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In this work we investigate the roto-vibrational excitation of a molecular medium induced by filamentation of an ultrashort laser pulse. The experiment has been performed using an amplified Ti:sapphire laser system, which generates 60-fs pulses at 800 nm with a repetition rate of 10 Hz. The laser pulses were compressed down to 10 fs by filamentation in an Ar-filled gas cell, followed by reflections...
We generated high-order harmonics with self-phase-stabilized near-IR pulses produced by a parametric source. We observed a significant cutoff extension whit respect to 800-nm driving pulses at comparable peak intensity. This result represents a step forward the generation of single attosecond pulses with photon energies exceeding 100 eV.
Summary form only given. In this paper, a scheme for the generation of high-energy, few-optical-cycle, carrier-envelope-phase (CEP) stabilized pulses in the IR around 1.5 mum is realised. The system is driven by a CPA Ti:sapphire laser (50 fs, 120 mJ, 800 nm, 10 Hz). A 0.6-mJ pulse is spectrally broadened by filamentation in a gas cell filled with krypton and compressed by chirped mirrors down to...
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