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Please use this identifier to cite or link to this item: http://dspace.library.iitb.ac.in/jspui/handle/100/1357

Title: Selective control of HOD photodissociation using CW lasers
Authors: SARMA, M
Keywords: 1st absorption-band
optimized initial-state
dependent schrodinger-equation
grid hamiltonian method
bond breaking
water molecule
dissociation dynamics
photodynamic control
model simulations
Issue Date: 2007
Publisher: SPRINGER
Citation: JOURNAL OF CHEMICAL SCIENCES,119(5)377-384
Abstract: Selective control of HOD photodissociation (H-O + D <- HOD -> H + O-D) has been theoretically investigated using CW lasers with appropriate carrier frequency and vertical bar 0, 0 >, vertical bar 0, 1 > and vertical bar 0, 2 > with zero quantum of excitation in the O-H bond and zero, one and two quanta of excitation in the O-D bond as the initial states. Results indicate that the O-H bond in HOD can be selectively dissociated with a maximum flux of 87% in the H + O-D channel from the ground vibrational state vertical bar 0, 0). For the O-D bond dissociation, it requires two quanta of excitation (vertical bar 0, 2 >) in the O-D mode to obtain 83% flux in the H-O + D channel. Use of a two colour laser set-up in conjunction with the field optimized initial state (FOIST) scheme to obtain an optimal linear combination of vertical bar 0, 0 > and vertical bar 0, 1 > vibrational states as the initial state provides an additional 7% improvement to flux in the H-O + D channel as compared to that from the pure vertical bar 0, 1 > state.
URI: http://dx.doi.org/10.1007/s12039-007-0049-x
ISSN: 0253-4134
Appears in Collections:Proceedings papers

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