Joint manifestation of quasi-phase-matching and resonance enhancement of harmonics in laser-induced plasmas
R. A. GaneevNational Research UniversityVyacheslav V. KimUniversity of LatviaGanjaboy S. BoltaevNational Research UniversityI.B. SapaevNational Research UniversityS. Yu. StremoukhovMoscow Institute of Physics and Technology
ABI
Аннотация
We compare two processes (resonance enhancement and quasi-phase-matching) allowing the enhancement of the high-order harmonics of ultrashort pulses during propagation through different laser-induced plasmas (vanadium, antimony, indium, and manganese). We show how the tuning of maximally enhanced harmonics during quasi-phase-matching in multi-jet plasmas can enhance the resonantly-enhanced harmonics. Theoretical calculations support experimentally observed quasi-phase-matching of a group of harmonics and single harmonic enhancement.
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