Name: 20mm Dia., 2mm Thick, NIR II Coated, Suprasil Window
SKU: 25-589
Price: €132,50

20mm Dia., 2mm Thick, NIR II Coated, Suprasil Window

Suprasil® Windows

Stock #25-589 New

- +

€132,50

Qty 1-5
€132,50

Qty 6+
€106,00

Volume Pricing
Request Quote

+ Add to Saved List

Compare

Get Product Downloads

Curve (xslx)

Curve (pdf) eDrawings: eprt IGES PDF Drawings STEP: step

Abbe Number (v_d):

67.8

Bevel:

Protective as needed

Clear Aperture (%):

Clear Aperture CA (mm):

18.00

Diameter (mm):

20.00 +0.00/-0.10

Thickness (mm):

2.00 ±0.10

Coating:

NIR II (750 - 1550nm)

Coating Specification:

R_abs ≤1.5% @ 750 - 800nm
R_abs ≤1.0% @ 800 - 1550nm
R_avg ≤0.7% @ 750 - 1550nm

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

0.51 (0 to +100°C)
0.58 (0 to +200°C)

Density (g/cm³):

2.20

Edges:

Fine Ground

Index of Refraction n_d:

1.459

Knoop Hardness (kg/mm²):

591

Parallelism (arcsec):

Poisson's Ratio:

0.17

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

Suprasil® 300

Surface Quality:

10-5

Transmitted Wavefront, P-V:

λ/10

Type:

Protective Window

Wavelength Range (nm):

750 - 1550

Young's Modulus (GPa):

Regulatory Compliance

RoHS:

Compliant

Certificate of Conformance:

View

Product Family Description

High Transmission from 200 to 3500nm
<1 ppm OH Content for Minimal Absorption Losses
10-5 Surface Quality and up to λ/10 TWD

Suprasil® Windows are constructed from high purity synthetic fused silica and provide high, flat transmission from 200 to 3500nm. Suprasil has similar mechanical properties to fused silica with the added benefit of having no absorption bands in the visible or infrared spectra, resulting in no transmission loss between 1400 - 2700nm. Compared to Infrasil®, Suprasil has lower absorption with a <1 ppm OH content, causing negligible increase in temperature from bulk absorption when used with high powered lasers. Suprasil Windows are ideal for laser material processing, medical laser applications, or applications using Nd:doped or 2 micron lasers.

Transmission of Suprasil 300 compared to Corning 7980

Title	Type	Stock Number	Price	Buy
8.0 - 118.0 Optic Height, English Bar-Type Optic Holder	Fixed	#03-666	€107,00 Qty 10+ €96,30 Request Quote	3-4 days ×
7.0 - 67.0 Optic Height, English Bar-Type Optic Holder	Fixed	#03-669	€103,00 Qty 10+ €92,70 Request Quote	3-4 days ×
7.0 - 40.0 Optic Height, English Bar-Type Optic Holder	Fixed	#03-676	€95,00 Qty 10+ €85,50 Request Quote	In Stock ×
5.0 - 25.0mm Optic Height, Metric Bar-Type Optic Holder	Fixed	#55-529	€93,00 Qty 10+ €83,70 Request Quote	3-4 days ×
10.0 - 60.0mm Optic Height, Metric Bar-Type Optic Holder	Fixed	#55-530	€101,00 Qty 10+ €90,90 Request Quote	Contact Us ×
20.0mm Optic Dia., Optic Mount	Fixed	#64-559	€31,00 Qty 10+ €27,90 Request Quote	3-4 days ×
4.0 - 36.0mm Optic Dia., Self-Centering Jaw Clamp	Fixed	#16-077	€141,00 Qty 5+ €124,10 Request Quote	3-4 days ×
5.0 - 100.0mm Optic Dia., Self-Centering Jaw Clamp	Fixed	#16-078	€367,00 Qty 5+ €323,70 Request Quote	3-4 days ×
2"/50.8mm Diameter, Bar Type Lens / Filter Holder, Quick Start Optical Mounts	Fixed	#17-530	€143,70 Request Quote	3-4 days ×