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Off-shell and on-shell low-frequency approximations for potential scattering in a strong elliptically polarized laser field

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Milosevic, DB

Applying an appropriate unitary transformation, a nonperturbative result for the T matrix for potential scattering in a strong elliptically polarized laser field is derived. The approximation obtained is exact in the high-intensity laser field limit. For lower laser field intensity, this result is an off-shell low-frequency approximation. The second result is a modified on-shell low-frequency approximation. For an elliptically polarized laser field, the momenta shifts are complex, but energies are still on shell. In the linear polarization case, these shifts are real and the range of applicability is substantially wider.

Document type Article de périodique (Journal article) – Article de recherche
Publication date 1996
Language Anglais
Journal information "Physical review. A, Atomic, molecular, and optical physics" - Vol. 53, no. 1, p. 619-622 (1996)
Peer reviewed yes
Publisher American Physical Soc (College Pk)
issn 1050-2947
e-issn 1094-1622
Publication status Publié
Affiliation UCL
Links
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  3. Mittleman Marvin H., Introduction to the Theory of Laser-Atom Interactions, ISBN:9781489924384, 10.1007/978-1-4899-2436-0
  4. Faisal Farhad H. M., Theory of Multiphoton Processes, ISBN:9781489919793, 10.1007/978-1-4899-1977-9
  5. Rosenberg Leonard, Theory of Electron-Atom Scattering in a Radiation Field Leonard Rosenberg, Advances in Atomic and Molecular Physics (1982) ISBN:9780120038183 p.1-52, 10.1016/s0065-2199(08)60238-9
  6. Krstic P S, Milosevic D B, On the low-frequency approximation for scattering of an electron in a laser field: An improved approximation, 10.1088/0022-3700/20/14/021
Bibliographic reference Milosevic, DB. Off-shell and on-shell low-frequency approximations for potential scattering in a strong elliptically polarized laser field. In: Physical review. A, Atomic, molecular, and optical physics, Vol. 53, no. 1, p. 619-622 (1996)
Permanent URL http://hdl.handle.net/2078.1/47396