Correlated electron and nuclear dynamics in strong field photoionization of H2+
Entity
UAM. Departamento de QuímicaDate
2013-03-12Citation
10.1103/PhysRevLett.110.113001
Physical Review Letters 110.11 (2013): 113001
ISSN
0031-9007 (print); 1079-7114 (online)DOI
10.1103/PhysRevLett.110.113001Funded by
This work was accomplished with an allocation of computer time from Mare Nostrum BSC and CCC-UAM, and was partially supported by the MICINN Projects No. FIS2010-15127, No. ACI2008-0777, and No. CSD 2007-00010, the ERA-Chemistry Project No. PIM2010EEC-00751, the European Grants No. MCITN CORINF and No. MC-RG ATTOTREND, the European COST Action CM0702, and the Advanced Grant of the European Research Council, Grant No. XCHEM 290853. R. E. F. S. acknowledges a Ph.D. contract from ITN CORINF. P. R. acknowledges a Juan de la Cierva contract grant from MICINNProject
info:eu-repo/grantAgreement/EC/FP7/264951; info:eu-repo/grantAgreement/EC/FP7/268284; info:eu-repo/grantAgreement/EC/FP7/290853Editor's Version
http://dx.doi.org/10.1103/PhysRevLett.110.113001Subjects
QuímicaRights
© 2013 American Physical SocietyAbstract
We present a theoretical study of H2+ ionization under strong IR femtosecond pulses by using a method designed to extract correlated (2D) photoelectron and proton kinetic energy spectra. The results show two distinct ionization mechanisms—tunnel and multiphoton ionization—in which electrons and nuclei do not share the energy from the field in the same way. Electrons produced in multiphoton ionization share part of their energy with the nuclei, an effect that shows up in the 2D spectra in the form of energy-conservation fringes similar to those observed in weak-field ionization of diatomic molecules. In contrast, tunneling electrons lead to fringes whose position does not depend on the proton kinetic energy. At high intensity, the two processes coexist and the 2D plots show a very rich behavior, suggesting that the correlation between electron and nuclear dynamics in strong field ionization is more complex than one would have anticipated
Files in this item
Google Scholar:Silva, R. E. F.
-
Catoire, F.
-
Rivière, Paula
-
Bachau, H.
-
Martín García, Fernando
This item appears in the following Collection(s)
Related items
Showing items related by title, author, creator and subject.