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We report an efficient, high-energy, diode-pumped Yb:CaF2 regenerative amplifier. Energies up to 1.02 mJ at 1045-nm and 5 kHz-repetition rate in 324 fs-long pulses have been obtained with a beam quality factor of M2 =1.1.
We present a compact and efficient single-mode diode-pumped, passively mode-locked Yb3+:CaGdAlO4 laser. Sub-100 fs pulses, tunable over 30 nm, with output power exceeding 50 mW at any operational wavelength were obtained.
Intensity dependent high harmonic generation was investigated when both short and long trajectories contribute to the emission. We have directly observed for the first time clear indication of quantum-path interference through harmonic spectrum modulations.
Summary form only given. Pulse compression through filamentation to the two-optical-cycle regime has been demonstrated, including its capability of maintaining the carrier-envelope-offset (CEO) phase. Simulations reproduce these results well but also indicate significant spatial structure in the output beam calling for spatio-temporal characterization of these pulses. We used 30-fs pulses centered...
We demonstrate new world-record pulse duration of only 4.9 fs with filamentation pulse compression, performed full spatio-temporal characterization and used an interferometric technique to experimentally determine the plasma density in the filament.
We have investigated intensity dependent high-harmonic generation, when short and long trajectories are both visible in the generated signal. We have measured a plateau-harmonic spectral broadening and yield modulations consistent with quantum-paths interferences calculations.
We have investigated intensity dependent high-harmonic generation, when short and long trajectories are both visible in the generated signal. We have measured a plateau-harmonic spectral broadening and yield modulations consistent with quantum-paths interferences calculations.
Intense 5.1-fs pulses were generated through filamentation in argon while maintaining the CEO phase. The benefits to CEO phase control of using the generated octave-spanning spectrum for single shot f-2f spectral interferometry are also presented.
A diode-pumped Nd:YVO 4 laser passively Q-switched and mode locked by V 3+ :YAG generates as much as 505-mW average power at 1342 nm (30% of the cw output) in trains of sub-nanosecond pulses with energy as high as 0.7 μJ and repetition rates in the range 10–50 kHz.
Abstract. CW diode-pumped laser operation of Nd3+ in Ca3Sc2Ge3O12 (CaSGG) single garnet crystal has been demonstrated for the first time. We measured an 18% slope efficiency and 2.7-nm tunability with two different laser cavities. A spectroscopic characterization of our sample has also been performed including the absorption cross section in the 800-nm region and the emission cross section and radiative...
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