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Single-shot phase-matching free ultrashort pulse characterization based on transient absorption in solids

Abstract : 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.
Keywords : laser nonlinear optics
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https://hal.archives-ouvertes.fr/hal-03021345
Contributor : Adrien Leblanc <>
Submitted on : Tuesday, November 24, 2020 - 11:51:59 AM
Last modification on : Wednesday, November 25, 2020 - 11:43:35 AM
Long-term archiving on: : Thursday, February 25, 2021 - 7:35:18 PM

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Benoit Brizard, Adrien Leblanc, Stephane Petit, Jean-Christop Delagnes, Éric Cormier, et al.. Single-shot phase-matching free ultrashort pulse characterization based on transient absorption in solids. Optics Express, Optical Society of America - OSA Publishing, 2020, 28, pp.35807. ⟨10.1364/OE.409342⟩. ⟨hal-03021345⟩

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