Use of an intense microwave laser to dissociate a diatomic molecule: Theoretical prediction of dissociation dynamics

Journal of Chemical Sciences

Amita Wadehra1¹  B M Deb3² 

[1] Department of Chemistry, Panjab University, Chandigarh 160 014, India$$;Department of Chemical Sciences, Indian Institute of Science Education and Research-Kolkata, Mohanpur Campus, P.O. BCKV Main Campus, Mohanpur 741 252, India$$

关键词: Above-threshold dissociation;    microwave dissociation;    high harmonics generation;    time-dependent quantum mechanics;    Morse oscillator.;   

DOI  :  

来源: Indian Academy of Sciences

【 摘 要 】

By employing an intense microwave laser of wavelength 116.65 𝜇m with intensities 1 × 1013 and 5 × 1018Wcm−2, respectively, the conclusion is reached theoretically and computationally that it is possible to dissociate the CO molecule, modelled as a Morse oscillator. It is predicted that for above-threshold dissociation (ATD), the molecule should absorb 1044 photons of the given wavelength in order to reach the lowest edge of the vibrational continuum. A consistent analysis of the predicted dissociation process is provided though the time-dependent probability density, dissociation probability, norm, potential function, HHG and ATD spectra, obtained by numerically solving the time-dependent vibrational Schödinger equation.

【 授权许可】

Unknown