Direct Measurement of the Angular Dependence of Ionization forN 2 ,O 2 , andCO <…
Author(s) -
D. Pavičić,
Kevin F. Lee,
D. M. Rayner,
P. B. Corkum,
D. M. Villeneuve
Publication year - 2007
Publication title -
physical review letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.688
H-Index - 673
eISSN - 1079-7114
pISSN - 0031-9007
DOI - 10.1103/physrevlett.98.243001
Subject(s) - ionization , physics , field (mathematics) , atomic physics , molecule , measure (data warehouse) , laser , ion , quantum mechanics , computer science , data mining , mathematics , pure mathematics
We experimentally measure the ionization probability as a function of alignment angle of three molecules in intense laser fields: nitrogen, oxygen, and carbon dioxide. Unlike atoms, molecules have a rotational degree of freedom. By controlling the alignment of the molecule relative to the laser field, molecules offer additional ways to understand strong-field ionization. The angular dependence of ionization directly maps to the orbital symmetry of each molecule. Carbon dioxide is seen to have a very sharp preference for ionization when aligned at 45 degrees to the laser field, in significant disagreement with current theories.Peer reviewed: YesNRC publication: Ye
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