Using Schroedinger-Maxwell formalism, we propose and analyze an opticalfour-wave mixing (FWM) scheme for the generation of coherent light in a coherent six-level atomicmedium based on dual electromagnetically induced ...Using Schroedinger-Maxwell formalism, we propose and analyze an opticalfour-wave mixing (FWM) scheme for the generation of coherent light in a coherent six-level atomicmedium based on dual electromagnetically induced transparency (EIT). We show that the significantlyenhanced conversion efficiency enabled by ultraslow propagation of pump waves has no directrelationship with the single-photon detuning, which is different from the FWM with a single EIT. Themost important feature is that our scheme is also capable of inhibiting and delaying the onset ofthe detrimental three-photon destructive interference that looks like a recent scheme [Phys. Rev.Lett. 91 (2003) 243902] and may be used for generating short-wave-length coherent radiation.展开更多
文摘Using Schroedinger-Maxwell formalism, we propose and analyze an opticalfour-wave mixing (FWM) scheme for the generation of coherent light in a coherent six-level atomicmedium based on dual electromagnetically induced transparency (EIT). We show that the significantlyenhanced conversion efficiency enabled by ultraslow propagation of pump waves has no directrelationship with the single-photon detuning, which is different from the FWM with a single EIT. Themost important feature is that our scheme is also capable of inhibiting and delaying the onset ofthe detrimental three-photon destructive interference that looks like a recent scheme [Phys. Rev.Lett. 91 (2003) 243902] and may be used for generating short-wave-length coherent radiation.
