Radiative transitions in atom-atom scattering in intense laser fields
The quantum nonperturbative analysis of Kroll and Watson for a two-level system of near-adiabatic atom-atom scattering in an intense laser-field mode is extended to treat a general multilevel system interacting with intense single- or many-field modes. A procedure for rigorously solving the adiabatic eigenvalue problem for the whole charge-field system is given. A new transition-probability formula is derived. Cross sections are calculated for the processes Li + H(X $sup 1$$Sigma$$sup +$) + $nu$$h$$omega$ $Yields$ Li + H(A $sup 1$$Sigma$$sup +$ or B $sup 1$Pi) where $nu$ > or = 1. Analysis of transition in an atom due to intensity variation of a laser pulse shows that desired transition probability per pulse (e.g., 1/2) may be achieved by varying the pulse parameters. For this, numerical results of Na(3s) + 2h$omega$ $Yields$ Na(5s) and of Li(2s) + 8h$omega$ $Yields$ Li(3s) are given. (AIP)
- Research Organization:
- Department of Physics and Lawrence Berkeley Laboratory, University of California, Berkeley, California 94720
- Sponsoring Organization:
- USDOE
- NSA Number:
- NSA-33-021188
- OSTI ID:
- 4076565
- Journal Information:
- Phys. Rev., A, v. 13, no. 1, pp. 139-147, Other Information: Orig. Receipt Date: 30-JUN-76
- Country of Publication:
- United States
- Language:
- English
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