Abstract
Precise temporal pulse shaping of optical pulses has become increasingly important in laser—matter interaction and applications. This is true at the femtosecond time scale for coherent control experiments as well as in the nanosecond time scale with inertial confinement fusion applications. In the latter case few nanosecond pulses must be shaped with a plateau and subsequent structures having tens of picoseconds rises. But it is also important that the pulse spectrum stays bandwidth limited in order to limit dispersion and optimize the amplification and the frequency conversion. In this work we have reached this goal by applying our concept1 of adapted phase-matching, which previously allowed us to efficiently generate ultrashort third harmonic2 or narrow bandwidth second harmonic pulses3 starting from femtosecond pulses.
© 2000 Optical Society of America
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