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.
ASJC Scopus subject areas
- Physics and Astronomy(all)
Brown, A. C., Hutchinson, S., Lysaght, M. A., & van Der Hart, H. W. (2012). Interference between Competing Pathways in Atomic Harmonic Generation. Physical Review Letters, 108(6), . https://doi.org/10.1103/PhysRevLett.108.063006