Optical Multi-wave Mixing Process Based on Electromagnetically Induced Transparency

In this paper, we propose and analyze an optical multi-wave mixingscheme for the generation of coherent light in a five-level atomic system inthe context of electromagnetically induced transparency. A detailedsemiclassical study of the propagation of generated mixing and probe fieldsis demonstrated. The analytical dependence of the generated mixing field onthe probe field and the respective detuning is predicted. Such a nonlinearoptical process can be used for generating short-wavelength radiation at lowpump intensities.