Optical frequency metrology T Udem, R Holzwarth, TW Hänsch
Nature 416 (6877), 233-237, 2002
3953 2002 Attosecond control of electronic processes by intense light fields A Baltuška, T Udem, M Uiberacker, M Hentschel, E Goulielmakis, C Gohle, ...
Nature 421 (6923), 611-615, 2003
2202 2003 Optical frequency synthesizer for precision spectroscopy R Holzwarth, T Udem, TW Hänsch, JC Knight, WJ Wadsworth, ...
Physical review letters 85 (11), 2264, 2000
1746 2000 Direct link between microwave and optical frequencies with a 300 THz femtosecond laser comb SA Diddams, DJ Jones, J Ye, ST Cundiff, JL Hall, JK Ranka, RS Windeler, ...
Physical review letters 84 (22), 5102, 2000
1689 2000 Absolute Optical Frequency Measurement of the Cesium Line with a Mode-Locked Laser T Udem, J Reichert, R Holzwarth, TW Hänsch
Physical review letters 82 (18), 3568, 1999
1178 1999 An optical clock based on a single trapped 199Hg+ ion SA Diddams, T Udem, JC Bergquist, EA Curtis, RE Drullinger, L Hollberg, ...
Science 293 (5531), 825-828, 2001
1086 2001 Measurement of the Hydrogen - Transition Frequency by Phase Coherent Comparison with a Microwave Cesium Fountain Clock M Niering, R Holzwarth, J Reichert, P Pokasov, T Udem, M Weitz, ...
Physical Review Letters 84 (24), 5496, 2000
897 2000 Laser frequency combs for astronomical observations T Steinmetz, T Wilken, C Araujo-Hauck, R Holzwarth, TW Hansch, ...
Science 321 (5894), 1335-1337, 2008
836 2008 A frequency comb in the extreme ultraviolet C Gohle, T Udem, M Herrmann, J Rauschenberger, R Holzwarth, ...
Nature 436 (7048), 234-237, 2005
760 2005 Controlling the phase evolution of few-cycle light pulses A Apolonski, A Poppe, G Tempea, C Spielmann, T Udem, R Holzwarth, ...
Physical Review Letters 85 (4), 740, 2000
695 2000 Measuring the frequency of light with mode-locked lasers J Reichert, R Holzwarth, T Udem, TW Hänsch
Optics communications 172 (1-6), 59-68, 1999
689 1999 Accurate measurement of large optical frequency differences with a mode-locked laser T Udem, J Reichert, R Holzwarth, TW Hänsch
Optics letters 24 (13), 881-883, 1999
671 1999 Cavity-enhanced dual-comb spectroscopy B Bernhardt, A Ozawa, P Jacquet, M Jacquey, Y Kobayashi, T Udem, ...
Nature photonics 4 (1), 55-57, 2010
664 2010 New limits on the drift of fundamental constants from laboratory measurements M Fischer, N Kolachevsky, M Zimmermann, R Holzwarth, T Udem, ...
Physical Review Letters 92 (23), 230802, 2004
660 2004 A 920-kilometer optical fiber link for frequency metrology at the 19th decimal place K Predehl, G Grosche, SMF Raupach, S Droste, O Terra, J Alnis, T Legero, ...
Science 336 (6080), 441-444, 2012
640 2012 Phase-Coherent Measurement of the Hydrogen Transition Frequency with an Optical Frequency Interval Divider Chain T Udem, A Huber, B Gross, J Reichert, M Prevedelli, M Weitz, TW Hänsch
Physical review letters 79 (14), 2646, 1997
639 1997 Improved Measurement of the Hydrogen Transition Frequency CG Parthey, A Matveev, J Alnis, B Bernhardt, A Beyer, R Holzwarth, ...
Physical review letters 107 (20), 203001, 2011
584 2011 Optical frequency combs: Coherently uniting the electromagnetic spectrum SA Diddams, K Vahala, T Udem
Science 369 (6501), eaay3676, 2020
523 2020 The Rydberg constant and proton size from atomic hydrogen A Beyer, L Maisenbacher, A Matveev, R Pohl, K Khabarova, A Grinin, ...
Science 358 (6359), 79-85, 2017
486 2017 High-precision wavelength calibration of astronomical spectrographs with laser frequency combs MT Murphy, T Udem, R Holzwarth, A Sizmann, L Pasquini, ...
Monthly Notices of the Royal Astronomical Society 380 (2), 839-847, 2007
472 2007