LGS Crystal (Lanthanum Gallium Silicate) is a kind of multifunctional crystal, which can be used as electro-optic crystal. Stanford Optics is a trusted supplier and manufacturer of Optical products.
Point group |
32 |
Space group |
P32I |
Resistivity |
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 |
Coefficient of thermal expansion |
aa=16×10-6/K, ac=4×10-6/K |
Optical damage threshold |
670MV/cm2 |
Crystal cell parameters |
a=b=0.8162nm,c=0.5087nm |
Dielectric constant |
ε11=18.27 |
ε33=55.26 |
|
Electro-optic coefficient |
γ11=2.3×10-12m/V |
γ33=1.8×10-12m/V |
|
Piezoelectric strain constant(10-12)C / N |
d11=6.3 |
d14=-5.4 |
|
Phase velocity m / s |
2750~2850 |
Electromechanical coupling coefficient K [%] |
0.28~0.46 |
Coefficient of thermal expansion |
α11=5.15×10-6K-1 |
α33=3.65×10-6K-1 |
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