Bevel:

Protective as needed

Clear Aperture CA (mm):

11.00

Coating:

Uncoated

Diameter (mm):

12.70 +0.00/-0.10

Thickness (mm):

3.18 ±0.20

Parallelism (arcmin):

<3

Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More

Sapphire (Al₂O₃)

Surface Quality:

10-5

Transmitted Wavefront, P-V:

λ/10 over Clear Aperture

Type:

Protective Window

Wavelength Range (nm):

200 - 5500

Birefringence (n_o-n_e):

0

Axis Orientation:

C-axis

Young's Modulus (GPa):

435

Coefficient of Thermal Expansion CTE (10^-6/°C):

8.8

Density (g/cm³):

3.97

Index of Refraction n_d:

1.77

Poisson's Ratio:

0.27

Abbe Number (v_d):

72.24

Edges:

Fine Ground

12.7mm Dia., 3.18mm Thick, Uncoated, Laser Grade C-Axis Sapphire Window

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