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Above-threshold dissociation of the molecular ion HD+ in a moderate-intensity femtosecond laser field from the calculation of time-of-flight spectra.
- Source :
-
Physical Review A: Atomic, Molecular & Optical Physics . Jul2017, Vol. 96 Issue 1, p1-1. 1p. - Publication Year :
- 2017
-
Abstract
- The dissociation of the molecular ion HD+ in moderate-intensity laser pulses is studied using the time-dependent quantum wave-packet method. Simulations of the time-of-flight (TOF) neutral atom spectra produced from dissociation of the v=10 vibrational state at a laser intensity of 1012W/cm² and from v=0 at the intensity of 5×1012W/cm² are calculated. Good agreement is found with previous experimental results [P. A. Orr et al., Phys. Rev. Lett. 98, 163001 (2007) and J. D. Alexander et al., J. Phys. B 42, 154027 (2009)]. Furthermore, the kinetic energy distribution of the dissociated fragments of molecular ion HD+ is studied within the moderate laser-intensity region from 1012 to 5×1012W/cm² by considering initial vibrational states from v=0 to 15. It is found that the above-threshold dissociation could be more obviously observed from the TOF spectra when the initial vibrational state is set as v=6 for a moderate-intensity femtosecond laser field. [ABSTRACT FROM AUTHOR]
- Subjects :
- *IONS
*FEMTOSECOND lasers
*WAVE packets
Subjects
Details
- Language :
- English
- ISSN :
- 10502947
- Volume :
- 96
- Issue :
- 1
- Database :
- Academic Search Index
- Journal :
- Physical Review A: Atomic, Molecular & Optical Physics
- Publication Type :
- Periodical
- Accession number :
- 124640190
- Full Text :
- https://doi.org/10.1103/PhysRevA.96.013426