Efficient frequency up-conversion in resonant coherent media
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The techniques of atomic coherence and interference used for efficient frequency up-conversion of low power, continuous wave laser fields were demonstrated. An experiment in which two infrared laser beams were efficiently converted into far infrared and blue radiation in a fully resonant wave mixing process was described. The collimated infrared field was observed to be affected only marginally by the presence of the blue generation. The spectral properties of the generated light were studied using Fabry-Perot reference cavities. Oxford University Press 2002.