Carrier-envelope shearing and isolated attosecond pulse generation

A. Lotti, D. Faccio, A. Couairon, M. B. Gaarde, P. Di Trapani

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4 Citations (Scopus)

Abstract

Conical Bessel-like pulses allow control of the propagation velocity of the main intensity peak. With few-cycle pulses, this leads to a controllable shearing effect with respect to the carrier-phase oscillation and a consequent variation of the instantaneous intensity during propagation. Numerical simulations highlight how this intensity modulation directly controls the atomic dipole phase in the process of high-order harmonic generation and isolates either the long or the short electron-trajectory contributions. We identify a propagation regime in which the harmonic field takes the form of an isolated pulse of 300 as duration.

Original languageEnglish
Article number053804
Pages (from-to)-
Number of pages6
JournalPhysical Review A
Volume83
Issue number5
DOIs
Publication statusPublished - 3 May 2011

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