title: Threshold-related enhancement of the high-energy plateau in above-threshold detachment.
abstract: We present nonperturbative theoretical results showing a resonant-like enhancement of above-threshold detachment spectra in the region of the high-energy plateau as the laser intensity sweeps across channel thresholds. This enhancement has a pure quantum origin stemming from well-known threshold phenomena in multichannel problems whose features are clearly demonstrated in our numerical results. Similar well-known anomalies at neutral atom thresholds are expected to explain experimentally observed resonant-like enhancements of above-threshold ionization spectra.
authors: Department of Physics and Astronomy, The University of Nebraska, Lincoln, Nebraska 68588-0111, USA.
authors: Bogdan
authors: B
authors: Borca
authors: M V
authors: MV
authors: Frolov
authors: N L
authors: NL
authors: Manakov
authors: Anthony F
authors: AF
authors: Starace