banner
EO crystal
optical crystal
Lithium tantalate (LiTaO₃) is an electro-optic crystal with excellent performance, which is widely applied in various electro-optic devices. It has good optical, nonlinear optical, electro-optic (E-O) properties and a high damage threshold. We provide you with high-quality LiTaO₃ crystals and wafers. The following table shows the properties of LiTaO₃ crystals for standard applications. Baijing Optoelectronics can customize crystals of other specifications according to customers' requirements.
Crystal Structure | Trigonal, space group R3c, Point group 3m |
Lattice Parameters | a = 5.154 Å, c = 13.781 Å |
Melting Point | 1650℃ |
Curie Temperature | 607℃ |
Mohs Hardness | 5.5 |
Density | 7.46 g/cm³ |
Dielectric Constant | ξ11/ξ0 = 51.7 ξ33/ξ0 = 44.5 |
Elastic Stiffness Coefficient | CE11 = 2.33(× 10¹¹ N/m²) CE33 = 2.77(× 10¹¹ N/m²) |
Piezoelectric Strain Constant | d₂₂ = 2.4(× 10⁻¹¹ C/N) d₃₃ = 0.8(× 10⁻¹¹ C/N) |
Emission Range | 400 - 4500 nm |
Electro-Optic Coefficient | r = 30.4 × 10⁻¹² m/V |
Refractive Index (at 632.8 nm) | nₒ = 2.176, nₑ = 2.180 |