| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1786785 | Current Applied Physics | 2013 | 4 Pages |
Single crystal paraelectric K0.99Li0.01Ta0.60Nb0.40O3 is grown with a room-temperature Curie temperature (Tc). The parameters of the Sellmeier dispersion equation were determined. A large quadratic electro-optic (QEO) effect was observed. The QEO coefficient R11 reaches as high as 2.48 × 10−15 m2 V−2 around Tc. The induced refractive index change under an electric field of 500 V/mm is 40 times bigger than that of commonly used LiNbO3. The large QEO coefficient makes single crystal K0.99Li0.01Ta0.60Nb0.40O3 a promising candidate in optical devices.
► High quality paraelectric K0.99Li0.01Ta0.60Nb0.40O3 single crystal was grown. ► Sellmeier dispersion equation of the crystal was obtained. ► Large quadratic electro-optic effect was observed near Curie temperature. ► Quadratic electro-optic coefficient R11 reaches ∼10−15 V2 m−2.
