Research Studies on Tunable Optical Parametric Oscillators.

摘要

The primary goal of this contract is research studies of tunable optical sources,and the development of coherent sources in new spectral regions. In particular, a major project this year has been IR image up-conversion based on three frequency summing in metal vapors. A general theory of the efficiency of these up-converters as a function of the pump laser spectrum,detuning,and linewidth,and of the linewidth of the selected non-allowed atomic transition has been developed. (Author)