Abstract
An optimisation method using optimal control theory based adaptive simulated annealing technique has been explored to get optimised laser pulses for selective vibrational excitations and photo-dissociation of the HBr+ in its ground electronic state. Potential energy curve of the system has been obtained by coupled cluster singles and doubles (CCSD) level calculation, using aug-cc-pVTZ as basis set. To have a simple pulse, a limited number of parameters is chosen as variables and the technique so developed works well. The study is extended with chirping field frequency to explore the effect of chirping in dynamics.
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