期刊
JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS
卷 45, 期 7, 页码 -出版社
IOP PUBLISHING LTD
DOI: 10.1088/0953-4075/45/7/074016
关键词
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资金
- Nederlandse organisatie voor Wetenschappelijk Onderzoek (NWO)
- European research council through the 'ATTOFEL' Marie Curie Initial training network
- Chemical Sciences, Geosciences and Biosciences Division, Office of Basic Energy Sciences, Office of Science, US Department of Energy
- Robert A. Welch Foundation of Houston, TX [A-1020]
We present an experimental and theoretical investigation of the angular distributions of electrons ejected in aligned molecules by extreme ultra-violet ionization using a high harmonic generation (HHG) source. Impulsive alignment in O-2, N-2 and CO molecules was achieved using a near-IR laser pulse and the photoelectron angular distribution after ionization by a fs harmonic comb composed of harmonic H11 to H29 (17.5-46 eV) was recorded at the maximum of both alignment and anti-alignment. The experiment reveals signatures that are specific for the electronic orbitals that are ionized as well as the onset of the influence of the molecular structure and is well reproduced by theoretical calculations based on the multichannel Schwinger configuration interaction method.
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