Bevel:

Protective as needed

Clear Aperture (%):

90.00

Clear Aperture CA (mm):

27.00

Diameter (mm):

30.00 +0.0/-0.1

Thickness (mm):

2.00 ±0.1

Coating:

BBAR (3000-5000nm)

Coating Specification:

R_avg <3.0% @ 3 - 5μm

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

2.55

Density (g/cm³):

2.33

Edges:

Fine Ground

Index of Refraction n_d:

3.422 @ 5µm

Knoop Hardness (kg/mm²):

1150

Parallelism (arcmin):

<3

Poisson's Ratio:

0.265

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

Silicon (Si)

Surface Flatness (P-V):

1λ

Surface Quality:

60-40

Type:

Protective Window

Wavelength Range (nm):

3000 - 5000

Young's Modulus (GPa):

140

30mm Dia. x 2.0mm Thickness 3-5µm Coated Silicon Window

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