A coherently driven two-level atom inside a parametric oscillator
Eyob Alebachew · Journal of Modern Optics · 2008
We consider a coherently driven two-level atom in an optical parametric oscillator operating below threshold. Applying the Hiesenberg and quantum Langevin equations, we study the power spectrum and the normalised second-order correlation function of the fluorescent light in the weak and strong driving light limits. We also calculate the atomic inversion in the two limiting cases. We find that the widths of the Mollow triplets increases as the degree of squeezing increases and even the side peaks disappear as the amount of squeezing approaches its maximum value. Moreover, the oscillatory nature of the second-order correlation function and the atomic inversion in the strong driving light limit damps out as the degree of squeezing increases.