Moreover, for laser intensities of the order of 10 18W/cm2, for typical frequencies, the kinetic energy transferred to the atomic system by the field is of the order of the rest mass of the electron [6]. Thus, the laser-atom interaction needs a relativistic treatment [7](nowadays lasers with intensities up to 1021W/cm2 are experimentally feasible).
In this field of research, my work concerns basically
four phenomena: High-harmonic generation,
Stabilization,
Above-threshold ionization and Nonsequential double ionization. In the four cases,
only the response of a single atom is considered. Furthermore, for the first three phenomena
we consider the atom to have only a single electron,
assumption known as the Single Active Electron (SAE)
approximation, in the nonrelativistic regime. For nonsequential double ionization, we address electron-electron correlation.
[1] See, e.g., M. Gavrila eds., ``Atoms in Intense Laser Fields'' (Advances in Atomic, Molecular and Optical Physics, Academic, London, 1992). |
[2] P. Agostini, E. Mevel, P. Breger, A. Migus and L.F DiMauro,``Super Intense Laser-Atom Physics '', B. Piraux et al. eds., p. 155 (Plenum, New York, 1993). |
[3] See, e.g., P. Gibbon and E. Förster, Plasma Phys. Control. Fusion 38, 769 (1996); A. Pukhov, J. Meyer-ter-Vehn, Phys. Rev. Lett. 76, 3975 (1996); ibid. 79, 2686 (1997). |
[4] H. Reiss, J. Math. Phys. 3, 59 (1962); N.B. Nahrozhnhy, Sov. Phys. JETP 20, 622 (1967); C. Symanowski, V. Véniard, R. Taïeb, A. Maquet and C.H. Keitel, Phys. Rev. 56, 3846 (1997); G. Pretzler, A. Saemann, A. Pukhov, D. Rudolph, T. Schätz, U. Schramm, P. Thirolf, D. Habs, J. Meyer-ter-Vehn, G.D. Tsakiris and K.J. Witte, Phys. Rev. E 58, 1165 (1998). |
[5] See, e.g., A. Rundquist, C.G. Durfee III, Z. Chang, C. Herne, S. Backus, M.M. Murnane, H.C. Kapteyn, Science 280, 1412 (1998); X. F. Wang, R. Fedoseyevs, G.D. Tsakiris, Opt. Comm. 146, 363 (1998); I.P. Christov, M.M. Murnane and H.C. Kapteyn, Phys. Rev. A 57, R2285 (1998). |
[6] See, e.g, Stuart et al, Opt. Lett 22, 242 (1997). |
[7] L.S. Brown and T.W.B. Kibble, Phys.Rev. 133, 705 (1964); J.H. Eberly and A. Sleeper, Phys. Rev 176, 1570 (1968); A. Sarachik and E.S. Chappert, Phys. Rev. D 1, 2738 (1970); A. Bugacov, M. Pont and R. Shakeshaft, Phys. Rev. A 48, R4027 (1993); M. Protopapas, C.H. Keitel and P.L. Knight, J. Phys. B 29, L591 (1996); N. Kylstra et al., J. Phys. B 30, L449 (1997); U.W. Rathe, C.H. Keitel, M. Protopapas, and P.L. Knight, J. Phys. B 30, L531 (1997). |