On optimal designing of low frequency polychromatic fields for facile photo-dissociation of model diatomic molecules

Journal of Chemical Sciences

S P Bhattacharyya1¹  R Sharma¹  K Maji¹  S Ghosh¹ 

[1] Department of Physical Chemistry, Indian Association for the Cultivation of Science, Jadavpur, Kolkata 700 032$$

关键词: Photodissociation;    TDFGH;    genetic algorithm;    time dependent Hellmann-Feynmann theorem;    quantum phase space.;   

DOI  :  

来源: Indian Academy of Sciences

【 摘 要 】

The dissociation of a diatomic molecule in low frequency polychromatic fields of moderate intensities is studied. Genetic Algorithm is invoked to search out a set of four optimal non-resonant frequencies (𝜔1 - 𝜔4), intensities (𝜖1 - 𝜖4) the and phase angles (𝛿1 - 𝛿4), for achieving a facile photo dissociation. Time-dependent Hellmann-Feynman theorem is used to gain insight into the frequency resolved energy absorption pattern. The ‘quantum phase space’ structures indicate occurrence of bond breaking dynamics akin to the classical one.

【 授权许可】

Unknown