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We experimentally demonstrate that high energy femtosecond laser pulses can be compressed using nonlinear propagation in gas-filled planar hollow waveguides. A stability analysis provides guidelines for up-scaling the compressible pulse energy without spatial beam-breakup.
We experimentally demonstrate the revival of short lived femtosecond laser induced plasma channels in air by a nanosecond laser pulse up to several milliseconds after plasma recombination. Such revived plasma channel is generated over 50 cm using a Bessel-like nanosecond laser beam.
We experimentally demonstrate the revival of short lived femtosecond laser induced plasma channels in air by a nanosecond laser pulse up to several milliseconds after plasma recombination. Such revived plasma channel is generated over 50 cm using a Bessel-like nanosecond laser beam.
We present two techniques for measuring the complete spatio-temporal intensity and phase, E(x,y,z, t), of an ultrashort pulse, one in and near a focus and the other for a single pulse.
We demonstrate an ultrasimple, extremely broadband, alignment-free, and single-shot Transient-Grating Frequency-Resolved-Optical-Gating device using a mask to separate the input beam into three beams and a Fresnel biprism to cross and delay them.
Pulse-front tilt in ultrashort laser pulses is usually considered equivalent to angular dispersion. We prove, however, that the combination of spatial and temporal chirp also produces pulse-front tilt. We verify this experimentally using a GRENOUILLE.
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