Optical LiTaO₃ Lithium Tantalate Crystal Lens - 3" & 4" Diameter, 400-4500nm Transmission Range for Electro-Optic Devices
LiTaO₃ (Lithium Tantalate) is an electro-optic crystal widely used in optical instruments due to its excellent nonlinear optical and electro-optic properties, combined with high damage threshold capabilities. Our high-quality LiTaO₃ boules and wafers meet standard specifications while offering custom options upon request.
- Nonlinear optics and electro-optic devices
- Passive infrared sensors and motion detectors
- Terahertz generation and detection systems
- Surface acoustic wave applications
- Mobile communication devices
- Pyroelectric nuclear fusion research
| Property | Value |
|---|---|
| Crystal Structure | Trigonal, Space group R3c, Point group 3m |
| Cell Parameters | a=5.154Å, c=13.781Å |
| Melting Point | 1650℃ |
| Curie Temperature | 607℃ |
| Mohs Hardness | 5.5 |
| Density | 7.46 g/cm³ |
| Transmission Range | 400-4500 nm |
| Electro-optical Coefficients | r33=30.4 pm/V |
| Refractive Index at 632.8 nm | no=2.176, ne=2.180 |
| Specification | Boule | Wafer |
|---|---|---|
| Diameter | Φ3" / Φ4" | Φ3" / Φ4" |
| Length/Thickness | ≤100 mm / ≤50 mm | 0.35-0.5 mm |
| Orientation | 127.86°Y, 64°Y, 135°Y, X, Y, Z, and other cuts | |
| Ref.Flat Orientation | X, Y | |
| Ref.Flat Length | 22±2 mm / 32±2 mm | 22±2 mm / 32±2 mm |
| Front Side Polishing | / | Mirror polished 5-15 Å |
| Back Side Lapping | / | 0.3-1.0 μm |
| Flatness | / | ≤15 μm |
| Bow | / | ≤25 μm |
We provide custom size and specification wafers tailored to your specific application requirements. Our technical team works closely with clients to deliver optimal solutions for advanced optical systems.
Our company actively participates in major international exhibitions including Laser World of Photonics Munich, Photonics West in San Francisco, and CIOE in Shenzhen, demonstrating our commitment to innovation and industry leadership.
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Have questions about our products or want to discuss a custom order? Our team is ready to help you.