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Updated: Jun 8, 2026

Direct Imaging of Laser-driven Ultrafast Molecular Rotation
Published on: February 4, 2017
Application of smooth exterior scaling method to study the time dependent dynamics of H2(+) in intense laser field
Dhruba Jyoti Kalita1, Ashish K Gupta
1Department of Chemistry, Indian Institute of Technology, Guwahati, Assam 781039, India.
Abstract:
A study of the multiphoton dissociation of H(2)(+) in intense laser field using the smooth exterior scaling method to calculate resonance states is presented. This method is very attractive as it does not disturb the interaction region. The wave functions calculated with this method provide indisputable proof in support of the mechanisms of the different phenomena happening during photodissociation. Wave functions corresponding to the "vibrationally trapped" (bond-hardening) states are found. A unequivocal mechanism for "bond-softening" is provided. It is observed that with an increase in intensity, the lifetime of low vibrational level increases. The mechanism for this novel phenomenon is also explained.

