6533b85bfe1ef96bd12bab2a

RESEARCH PRODUCT

In-situ diagnostic of ultrashort probes based on Kerr-index transient Bragg grating

Cyril BilletR. GiustC. XieFrançois CourvoisierB. MorelRemi Meyer

subject

Physics[PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics]business.industryPhysics::Optics02 engineering and technologyDielectric021001 nanoscience & nanotechnology01 natural sciencesPrism compressorAngular dispersionPulse (physics)010309 opticsOpticsFiber Bragg grating0103 physical sciencesTransient (oscillation)High numerical aperture0210 nano-technologybusinessUltrashort pulseComputingMilieux_MISCELLANEOUS

description

Pump-probe experiments are essential tools to investigate ultrafast dynamics of laser-matter interaction. We are particularly interested in the dynamics of transparent dielectrics under high numerical aperture focusing. Two main challenges arise for the weak probe pulse. First, we need a precise knowledge of the probe delay with respect to the pump pulse. Second, dispersion compensation of the ultrashort probe pulse generally requires a prism compressor, which can generate angular dispersion, and therefore incorrect interpretation of the pump­probe measurements.

https://hal.archives-ouvertes.fr/hal-02366752