Influence of a polar ambient medium on multiphoton resonances in dipole molecules

The influence of fluctuations of a polar ambient medium on multiphoton resonances in dipole molecules interacting with an external electromagnetic field is studied. It is shown that the electric fields created by the fluctuating dipole moments of the medium strongly influence the fulfillment of the multiphoton resonance conditions. Cases of slow and fast fluctuations of the polar ambient medium are considered separately. It is established that the temperature dependence of the multiphoton resonance probability is non-Arrhenius because of the influence of the fluctuations on the profile of the potential barrier. For fast fluctuations it is predicted that the rate of the multiphoton transition will decrease as the intensity of the fluctuations of the polar ambient medium increases. (C) MAIK "Nauka/Interperiodica".