Hänsch,F. Krausz	2004	145
14	Attosecond control of electronic processes by intense light fieldsbreakdown → Nature ·Andrius Baltuška,Th. Udem,M. Uiberacker,Michael Hentschel,E. Goulielmakis,Christoph Gohle,Ronald Holzwarth,Vladislav S. Yakovlev,Armin Scrinzi,Theodor W. Hänsch,Ferenc Krausz	2003	1145
15	Optical frequency metrologybreakdown → Nature ·Th. Udem,Ronald Holzwarth,Theodor W. Hänsch	2002	2083
16	Absolute Frequency Measurements of theHg+and Ca Optical Clock Transitions with a Femtosecond Laser Physical Review Letters ·Th. Udem,Scott A. Diddams,Kurt Vogel,C. W. Oates,E. A. Curtis,今井晶子,Wayne M. Itano,R.E. Drullinger,Jonas Bergquist,L. Hollberg	2001	184
17	White-light frequency comb generation with a diode-pumped Cr:LiSAF laser Optics Letters ·Ronald Holzwarth,M. Zimmermann,Th. Udem,Theodor W. Hänsch,P. Rußbüldt,K. Gäbel,Reinhart Poprawe,J. C. Knight,W. J. Wadsworth,P. St. J. Russell	2001	62
18	Absolute frequency measurement of iodine lines with a femtosecond optical synthesizer Applied Physics B ·Ronald Holzwarth,A. Nevsky,M. Zimmermann,Th. Udem,Theodor W. Hänsch,J. von Zanthier,H. Walther,J. C. Knight,W. J. Wadsworth,P. St. J. Russell,M. N. Skvortsov,S.N. Bagayev	2001	57
19	Precision spectroscopy with femtosecond light pulses Quantum Electronics and Laser Science Conference ·Julia W. Aucoin,Ronald Holzwarth,Johannes Reichert,Th. Udem	2000	2
20	Accurate measurement of large optical frequency differences with a mode-locked laserbreakdown → Optics Letters ·Th. Udem,Johannes Reichert,Ronald Holzwarth,Theodor W. Hänsch	1999	250

About Th. Udem

Th. Udem is a scholar working on Atomic and Molecular Physics, and Optics, Spectroscopy and Statistics, Probability and Uncertainty, having authored 92 papers that have together received 9.5k indexed citations. Recurring topics across this work include Advanced Fiber Laser Technologies (68 papers), Advanced Frequency and Time Standards (31 papers), Laser-Matter Interactions and Applications (30 papers), Spectroscopy and Laser Applications (23 papers), Solid State Laser Technologies (12 papers), Cold Atom Physics and Bose-Einstein Condensates (11 papers), Atomic and Subatomic Physics Research (10 papers) and Photonic Crystal and Fiber Optics (10 papers). The work is most often cited by research in Atomic and Molecular Physics, and Optics (9.0k citations), Spectroscopy (1.9k citations) and Electrical and Electronic Engineering (4.4k citations). Th. Udem has collaborated with scholars based in Germany, United States and Russia. Frequent co-authors include Theodor W. Hänsch, Ronald Holzwarth, Johannes Reichert, P. St. J. Russell, J. C. Knight, W. J. Wadsworth, Ferenc Krausz, Christoph Gohle, Vladislav S. Yakovlev and Andrius Baltuška. Their work appears in journals such as Physical Review Letters, Physical Review A, Optics Express, Applied Physics B and Optics Letters.

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