Multiphoton single ionization of two-electron systems in intense laser fields

Bhattacharyya S, Mukherjee M, Mazumder M, Chakrabarti J, Faisal F (2009)
PHYSICAL REVIEW A 80(1).

Journal Article | Published | English

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Abstract
Multiphoton single-ionization of a two-electron system (He and He-like ions) in intense circularly polarized laser field is reported in a relativistic field theoretic method. Coulomb-correction factor is introduced to estimate the effect of the Coulomb field of the residual ion on the rate. Antisymmetric wave function is considered both in the initial and in the final state. The spin-specific currents are calculated. Angular asymmetry in current generation is noted with the change in the spin direction of the ionized electron. Coulomb-corrected relativistic-result for total rate is compared with the Coulomb-corrected nonrelativistic KFR rate. At the high-intensity regime nonrelativistic rate overestimates the relativistic rate. Formation of orthopositronium and parapositronium from positronium negative ion by multiphoton ionization is discussed.
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Bhattacharyya S, Mukherjee M, Mazumder M, Chakrabarti J, Faisal F. Multiphoton single ionization of two-electron systems in intense laser fields. PHYSICAL REVIEW A. 2009;80(1).
Bhattacharyya, S., Mukherjee, M., Mazumder, M., Chakrabarti, J., & Faisal, F. (2009). Multiphoton single ionization of two-electron systems in intense laser fields. PHYSICAL REVIEW A, 80(1).
Bhattacharyya, S., Mukherjee, M., Mazumder, M., Chakrabarti, J., and Faisal, F. (2009). Multiphoton single ionization of two-electron systems in intense laser fields. PHYSICAL REVIEW A 80.
Bhattacharyya, S., et al., 2009. Multiphoton single ionization of two-electron systems in intense laser fields. PHYSICAL REVIEW A, 80(1).
S. Bhattacharyya, et al., “Multiphoton single ionization of two-electron systems in intense laser fields”, PHYSICAL REVIEW A, vol. 80, 2009.
Bhattacharyya, S., Mukherjee, M., Mazumder, M., Chakrabarti, J., Faisal, F.: Multiphoton single ionization of two-electron systems in intense laser fields. PHYSICAL REVIEW A. 80, (2009).
Bhattacharyya, S., Mukherjee, Mahua, Mazumder, Mina, Chakrabarti, J., and Faisal, Farhard. “Multiphoton single ionization of two-electron systems in intense laser fields”. PHYSICAL REVIEW A 80.1 (2009).
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