Large quadratic electro-optic properties of ferroelectric base 0.92Pb(Mg1/3Nb2/3)O3–0.08PbTiO3 single crystal

Large Kerr effect in 0.92Pb(Mg1/3Nb2/3)O3–0.08PbTiO3 (PMN–0.08PT) single crystal has been observed. The effective quadric electro-optical coefficient (R11 − R12) of PMN–0.08PT single crystal is measured by a Senarmont compensator method. The refractive indices and extinction coefficient of PMN–0.08PT single crystal ranging from 300 to 1700 nm have been measured by variable angle spectroscopic ellipsometry (VASE). The transmission character of PMN–0.08PT single crystal in the range of 300–2200 nm has been investigated by UV–visible–NIR spectrometer. The transmission ratio is 65% in the range of 600–2100 nm and the calculated reflection loss is about 20%. The effective quadric electro-optical coefficient (R11 − R12) is calculated to be 8.19 × 10−16 m2 V−2 and the n3(R11 − R12) is 141.8 × 10−16 m2 V−2 at 514.5 nm, respectively. The Vπ of the sample is 632 V.