LiTaO3
Keywords:
LiTaO3
Category:
- Details
- Characteristics
- Parameters
- Application
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- Commodity name: LiTaO3
Lithium tantalate is an important multifunctional crystal material. This crystal exhibits excellent piezoelectric, ferroelectric, acousto-optic, and electro-optic effects, and is a basic functional material in SAW devices, optical communication, lasers, and optoelectronics. LT lenses are widely used in the manufacturing of electronic communication devices such as resonators, filters, and transducers, especially for its good electromechanical coupling, temperature coefficient, and other comprehensive performance, it is used to manufacture high-frequency surface acoustic wave devices, and is applied in many high-end communication fields such as mobile phones, walkie-talkies, satellite communication, and aerospace.
Lithium tantalate is an important multifunctional crystal material with excellent piezoelectric, ferroelectric, acousto-optic, and electro-optic effects. It is a fundamental functional material in surface acoustic wave (SAW) devices, optical communication, lasers, and optoelectronics.
Main Features ：
Curie temperature: 603±2℃
Stable chemical and physical properties
Typical applications:
Surface acoustic wave filters, resonators, Q-switches, optical modulators, acousto-optic switches, laser frequency doublers, optical parametric oscillators, optical storage devices, etc.
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Crystal structure
Trigonal
Lattice constant
a=5.154Å,c=13.783Å
Density
7.45g/cm3
Melting point
1650℃
Curie temperature
603±2℃
Mohs hardness
5.5~6.0
Relative dielectric constant
ε 11 =53.6
ε 33 =53.6
Thermal expansion coefficient
α 11 =16.1×10 -6 /K
α 33 =4.1×10 -6 /K
Refractive index
n o =2.176,n e =2.180 @ 633mn
Pyroelectric coefficient
23×10 -5 C/cm2/K
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Dielectric constant
es 11/e o :39~43,es 33/e o :42~43,et 11/e o :51~54,et 33/e o :43~46
Resistivity
1015Ω·m
Electro-optic coefficient
R 33 =30.4
Transmission range
400nm~5000nm
Related Products
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