Abstract
The dissociation of D in intense ultrashort laser pulses is investigated using an improved coincidence three-dimensional momentum imaging method that allows clear separation of all fragmentation channels and the determination of the kinetic energy release down to zero. Our results, using 10-fs, 790-nm pulses, suggest that a large peak at low kinetic energy release is associated with the D + D dissociation channel of D. The most likely dissociation pathways leading to two-body breakup of D are identified with additional measurements using 25-fs, 790-nm and 40-fs, 395-nm pulses. We also show that the slow D + D dissociation dynamics can be manipulated by the pulse duration.
- Received 12 December 2011
DOI:https://doi.org/10.1103/PhysRevA.85.023419
©2012 American Physical Society