Strong laser field effects in multiphoton stark detachment

V. N. Ostrovsky, D. A. Telnov

Research output

5 Citations (Scopus)

Abstract

A Green function approach is employed to obtain general expressions for electron flux distributions and partial widths in multiphoton detachment from a negative atomic ion placed into a uniform static electric field. The electric vector for the linearly polarized laser field has arbitrary direction with respect to the static field axis. The case of a weak static field is analysed in detail for arbitrary strength of the laser field. The separation of the uniform field and laser field effects allows simple and appealing expressions to be obtained for photodetachment partial widths via static-field-free amplitudes in the case of an arbitrary number of absorbed photons and quantum numbers of the initial state. Some implications of the present results for the interpretation of recent experiments on H- Stark photodetachment are discussed.

Original languageEnglish
Pages (from-to)L477-L483
JournalJournal of Physics B: Atomic, Molecular and Optical Physics
Volume24
Issue number19
DOIs
Publication statusPublished - 14 Oct 1991

Fingerprint

detachment
photodetachment
lasers
electron flux
quantum numbers
Green's functions
electric fields
photons
ions

Scopus subject areas

  • Condensed Matter Physics
  • Atomic and Molecular Physics, and Optics

Cite this

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T1 - Strong laser field effects in multiphoton stark detachment

AU - Ostrovsky, V. N.

AU - Telnov, D. A.

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N2 - A Green function approach is employed to obtain general expressions for electron flux distributions and partial widths in multiphoton detachment from a negative atomic ion placed into a uniform static electric field. The electric vector for the linearly polarized laser field has arbitrary direction with respect to the static field axis. The case of a weak static field is analysed in detail for arbitrary strength of the laser field. The separation of the uniform field and laser field effects allows simple and appealing expressions to be obtained for photodetachment partial widths via static-field-free amplitudes in the case of an arbitrary number of absorbed photons and quantum numbers of the initial state. Some implications of the present results for the interpretation of recent experiments on H- Stark photodetachment are discussed.

AB - A Green function approach is employed to obtain general expressions for electron flux distributions and partial widths in multiphoton detachment from a negative atomic ion placed into a uniform static electric field. The electric vector for the linearly polarized laser field has arbitrary direction with respect to the static field axis. The case of a weak static field is analysed in detail for arbitrary strength of the laser field. The separation of the uniform field and laser field effects allows simple and appealing expressions to be obtained for photodetachment partial widths via static-field-free amplitudes in the case of an arbitrary number of absorbed photons and quantum numbers of the initial state. Some implications of the present results for the interpretation of recent experiments on H- Stark photodetachment are discussed.

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