Piezoelectric, nonliner optical, electro-optical, and pyroelectric properties of cesium hydrogen malate hydrate crystal

Abstract

Cesium hydrogen L-malate monohydrate crystals are shown to be a promising material for several potential applications. The crystals display an exceptionally large piezoelectric coefficient, d(22)=23.7 pm/V. They are also an efficient generator of the optical second harmonic of near infrared light, being close to an order of magnitude more efficient than potassium diphosphate crystals. A relatively strong electro-optic response (the figure of merit 1/2 parallel to n(1)r(12)-n(3)r(32)parallel to was found to be 4.83 pm/V) and a reasonable pyroelectric coefficient (p(2)=2.5x10(-4) mu C/cm(2) K at 245 K) are also observed. (c) 2007 American Institute of Physics.