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Effect of the initial phase of the field in ionization by ultrashort laser pulses |
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| Authors: | E Cormier P Lambropoulos |
| Institution: | (1) Laboratoire des Collisions Atomiques, CPTMB (UPRESA 5468), Université de Bordeaux I, 351 Cours de la Libération, 33405 Talence, France, FR;(2) Service des Photons, Atomes et Molécules, DRECAM, Centre d'études de Saclay, 91191 Gif-Sur-Yvette, France, FR;(3) Max-Planck-Institut für Quantenoptik, Hans-Kopfermann-str. 1, 85748 Garching, Germany, DE |
| Abstract: | We report on observable new features related to ionization of atoms by laser pulses of only few cycles and some intensity. We show that for particular photo-electron energies, the angular distribution becomes asymmetric and that this asymmetry is related to the initial phase of the field. Received: 4 November 1997/Revised: 21 January 1998/Accepted: 23 February 1998 |
| Keywords: | PACS 32 80 -t Photon interactions with atoms - 42 50 Dv Nonclassical field states squeezed antibunched and sub-Poissonian states operational definitions of the phase of the field phase measurements - 32 80 Wr Other multiphoton processes |
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