LiTaO3

LiTaO3 is also a widely used E-O crystal, due to its optical, NLO and E-O properties similar to those of LiNbO3, but with a higher damage threshold.

 

 

Crystal Structure:

Trigonal , Space group R 3c , Point group 3m

Cell Parameters:

a = 5.154Å , c = 13.781Å

Melting Point:

1650°C
Curie Temperature:
607°C
Mohs Hardness:
5.5
Density:
7.46g/cm3
Dielectric Constant:

ε11o 51.7

ε33o 44.5
Elastic Stiffness Coefficient:

CE11 2.33 (x1011 N/m2)

CE33 2.77 (x1011 N/m2)
Piezoelectric Strain Constant:
D22 2.4 (x10-11C/N)
D33 0.8 (x10-11C/N)
Transmission Range:
400 – 4500nm
Electro-Optical Coefficients:
R33 = 30.4 pm/V
Refractive Index @ 632.8nm:
no = 2.176
ne = 2.180