A treatment of the absorption spectrum for a multiphoton V-type three-level atom interacting with a squeezed coherent field in the presence of nonlinearities

We study the interaction of a three-level atom with a single mode field through multiphoton transition in a cavity,taking explicitly into account the existence of forms of nonlinearities of both the field and the intensity-dependent atom-field coupling. the analytical forms of the absorption spectrum is calculated using the dressed states of the system. the effects of photon multiplicities,mean photon number,detuning,kerr-like medium,and the intensity-dependent coupling functional on the absorption spectrum are analyzed. copyright © 2011 f. k. faramawy.