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Phase-dependent harmonic emission with ultrashort laser pulses

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de Bohan, A Antoine, Philippe [UCL] Milosevic, DB Piraux, Bernard [UCL]

We consider harmonic generation by atoms exposed to an intense laser pulse of a few femtoseconds. Our results, obtained by solving numerically the corresponding three-dimensional time-dependent Schrodinger equation, demonstrate the strong sensitivity of the harmonic spectra to the phase of the laser. These results are explained in terms of both quantum and classical dynamics. We show that this phase sensitivity may be exploited in order to probe the laser phase for ultrashort pulses. Our discussion about this new method of diagnosis takes into account propagation effects.

Document type Article de périodique (Journal article) – Article de recherche
Access type Accès restreint
Publication date 1998
Language Anglais
Journal information "Physical Review Letters" - Vol. 81, no. 9, p. 1837-1840 (1998)
Peer reviewed yes
Publisher American Physical Soc (College Pk)
issn 0031-9007
e-issn 1079-7114
Publication status Publié
Affiliation UCL - SC/PHYS - Département de physique
Links
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Bibliographic reference de Bohan, A ; Antoine, Philippe ; Milosevic, DB ; Piraux, Bernard. Phase-dependent harmonic emission with ultrashort laser pulses. In: Physical Review Letters, Vol. 81, no. 9, p. 1837-1840 (1998)
Permanent URL http://hdl.handle.net/2078.1/45107