Applied Physics Letters

Amplified phase conjugate reflection of KrF laser radiation

R. G., M. C. Gower

Published Dec 1, 1981• 37 citations

Abstract

We report amplified phase conjugate reflection of KrF laser radiation at 249 nm using degenerate four-wave mixing in a solution of rhodamine 6G in ethanol. Reflectivities of ∼300% have been measured. Saturation of the reflectivity at high probe intensities was observed and the temporal dependence of the reflectivity has been investigated. The importance of mutual coherence of the probe and pump for the thermally induced nonlinearity involved in the process has been demonstrated.

DOI: 10.1063/1.92610

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