The Resonance Fluorescence Of Λ-type Three-level Atoms In Two-mode Cavity

The interaction between atoms and laser is always an important research subject of quantum optics. As a fundamental problem of it,resonance fluorescence has been widely noted. The studying of atomic resonance fluorescence spectrum structure can provides us important reference for exploring the the interaction between atoms and laser.Early research shows that the resonance fluorescence spectrum of two-level atoms under the action of a strong driving field presents three-peak structure.If the atom-s are put in a cavity,the interaction between them and a vacuum field makes the spontaneous emission enhance or suppress.Make the cavity resonate to the sideband or center frequency, we can get different resonance fluorescence spectrum. With the research deepening, multi-level atoms in multi-mode cavity resonance fluorescence is gradually being noticed. Based on this,we mainly discuss the resonance fluorescence spectrum of A-type three-level atoms in two-mode cavity in this paper,which is driv-en by two classical fields. When to get the resonance fluorescence spectrum, Langevin approach is adopted. Firstly,the steady-state solution of the system and diffusion coef-ficient matrix are calculated,secondly the Langevin equation is linearized to get drift matrix,then these matrixes are substituted into the the expression of output spectrum matrix to get the specific expression of resonance fluorescence spectrum in dressed state representation.Finally, results that narrowing of the sideband and the vacuum Rabi splitting of the sideband are received and Bogoliubov mode is used to get the absorption and amplification regions.Applying to the Bogoliubov mode,we analyse the results of resonance fluorescence spectrum.