KDP Potassium Dihydrogen Phosphate and KD*P or DKDP Potassium
Dideuterium Phosphate are among the most widely-used commercial NLO materials,
characterized by good UV transmission, high damage threshold, and high
birefringence, though their NLO coefficients are relatively low. They are
usually used for doubling, tripling and quadrupling of a Nd:YAG laser under the
room temperature. In addition, they are also excellent electro-optic crystals
with high electro-optic coefficients, widely used as electro-optical
modulators, such as Q-switches, Pockels Cells, etc.
