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Multiphoton detachment of H-
Chu, Shih-I Laughlin, Cecil
Chu, Shih-I
Laughlin, Cecil
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Abstract
Multiphoton detachment of H- is considered. An accurate one-electron model, which reproduces precisely the known H- detachment energy and the low-energy e-H(1s) elastic-scattering phase shifts, is developed. Generalized cross sections, based on lowest-nonvanishing-order perturbation theory, are evaluated by an accurate and efficient numerical algorithm for the solution of the associated set of inhomogeneous differential equations. Two- to eight-photon detachment cross sections are determined and compared with a recent one-electron model and two-electron ab initio calculations. It appears that the present study provides consistent results with an accuracy for higher-order (n>3) photon-detachment cross sections comparable to that of lower orders (n=2,3). Average detachment rates for linearly polarized light are calculated and compared with recent experimental measurements. It is found that, for higher-order photon detachment, the rates for circular polarization are small in comparison with the rates for linear polarization.
Description
This is the published version, also available here: http://dx.doi.org/10.1103/PhysRevA.48.4654.
Date
1993-12-01
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American Physical Society
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Chu, Shih-I. & Laughlin, Cecil. "Multiphoton detachment of H-." Phys. Rev. A 48, 4654 – Published 1 December 1993. http://dx.doi.org/10.1103/PhysRevA.48.4654.