Interference between Competing Pathways in Atomic Harmonic Generation

A. C. Brown, S. Hutchinson, M. A. Lysaght, H. W. van Der Hart

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20 Citations (Scopus)
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We investigate the influence of the autoionizing 3s3p6nl resonances on the fifth harmonic generated by 200–240 nm laser fields interacting with Ar. To determine the influence of a multielectron response we develop the capability within time-dependent R-matrix theory to determine the harmonic spectra generated. The fifth harmonic is affected by interference between the response of a 3s electron and the response of a 3p electron, as demonstrated by the asymmetric profiles in the harmonic yields as functions of wavelength.
Original languageEnglish
Article number063006
Number of pages5
JournalPhysical Review Letters
Issue number6
Early online date09 Feb 2012
Publication statusPublished - 10 Feb 2012

ASJC Scopus subject areas

  • Physics and Astronomy(all)


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