Transient solvent dynamics and incoherent control of photodissociation pathways in I-2 cluster ions

Andrei M Sanov, Sreela Nandi, W. Carl Lineberger

Research output: Contribution to journalArticle

30 Citations (Scopus)

Abstract

Detailed time-resolved photodissociation and caging dynamics in clusters are studied using I-2(OCS)11 as a model system. We report new observations of product channel-dependent properties of nuclear coherence in the dissociated chromophore, reflecting complex dynamics of the solvent cage. The coherence feature is most pronounced in the caged two-photon channels and its relative amplitude increases with the product size. Shorter delays, on the time scale of coherent I⋯I- motion, favor larger products, allowing for incoherent control of two-photon dissociation pathways by appropriately timing the two laser pulses. As an example of such control, I-2(OCS)2 is produced most effectively by a limited set of pump-probe excitations at short delays. We emphasize generality of these results that relate to caging dynamics in any cluster ions.

Original languageEnglish (US)
Pages (from-to)5155-5158
Number of pages4
JournalThe Journal of Chemical Physics
Volume108
Issue number13
StatePublished - Apr 1 1998
Externally publishedYes

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Photodissociation
photodissociation
Ions
products
Photons
ions
photons
Chromophores
chromophores
Laser pulses
time measurement
Pumps
dissociation
pumps
probes
pulses
excitation
lasers

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

Cite this

Transient solvent dynamics and incoherent control of photodissociation pathways in I-2 cluster ions. / Sanov, Andrei M; Nandi, Sreela; Lineberger, W. Carl.

In: The Journal of Chemical Physics, Vol. 108, No. 13, 01.04.1998, p. 5155-5158.

Research output: Contribution to journalArticle

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