Investigation on probing quadratic electro-optic coefficient of tantalum potassium niobate crystal based on Fourier transform

摘要

A method for probing quadratic electro-optic(QEO) coefficient of tantalum potassium niobate crystal based on Fourier transform was proposed. We acquired all the independent component of QEO coefficient tensor of crystal, they are h(11) = 1.56 x 10(-14) m(2)/V-2, h(12) = 1.24 x 10(-14) m(2)/V-2 and h(44) = 0.160 x 10(-14) m(2)/V-2 respectively. With the help of the computer digital image processing technology, this method should have further application prospect in the areas of optical properties parameters measuring to the optical functional materials. (C) 2015 Elsevier B.V. All rights reserved.