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| Material: | 3X3X20mm AR 1064nm Piezoelectric Materials La3Ga5SiO14 Single Crystal (LGS) | Diameter: | 3X3X20mm |
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| Type: | Crystal Bar | Coating: | AR 1064nm，custom |
| Growth Method: | Czochralski | Melting Point: | 1470℃ |
| Origin: | China | After-sales Service: | Video Technical Support, Online Support |
| High Light: | AR 1064nm Piezoelectric Effect Crystals,Langasite Piezoelectric Effect Crystals,AR 1064nm Langasite Crystals |
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3X3X20mm AR 1064nm Piezoelectric Materials La3Ga5SiO14 single crystal (LGS)
Langasite crystal (La3Ga5SiO14,LGS), belonging to the space group P321, point group 32, has been reported to be promising new piezoelectric materials for fabrication of surface acoustic wave (SAW) and bulk acoustic wave (BAW) devices. The devices made of langasite crystal could be used at a high temperature up to 900℃ because of its high thermal stability.
a.Crystro's LGS crystal has High thermal stability,low equivalent series resistance ratio and electro-mechanical coupling coefficient is 3-4 times than quartz.
Main Properties:
| Point group | 32 |
| Airborne group | P32I |
| specific resistance | 4.0×1012Ω/cm-1 |
| Thickness | 0.13-0.5mm |
| Diameter | 50mm |
| Length | 90-100mm |
| Melting point | 1470℃ |
| Density | 5.67g/cm3 |
| Mohs hardness | 5.5 |
| Thermal expansion coefficient | aa=16×10-6/K, ac=4×10-6/K |
| Photo damage threshold | 670MV/cm2 |
| Cell Parameters | a=b=0.8162nm,c=0.5087nm |
| Dielectric constant | ε11=18.27 |
| ε33=55.26 | |
| Electro-optical coefficients | γ11=2.3×10-12m/V |
| γ33=1.8×10-12m/V | |
| Piezoelectric strain constant | d11=6.3 |
| (10-12)C/N | d14=-5.4 |
| Phase velocity,m/s | 2750～2850 |
| Electromechanical coupling coefficient, K[ %] | 0.28～0.46 |
| Solubility | None |
| Coefficient of thermal expansion | α11=5.15×10-6K-1 |
α33=3.65×10-6K-1 |
Features:
High damage threshold
Good optical rotation
Can withstand high and low temperature changes
Stable physical and chemical properties
High electromechanical coupling coefficient (3 times of quartz)
Low equivalent series resistance
Applications:
electro-optic Q-switch
SAW device
BAW device
Sensor
High power high repetition rate all solid state laser
High and low temperature change laser
DOCUMENT:
LGS Cryatal.pdf
Contact Person: Ms. Wu
Tel: 86-18405657612
Fax: 86-0551-63840588
