Extracavity compression technique for high-energy femtosecond pulses
作者： E. Mével , O. Tcherbakoff , F. Salin , E. Constant
关键词: Femtosecond pulse shaping 、 Ultrashort pulse 、 Doppler broadening 、 Femtosecond 、 Pulse compression 、 Optics 、 Self-phase modulation 、 Multiphoton intrapulse interference phase scan 、 Bandwidth-limited pulse 、 Materials science
摘要: We introduce a new extracavity pulse-compression technique suitable for generating high-energy femtosecond pulses. This is based on spectral broadening by self-phase modulation in bulk media followed far-field spatial filtering, which provides uniform over the profile combined with transmission of 50%. In principle, this allows compression pulses energy up to ∼100 mJ factor 3–5. proof-of-principle experiment, we compressed 42-fs, 480-μJ pulse 14-fs, 220-μJ pulse.
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