Sell optical LiNbO3 crystal lens

Description

We manufacture LiNbO3 crystal lens professionally.
Basic Properties of optical LiNbO3 crystal lens as follow:
Crystal Structure:Trigonal, point group 3m
Lattice Parameters:a=b=5.**8 , c=*3.**3  
Density:4.*4 g/cm3 
Melting Point:***0 degrees
Curie Point:***2+/- degrees
Mohs Hardness:*5
Dielectric Constant :e*1/e0 = *5; e*3/e0 = *9.5
Thermal Conductivity:*8 W/m egrees at *5 egrees
Thermal Expansion Coefficient:a1=a2 =2x***6 egrees, a3=2.2x***6/ degrees at *5degrees
Piezoelectric Strain Constant:d*2 = 2.*4 x ****1 C/N, d*3 = *9.*2 x ****1 C/N
Elastic Stiffness Constant:CE*1 = 2.*4 x ***1 N/m2, CE*3 = 2.*6 x ***1 N/m2