Open AccessSingle-shot phase-matching free ultrashort pulse characterization based on transient absorption in solids
Author(s) -
Benoit Brizard,
Adrien Leblanc,
S. Petit,
Jean-Christophe Delagnes,
Éric Cormier,
Heide Ibrahim,
François Légaré,
Philippe Lassonde
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.409342
Subject(s) - optics , materials science , ultrashort pulse , dispersion (optics) , wavelength , pulse shaping , phase (matter) , pulse (music) , physics , laser , detector , quantum mechanics
The frequency-resolved optical switching (FROSt) method developed for ultrashort pulse characterization is implemented for single-shot measurements. In this basic demonstration, the delay axis of the spectrogram is spatially encoded by the pump beam having a small incident angle with the photoexcited material. We present the calibration procedure for spectrograms acquired in single-shot and the temporal characterization of 44 fs pulses with central wavelength at 800 nm both in scanning and single-shot FROSt configurations. The retrieved pulses are compared by means of the root-mean-square field error. Finally, the pulses are propagated through a known dispersive material to measure the added group-delay dispersion.