Polarized LT Wafer Litao3 Substrate Application For SAW Devices
Lithium Tantalate (LT, LiTaO3) has unique properties, which as a
material finds uses in Electro-Optical and Acousto-Optical
applications. These can be : surface acoustic wave devices, bulk
acoustic wave devices, piezo-electric transducers and piezoelectric
sensors.The 36° and 42 ° cuts of Lithium Tantalate have shown
widespread adoption for the telecommunications mobile phone handset
market at frequencies from 800 to 2100 MHz. These orientations show
an optimized bandwidth / insertion loss trade off in performance
and are dominating the ever expanding mobile handset sales.
Crystro's LiTaO3 lithium tantalate crystal has >99.99% purity. Find
high-quality lithium tantalate bulk crystals, wafers and substrates
Anhui Crystro participate in the kinds exhibitions every year:
Laser World of Photonics Munich, Shanghai, Photonics West in San
Francisco, CIOE in Shenzhen, etc.
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:
Crystal orientations available: Z-cut, X-cut, Y-cut
Typical product sizes available
Bulk crystals:
up to 4 inch diameter and 25 mm thick
Crystal substrates / wafers (single side or double side polished)
10 x 10 x 0.5 mm
2 inch diameter x 0.25mm thick
4 inch diameter x 0.25mm thick
Crystro can offer other size and specification of wafers upon
request.
