Terbium gallium garnet (TGG) crystal

Molecular Formula

Tb3Ga5O12

Lattice constants:

Cube，a=12.355Å

Growth method

Czochralski

Density:

7.13g/cm3

Mohs hardness:

8.0

Melting point:

1725℃

Refractive index

1.954 @1064nm

Thermal conductivity:

9.4*10-6  /K

Vedder constant

0.12min/Oe.cm at 1064nm

Crystal Standard Specifications:

Directional accuracy:

〔111〕± 5 °

Wavefront distortion:

<λ/8 wave total @633nm

Extinction ratio:

A:>30dB，B:>28dB

Dimensional tolerances:

Diameter:

±0.1mm

Length

±0.05mm

Chamfer:

0.2mm at 45°

Other parameters:

Flatness:

<λ/10 wave at 633nm

Through Glossy Parallelism:

<1

Verticality:

<5

Surface finish:

10/5 per MIL-O13830A