Electro-optic Measurements in Single-Crystal Films of a Combination of Materials Involving DAST and IR-125

Single crystal films of a combination of materials involving DAST and a dye molecule IR-125 have been prepared using the modified shear method. X-ray diffraction results indicate a [001] orientation of the film similar to a DAST single-crystal film. The electro-optic measurements of the DAST-IR125 films have been performed using field induced birefringence in the cross polarized geometry at 633 nm and 1550 nm. A modulation of 14 percent has been observed in a single pass through the film for a field of 1 Volt/micron at 633 nm. The results indicate exceptionally high electro-optic coefficients at both of the wavelengths (633 and 1550 nm).