2ND-ORDER NONLINEAR-OPTICAL SUSCEPTIBILITY MEASUREMENT OF CRYSTAL WITH A GLASS PRISM IN TOTAL-REFLECTION GEOMETRY

Second-harmonic generation in a uniaxial crystal in total-reflection g eometry is precisely measured. A Y-cut plate and a Z-cut plate of quar tz crystals were used as samples. The incident wave is totally reflect ed by a glass prism in contact with the sample crystal, and an evanesc ent wave penetrates into the sample as a fundamental wave. The results gave the quantitative values of the components for a nonlinear optica l susceptibility tensor with various polarizations and with Y-cut and Z-cut quartz plates. This technique can be applied to various samples to evaluate their nonlinear optical efficiencies.