| DOI | Trouver le DOI : https://doi.org/10.1080/09500340.2013.771755 |
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| Auteur | Rechercher : Comtois, D.; Rechercher : Bandulet, H.-C.; Rechercher : Spanner, M.1; Rechercher : Pavičić, D.1; Rechercher : Meckel, M.1; Rechercher : Zeidler, D.1; Rechercher : Pépin, H.; Rechercher : Dörner, R.; Rechercher : Kieffer, J.-C.; Rechercher : Villeneuve, D. M.1; Rechercher : Corkum, P. B.1; Rechercher : Staudte, A.1 |
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| Affiliation | - Conseil national de recherches du Canada. Technologies de sécurité et de rupture
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| Format | Texte, Article |
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| Sujet | velocity map imaging; laser induced electron diffraction; orbital imaging |
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| Résumé | In a velocity map imaging spectrometer, we measured the electron momentum distributions from the ionization of O molecules with 800 nm wavelength, 40 fs laser pulses at a peak intensity of W cm. The molecules were aligned at 0, 45 and 90 relative to the laser polarization prior to ionization. We show that for all alignments the low momentum region – populated by direct electrons which do not recollide with the parent ion – is consistent with the ionized orbital being filtered and projected onto the continuum electron wave packet. In the high momentum region – populated by rescattered electrons – we observe that the pattern created by diffraction of the recolliding wave packet by the ion core disappears as the alignment gets closer to the laser field axis. We find that a two-slit diffraction model agrees well with the results for molecules aligned at 90, but only partially predicts the decrease in the diffraction signature for smaller alignment angles. |
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| Date de publication | 2013-03-06 |
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| Dans | |
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| Langue | anglais |
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| Publications évaluées par des pairs | Oui |
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| Numéro NPARC | 21270333 |
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| Exporter la notice | Exporter en format RIS |
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| Signaler une correction | Signaler une correction (s'ouvre dans un nouvel onglet) |
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| Identificateur de l’enregistrement | c1b66326-d38b-49b0-ba27-5d7722c084c5 |
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| Enregistrement créé | 2014-01-30 |
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| Enregistrement modifié | 2020-04-22 |
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