Optical phase and the ionization-dissociation dynamics of excited H{sub 2}

Journal Article · Thu Jan 14 00:00:00 EST 2010 · Journal of Chemical Physics

DOI:https://doi.org/10.1063/1.3285710· OSTI ID:21559827

Kirrander, A; Fielding, H H ^[1]; Jungen, Ch ^[2]

---

1. Department of Chemistry, University College London, 20 Gordon Street, London WC1H 0AJ (United Kingdom)
2. Laboratoire Aime Cotton du CNRS, Universite de Paris-Sud, 91405 Orsay (France)

We investigate the influence of optical phase on the dynamics of hydrogen molecules excited to a spectral region with competition between predominantly rotational ionization, and dissociation. We show that an appropriate choice of optical phase changes the relative timing of the ionization and dissociation. Furthermore, the temporal width of the ionization and dissociation fluxes can also be controlled, in a matter-wave analogy of transform-limited optical pulses. The close link between the optical phase and the photoinduced electronic and molecular dynamics has important implications for femtochemistry.

• OSTI ID: 21559827
• Journal Information: Journal of Chemical Physics, Vol. 132, Issue 2; Other Information: DOI: 10.1063/1.3285710; (c) 2010 American Institute of Physics; ISSN 0021-9606
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
DISSOCIATION
HYDROGEN
MATTER
MOLECULAR DYNAMICS METHOD
MOLECULES
PHOTOIONIZATION
PHOTOLYSIS
PHOTON-MOLECULE COLLISIONS
ROTATIONAL STATES
CALCULATION METHODS
CHEMICAL REACTIONS
COLLISIONS
DECOMPOSITION
ELEMENTS
ENERGY LEVELS
EXCITED STATES
IONIZATION
MOLECULE COLLISIONS
NONMETALS
PHOTOCHEMICAL REACTIONS
PHOTON COLLISIONS