4 Inch Dia Lithium Tantalate Trigonal LiTaO3 Crystal Wafers For E-O Devices
Lithium Tantalate LiTaO3 Crystal Wafers Dia 4inch
LiTaO3 is an E-O crystal widely used for E-O devices, due to its good optical NLO and E-O properties, as well as high damage threshold. Crystro supplies high quality LiTaO3 boules and wafers with the following specifications for standard applications. We can also offer other specifications upon request.
Crystro's LiTaO3 lithium tantalate crystal has >99.99% purity. Find high-quality lithium tantalate bulk crystals, wafers and substrates
Max diameter reach 4inch,it's now the biggest size in this filed,we can custom size and specs ,rougness<0.5nm.
Crystro provides:
- Excellent photoelectric property
- High Damage Threshold
- High Curie Temperature
Basic Properties of LiTaO3:
| 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 | 7.46g/cm3 |
| Dielectric Constants | ε11/ε0:51.7 |
| ε33/ε0:44.5 | |
| Elastic Stiffness Coefficients | CE11:2.33(×1011N/m2) |
| CE33:2.77(×1011N/m2) | |
| Piezoelectric Strain Constants | d22:2.4(×10-11C/N) |
| d33:0.8(×10-11C/N) | |
| Transmission range | 400-4500nm |
| Electro-optical coefficients | r33=30.4pm/V |
| Refractive index at 632.8nm | no=2.176,ne=2.180 |
Typical Specifications:
| Type | Boule | Wafer | ||
| Specifications | ||||
| Diameter | Φ3″ | Φ3″ | Φ4″ | |
| Length or Thickness | ≤100mm | ≤50mm | 0.35-0.5mm | |
| Orientation | 127.86°Y,64°Y,135°Y,X,Y,Z,and other cut | |||
| Ref. Flat Orientation | X,Y | |||
| Ref. Flat Length | 22±2mm | 2mm | 22±2mm | 32±2mm |
| Front Side Polishing | Mirror polished 5-15Å | |||
| Back Side Lapping | 0.3-1.0μm | |||
| Flatness(μm) | ≤15 | |||
| Bow(μm) | ≤25 | |||
Crystal orientations available: Z-cut, X-cut, Y-cut
Typical product sizes available
Bulk crystals:
up to 4 inch diameter and 50 mm thick
Crystal substrates / wafers (single side or double side polished)
10 x 10 x 0.5 mm
2 inch diameter x 0.5mm thick
4 inch diameter x 0.5mm thick
Note: Other sizes and coatings are available upon request.
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