Laser-induced modification of a structured continuum observed in ionization and harmonic generation
- 1 July 1994
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review A
- Vol. 50 (1) , 641-648
- https://doi.org/10.1103/physreva.50.641
Abstract
Experimental investigations of the laser-induced continuum structure in the vicinity of autoionizing states (AIS’s) of Ca are reported for both ionization and third-harmonic generation. The shape of the induced structures is shown to be strongly affected by the presence of the AIS’s, as well as exhibiting a detuning- and laser-intensity-dependent transition from a window resonance dip to a peak. The observed modification of the continuum is discussed in terms of interfering excitation channels.Keywords
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