LiTaO3 LT
LiTaO3 crystal belongs to 3m crystal system. The transverse electro-optic modulation of the crystal can be used to measure the electric field. LiTaO3 has excellent electro-optic properties, it has higher electro-optic coefficient than LiNbO3, higher optical damage threshold, lower birefringence, wide transmission band, and high light transmittance. The crystals produced by different crystal growth methods have different optical damage thresholds, the LiTaO3 crystal prepared by top-seeded solution method is one order of magnitude higher than that of the same component crystal. As an electro-optical crystal for measuring an electric field, LiTaO3 is widely used because of its large electro-optic coefficient, which makes it highly sensitive in measurement ,and the wafer fabrication cost is low.
Parameter
| Point group | C3v-3m |
| Refractive index at 632.8nm | n0=2.176 |
| ne=2.186 | |
| Transparent Range | 0.4-5.0μm |
| Orientation | X,Z,36°Y,42°Y,128°Y |
| Melting point | 1650℃ |
| Density | 7.45g/cm3 |
| Mohs hardness | 5.5 |
| Thermal expansion coefficient | aa=16×10-6/K, ac=4×10-6/K |
| Specific heat | 0.06J/(kg•°C) |
| Cell Parameters | a=5.154Å,c=13.781Å |
| Curie Temperature | 605℃ |
| Elastic Stiffness Coefficient | CE11=2.33(×1011N/m2) |
| CE33=2.77(×1011N/m2) | |
| Electro-optical coefficients@0.63μm | γS13=7×10-12m/V |
| γS33=30.3×10-12m/V | |
| Heat Capacity (Cp) | 100 J / k.mol |
Electro-Optic Coefficients r(10-12 mV-1) at 632.8 nm
| rT13 | 8.4 | rS13 | 7 |
| rT22 | – | rS22 | 1 |
| rT33 | 30.5 | rS33 | 30.3 |
| rT51 | – | rS51 | 20 |
Nonlinear Optical Coefficients at 1-06 μ m (*d31=d15)
| d22 / l d36KDP l | 4.4 |
| d31 / l d36KDP l | -2.7 |
| d33 / l d36KDP l | -4.1 |
Refractive Index at 632.8 nm
| no | 2.1787 |
| ne | 2.1821 |
| no: TE mode ne: TM mode | |
Surface Acoustic Wave Properties
| Description | Propagation | Design | Surface Wave Velocity (m/s) | Coupling Coefficient k² (%) | Group Delay Time Temp Coefficient (ppm/°C) |
| 36 ° Y – Cut | X – Axis | SSBW | 4160 | 5 | 28 ~ 32 |
| 42° Y – Cut | X – Axis | SSBW | 4022 | 7.6 | 40 |
| X – Cut | 112.2 Y Direction | SAW | 3290 | 0.75 | 18 |
| SAW = Surface Acoustic Wave L, SAW =Leaky SAW | |||||
Selective Piezoelectric Coupling Factors & Frequency Constants
| Plate Orientation | Wave Type | Coupling Factor | Resonance Frequency Constant (MHz-mm) |
| X | S | 0.44 | 1.906 |
| Z | E | 0.19 | 3.04 |
| 36° Y – Cut | QE | – | – |
| 163° Y – Cut | QS | – | – |
| E = extensional S = shear QE = quasi – extensional QS = quasi – shear | |||
| Elastic stiffness coefficient cij/(1010N/m2) | c11 | c12 | c13 | c14 | c33 | c44 |
| 22.8 | 3.1 | 7.4 | -1.2 | 27.1 | 9.6 | |
| piezoelectric strain constant dij/(10-11C/N) | d15 | d22 | d31 | d33 | ||
| 2.6 | 0.85 | -0.3 | 0.92 | |||
| dielectric constant | εT11/ε0 | εT11/ε0 | ||||
| 53 | 44 | |||||
| Electromechanical coupling coefficient kij(%) | k15 | k31 | ||||
| 50 | 50 |
- Large electro-optic coefficient
- Not easy to deliquesce
- High sensitive
- wide transparency range
- high optical damage threshold
- Stable chemical and physical properties
Electro-Optic Deflector
- Optical storage
- High speed holographic camera
- The transient record
| A high sensitive SH-SAW biosensor based 36° Y-X black LiTaO3 for label-free detection of Pseudomonas Aeruginosa Sensors & Actuators: B. Chemical 281 (2019) 757–764 |
| Pressure dependence of X-rays produced by an LiTaO3 single crystal at the pressures of 1–20 Pa Applied Radiation and Isotopes 116 (2016) 134–137 |
| Study on grinding of LiTaO3 wafer using effective cooling and electrolyte solution Precision Engineering 44 (2016) 62–69 |
| The diffusion coefficient of lithium tantalite (LiTaO3) with temperature variations on LAPAN-IPB satellite infra-red sensor Procedia Environmental Sciences 33 ( 2016 ) 668 – 673 |
If you can’t find the Literature you want, Contact us to get the PDF Get the Literature
| Two-photon absorption in undoped LiTaO3 crystals Optical Materials 78 (2018) 253-258 |
| Femtosecond supercontinuum generation and Cerenkov conical emission in periodically poled LiTaO3 Optik 156 (2018) 333–337 |
| Intense piezoluminescence in LiTaO3 phosphors doped with Pr3+ ions Ceramics International |
| Er3+ diffusion in LiTaO3 crystal Applied Surface Science, Volume 357, Part A, 1 December 2015, Pages 1097-1103 |
| Phasor diagrams of thin film of LiTaO3 as applied infrared sensors on satellite of LAPAN-IPB Procedia Environmental Sciences 33 ( 2016 ) 615 – 619 |
| Application of LiTaO3 pyroelectric crystal for pulsed neutron detection Nuclear Instruments and Methods in Physics Research A 827 (2016) 161–164 |
| Surface modification of single crystal LiTaO3 by H and He implantation Nuclear Instruments and Methods in Physics Research B 392 (2017) 62–66 |
| Pressure dependence of X-rays produced by an LiTaO3 single crystal over a wide range of pressure Applied Radiation and Isotopes 135 (2018) 40–42 |
| LiTaO3 based metamaterial perfect absorber for terahertz spectrum Superlattices and Microstructures 111 (2017) 754e759 |
| Evolution of optical absorption and strain in LiTaO3 crystal implanted by energetic He-ion Nuclear Instruments and Methods in Physics Research B 354 (2015) 301–304 |
| Atomistic origins of the differences in anisotropic fracture behaviour of LiTaO3 and LiNbO3 single crystals Acta Materialia 150 (2018) 373e380 |
| LOCALIZED VIRRATION IN PROTON-EXCHANGED LiNBO3 AND LiTaO3 CRYSTALS Solid State Communications, Vol. Y3, No. 2, pp.131-134, lYY5 |
| LiTaO3/Silicon composite wafers for the fabrication of low loss low TCF high coupling resonators for filter applications Physics Procedia 70 ( 2015 ) 1007 – 1011 |
| Study of the effect of H implantation and annealing on LiTaO3 surface blistering Nuclear Instruments and Methods in Physics Research B 342 (2015) 76–81 |
| Optical waveguides in LiTaO3 crystals fabricated by swift C5+ ion irradiation Nuclear Instruments and Methods in Physics Research B 325 (2014) 43–46 |
| Non-1808 domains formation mechanism in LiTaO3 grains of an Al2O3/LiTaO3 composite Ceramics International 35 (2009) 949–952 |
| The energy loss effects on the absorption edge of LiTaO3 irradiated by energetic heavy ions Nuclear Instruments and Methods in Physics Research B 307 (2013) 526–530 |
