Resonant enhancements of high-order harmonic generation
C. Figueira de Morisson FariaMax Planck Institut für Physik komplexer Systeme, Nöthnitzer Straße 38, D-01187 Dresden, GermanyR. KopoldMax Born Institut für nichtlineare Optik und Kurzzeitspektroskopie, Max Born Straße 2A, D-12489 Berlin, GermanyW. BeckerMax Born Institut für nichtlineare Optik und Kurzzeitspektroskopie, Max Born Straße 2A, D-12489 Berlin, GermanyJan M. RostMax Planck Institut für Physik komplexer Systeme, Nöthnitzer Straße 38, D-01187 Dresden, Germany
2002en
ABI
Аннотация
Solving the one-dimensional time-dependent Schr\"odinger equation for simple model potentials, we investigate resonance-enhanced high-order harmonic generation, with emphasis on the physical mechanism of the enhancement. By truncating a long-range potential, we investigate the significance of the long-range tail, the Rydberg series, and the existence of highly excited states for the enhancements in question. We conclude that the channel closings typical of a short-range or zero-range potential are capable of generating essentially the same effects.
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