INVESTIGATION OF ELECTROOPTIC MODULATION FROM ORGANIC-INORGANIC CRYSTALS

This paper presents the first investigation of the characteristics of organic-inorganic crystals for a possible use in electrooptic devices. Electrooptic and dielectric properties in an electric field of freque ncy varying from 1 kHz to 1 MHz applied along the c-axis were determin ed in 2-amino-5-nitropyridinum dihydrogenphosphate (2A5NPDP) and 2-ami no-5-nitropyridinum dihydrogenarsenate (2A5NPDAs) around room temperat ure at a wavelength of 633 nm. The values of the thermooptic coefficie nts are also given. The whole set of properties are discussed in terms of figures of merit and compared to those of other crystals used for electrooptic modulation of a laser beam.