Ultraviolet coherent generation from an optical klystron

The optical klystron, previously successfully optimized for the realization of a FEL on the ACO storage ring at Orsay, has been used as a nonlinear medium for producing harmonics of an external 1.06 μm Nd:YAG laser focused into it. Detailed experimental data are reported. A comparison with theoretical calculations shows very good qualitative and quantitative agreement between the experimental data and the theory.