Optical grade single crystal LiTaO3
Orientation:   Z-cut ( +/- 0.5 degree )
Size:            10mm x 10mm x 0.5mm
Polish:           two sides polished
Surface roughness: < 10 A by AFM in 5 micron area

Typical Properties 

Materials Purity:               > 99.995%

Crystal Structure:             Rhombohedral    space group 3M

Lattice Constant:              ( Hex ) a = 5.154 Å              c = 13.783 Å

Melting Point:                   1650 ^oC

Density:                          7.45 g /cm³

Curie Point:                      610 ^oC

Hardness:                        5.5 - 6 Moh

Thermal Expansion:           a _a= 16.1 x 10 ^-6 / k              a _c= 4.1 x 10 ^-6 / k

Resistivity:                      10¹⁵ W.m               

Dielectric Constant:          e^s₁₁ / e_0:  39 ~43                  e^s₃₃ / e_0:  42 ~43

                                     e^t₁₁ / e_0:  51 ~54                  e^t₁₁ / e_0:  43 ~46

Color:                             colorless

Transmission Range:          0.4~5.0 mm

Refractive Index:              h_o = 2.176  h_e = 2.180 @ 633 nm