Media type: Text; E-Article Title: Extreme-ultraviolet frequency combs from high-order harmonic generation with few-cycle pulse trains Contributor: Tudorovskaya, Maria [Author]; Lein, Manfred [Author] Published: College Park, MD : American Physical Society, 2017 Published in: Physical Review A 95 (2017), Nr. 4 Issue: published Version Language: English DOI: https://doi.org/10.15488/1958; https://doi.org/10.1103/PhysRevA.95.043418 Keywords: GW150914 ; Extreme Ultraviolet ; Offset frequencies ; High-precision spectroscopy ; Optical frequency combs ; Harmonic generation ; Gravitationswelle ; Theoretical study ; Gravitational Waves ; Few-cycle pulse ; High order harmonic generation ; High repetition ; Laser pulses ; Harmonic analysis ; Black Holes Origination: Footnote: Diese Datenquelle enthält auch Bestandsnachweise, die nicht zu einem Volltext führen. Description: The spectrum of a high-repetition train of laser pulses consists of many equally spaced lines, forming an optical frequency comb which is useful for high-precision spectroscopy. By exposing atoms to a train of strong pulses, frequency combs reaching into the extreme ultraviolet may be produced via high-order harmonic generation. Here, we report a theoretical study of extreme-ultraviolet frequency-comb generation by trains of few-cycle pulses. We analyze the nontrivial comb structure arising from overlapping harmonic orders. The spacings of the comb lines and their dependence on the offset frequency of the incident pulse train are discussed. © 2017 American Physical Society. Access State: Open Access