Theodor W. Hänsch | Researchain

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Featured researches published by Theodor W. Hänsch.

Advances in Imaging (2009), paper FMB2 | 2009

Frequency Comb Fourier Transform Spectroscopy with kHz Optical Resolution

Patrick Jacquet; Julien Mandon; Birgitta Bernhardt; Ronald Holzwarth; Guy Guelachvili; Theodor W. Hänsch; Nathalie Picqué

Michelson-less Fourier spectra, comprising 500,000,000 spectral elements spanning 1 nm with 2.3 kHz (7.7 10^-8 cm^-1) resolution, are recorded within 6s. Moving mirror of equivalent interferometers should cover 130 km at 78,000 km/hour velocity.

Lasers, Sources and Related Photonic Devices (2010), paper AWC6 | 2010

Femtosecond High Repetition Rate External Cavity beyond the Average Power Limit for Linear Enhancement

Ioachim Pupeza; Tino Eidam; Oleg Pronin; Jens Rauschenberger; Birgitta Bernhardt; A. Ozawa; Thomas Udem; Ronald Holzwarth; Jens Limpert; Alexander Apolonski; Theodor W. Hänsch; Andreas Tünnermann; F. Krausz

We report on the cavity enhancement of a 78MHz, 200fs ytterbium-fiber laser system. Linear enhancement up to a record intra-cavity power of 18kW has been observed. In a non-linear enhancement regime 40kW have been reached.

Archive | 2000

Generation of stabilized, ultra-short light pulses and the use thereof for synthesizing optical frequencies

Ronald Holzwarth; J. Reichert; Thomas Udem; Theodor W. Hänsch

Nature Physics | 2007

Test of relativistic time dilation with fast optical atomic clocks at different velocities

S. Reinhardt; Guido Saathoff; Henrik Buhr; Lars A. Carlson; A. Wolf; D. Schwalm; S. Karpuk; C. Novotny; G. Huber; Marcus Zimmermann; Ronald Holzwarth; Thomas Udem; Theodor W. Hänsch; G. Gwinner

Archive | 2005