Coherence and resonance effects in high-order harmonic generation

Anne Lhuillier, Phillipe Balcou, L. A. Lompré

Research output: Contribution to journalArticlepeer-review


We present experimental measurements of harmonic generation in xenon using a 1064-nm 40-psec Nd-doped yttrium aluminum garnet laser. The harmonic yield is studied as a function of the position of the laser focus in the atomic beam. It shows regular oscillations whose period decreases with increasing harmonic order and which can be interpreted as phase-matching effects due to the tight focusing geometry. Moreover, the amplitudes of the oscillations vary rapidly with the laser intensity, a signature of resonance effects in the harmonic generation process.

Original languageEnglish
Pages (from-to)166-169
Number of pages4
JournalPhysical Review Letters
Issue number2
Publication statusPublished - 1992 Jan 13
Externally publishedYes

Subject classification (UKÄ)

  • Atom and Molecular Physics and Optics


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