Phase-matching effects in the generation of high-energy photons by mid-infrared few-cycle laser pulses (Articolo in rivista)

Type
Label
  • Phase-matching effects in the generation of high-energy photons by mid-infrared few-cycle laser pulses (Articolo in rivista) (literal)
Anno
  • 2011-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1088/1367-2630/13/7/073003 (literal)
Alternative label
  • C. Vozzi, M. Negro, F. Calegari, S. Stagira, K. Kovács, V. Tosa (2011)
    Phase-matching effects in the generation of high-energy photons by mid-infrared few-cycle laser pulses
    in New journal of physics
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • C. Vozzi, M. Negro, F. Calegari, S. Stagira, K. Kovács, V. Tosa (literal)
Pagina inizio
  • 073003 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 13 (literal)
Rivista
Note
  • Scopu (literal)
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • CNR-IFN, 20133 Milan, Italy Department of Physics, Politecnico di Milano, 20133 Milan, Italy National Institute for R and D on Isotopic and Molecular Technologies, 400293 Cluj-Napoca, Romania (literal)
Titolo
  • Phase-matching effects in the generation of high-energy photons by mid-infrared few-cycle laser pulses (literal)
Abstract
  • We report on our experimental and theoretical investigations on the generation of high-order harmonics driven by 1500 nm few-cycle laser pulses in xenon. In contrast to the common belief, we found experimental evidence suggesting that harmonic generation driven by mid-infrared laser pulses can be realized with high efficiency; in particular, an enhancement of very high harmonic orders can be achieved under suitable conditions of the laser-medium interaction. The experimental results were simulated by a 3D non-adiabatic model. The theoretical outcomes confirm the experimental findings and provide a physical explanation for the counter-intuitive results. In particular, a time-dependent phase-matching analysis threw light on the generation mechanisms at a timescale of half optical cycle of the fundamental pulse. (literal)
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