Berlin 2001 – wissenschaftliches Programm
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A: Atomphysik
A 5: Posters Tuesday (Photoionisation, Multi Photon Processes)
A 5.37: Poster
Dienstag, 3. April 2001, 12:30–15:00, AT3
Atoms interacting with intense, high-frequency laser pulses: effect of the magnetic field component on atomic stabilization — •Niels Kylstra1, Richard Worthington1, Javier Vazquez de Aldana2, Luis Roso2, Peter Knight3, and Akshay Patel3 — 1Department of Physics, University of Durham, Durham DH1 3LE, United Kingdom — 2Departamento de Fisica, Universidad de Salamanca, E-37008 Salamanca, Spain — 3Optics Section, Blackett Laboratory, Imperial College, London SW7 2BZ, United Kingdom
At sufficiently high laser intensities, the magnetic field component the laser field can strongly influence the stabilization of atoms in the high-frequency regime by inducing motion along the laser pulse propagation direction. Using a two-dimensional model atom, we investigate how the duration of the laser pulse affects stabilization in this non-dipole regime. Results obtained using a fully spatially dependent vector potential are compared to a long wavelength approximation. We also discuss non-dipole effects when the atom interacts with two counter-propagating pulses.