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We apply time-dependent R-matrix theory to investigate harmonic generation from ground-state Ar+ with M = 0 at a wavelength of 390 nm. Contributions associated with the different 3s(2)3p(4) ionization thresholds are assessed, including the interference between these. The dominant contribution originates from the second ionization threshold, 3s(2)3p(4 1)D. Changes to the harmonic yields arising from the higher 3s3p(5) thresholds are also assessed. We further confirm that Ar+ has a higher harmonic yield than He for the same laser pulse, despite having a higher ionization threshold.
|Number of pages||5|
|Journal||Physical Review A (Atomic, Molecular, and Optical Physics)|
|Publication status||Published - 26 Dec 2012|
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics