Directional

[100] or [100] <± 0.5^。

Parallelity

10〞

Perpendicularity

5ˊ

Surface Finish

5-Oct

Wavefront Distortion

<­λ/8@632 nm

Surface Flatness

<λ/10@632.8nm

Clear Aperture

>90%

Chamfer

0.1mm@45°

Thickness/Diameter Tolerance

±0.05 mm

Size

Diameter:2mm-50mm,Length:5mm-180mm

Coating

< 0.25% @ 2940 nm

Crystal Structure

Cubic–la3d

Lattice Constant

12.01 Å

Density

4.56 g/cm³

Melting Point

1950℃

Thermal Conductivity/(W·m^-1·K^-1 @ 25℃)

0.14 W

Specific Heat/(J·g^-1·K^-1)

0.59

Thermal expansion/(10^-6·K^-1 @ 25℃)

[100] orientation–8.2

[110] orientation–7.7

[111] orientation–7.8

Hardness (Mohs)

8.5

Yang’s Modulus/ GPa

317

Shear Modulus / Gpa

54.66

Extinction Ratio

25 dB

Poisson Ratio

0.25

Cr, Er YAG laser spectrum