Abstract

Organic molecular salts can be highly nonlinear optical materials which show considerable promise for second-order (χ⁽²⁾) nonlinear optical applications such as frequency conversion and electro-optic modulation.^[1−3] While the corresponding third-order (χ⁽³⁾) nonlinear properties have been less extensively studied,^[4] structural considerations and preliminary experimental measurements indicate that the effective χ⁽³⁾ of some single crystal materials may be exceptionally large. One such material is Dimethy Amino N-Methyl Stilbazolium Tosy- late (DAST), the electro-optic properties of which have been explored cooperatively by ourselves and colleagues at the Jet Propulsion Laboratory (JPL).^[5]

© 1992 IQEC