Dielectric properties, including linear (refractive index) and second-order
nonlinear optical responses, of LiNb1-yTayO3-type mixed single crystals wi
th y = 0.00, 0.81, 0.92, 0.97, and 1.00 have been quantitatively studied. B
ased on the corresponding crystal compositions, the chemical bond method wa
s applied. The results show that the dielectric susceptibilities at 1.064 m
u m decrease remarkably with increasing tantalum content in the mixed-cryst
al system lithium niobate-tantalate. (C) 2000 Elsevier Science Ltd. All rig
hts reserved.