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|Title: ||Selective control of HOD photodissociation using CW lasers|
|Authors: ||SARMA, M|
|Keywords: ||1st absorption-band|
grid hamiltonian method
|Issue Date: ||2007|
|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.|
|Appears in Collections:||Proceedings papers|
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