6533b839fe1ef96bd12a5c0e
RESEARCH PRODUCT
Photodetachment ofH−in the presence of a low-frequency laser field
Riccardo BurlonSaverio BivonaClaudio Leonesubject
PhysicsPhotonField (physics)InfraredOrder (ring theory)Astrophysics::Cosmology and Extragalactic AstrophysicsPhotoionizationElectronLaserAtomic and Molecular Physics and OpticsPonderomotive energylaw.inventionIonCross section (geometry)Cross section (physics)lawPhysics::Atomic PhysicsPhysics::Chemical PhysicsConnection (algebraic framework)Atomic physicsLaser beamsdescription
The photodetachment of a model one-electron ion simulating ${\mathrm{H}}^{\mathrm{\ensuremath{-}}}$ in the presence of a low-frequency field is analyzed. Two different geometries are considered in order to get information on the effect of the ponderomotive energy shift \ensuremath{\Delta} on the photodetachment cross section. Our calculations suggest that a correspondence may be established between the ponderomotive shift and the photodetachment cross section, when the ejected electron may exchange only a few low-frequency photons. This is in qualitative agreement with recent experimental observations. When a large number of processes are open in which the detached electron may exchange low-frequency photons with comparable probability, it is impossible to make any connection between ponderomotive threshold shift and photodetachment cross section which, instead, may be described in terms of a field picture.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1993-03-01 | Physical Review A |