Fabrication of highly perfect single crystals and nonlinear optical properties of organic material, 3-methyl-4-methoxy-4'-nitrostilbene (MMONS)

Summary form only given. 3-methyl-4-methoxy-4'-nitrostilbene (MMONS) exhibits one of the largest power second harmonic signals and thus has a great potential in frequency doubling and parametric conversion. The crystal. possesses highly polar structure which leads to the abnormal growth behavior in the polar c-direction. The single crystals of a size 40/spl times/35/spl times/30 mm/sup 3/ and of an excellent quality could be grown from methyl ethyl ketone solution by controlled solvent evaporation. Refractive indices were measured by using Brewster angle method. Phase matching angles for the second harmonic generation were determined from the refractive index data and it was found that the type I and type II phase matchings are possible.<
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