Open AccessCharacterizing the carrier-envelope phase stability of mid-infrared laser pulses by high harmonic generation in solids
Author(s) -
Adrien Leblanc,
Philippe Lassonde,
Gilles Dalla-Barba,
Éric Cormier,
Heide Ibrahim,
François Légaré
Publication year - 2020
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.388465
Subject(s) - optics , laser , high harmonic generation , carrier envelope phase , waveform , infrared , phase (matter) , harmonic , envelope (radar) , materials science , wavelength , physics , telecommunications , radar , quantum mechanics , voltage , computer science
We present a novel approach for measuring the carrier-envelope phase (CEP) stability of a laser source by employing the process of high harmonic generation (HHG) in solids. HHG in solids driven by few-cycle pulses is very sensitive to the waveform of the driving pulse, therefore enabling to track the shot-to-shot CEP fluctuations of a laser source. This strategy is particularly practical for pulses at long central wavelength up to the mid-infrared spectral range where usual techniques used in the visible or near-infrared regions are challenging to transpose. We experimentally demonstrate this novel tool by measuring the CEP fluctuations of a mid-infrared laser source centered at 9.5~μm.