Name: 50.8mm Dia., 950 - 1150nm BBAR Coated, Ultrafast Thin Window
Brand: TECHSPEC
SKU: 11-742
Price: €272,00

Abbe Number (v_d):

67.8

Bevel:

Protective as needed

Clear Aperture (%):

Diameter (mm):

50.80 +0.00/-0.10

Thickness (mm):

1.00 ±0.10

Coating:

BBAR (950-1150nm)

Coating Specification:

R_abs <0.15% @ 950 - 1150nm

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

0.52 (+5 to +35°C)
0.57 (0 to +200°C)
0.48 (-100 to +200°C)

Density (g/cm³):

2.20

Design Wavelength DWL (nm):

1030

Edges:

Fine Ground

Index of Refraction n_d:

1.458

Knoop Hardness (kg/mm²):

522

Parallelism (arcsec):

≤30

Poisson's Ratio:

0.16

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

Fused Silica (Corning 7980)

Surface Quality:

20-10

Transmitted Wavefront, P-V:

≤λ/6

Type:

Ultrafast Window

Wavelength Range (nm):

950 - 1150

Young's Modulus (GPa):

Damage Threshold, Pulsed:

1 J/cm² @ 1030 nm, 500 fs FWHM, 1 pulse
0.9 J/cm² @ 1030 nm, 500 fs FWHM, 100 Hz, 1,000 pulses

Type of Window:

Glass

10 J/cm² @ 532nm, 20ns, 20Hz

Regulatory Compliance

RoHS 2015:

Compliant

Reach 219:

Compliant

Certificate of Conformance:

View

Product Family Description

1mm Thickness for Limited GDD
Low Loss Broadband IBS Anti-Reflection Coating
Designs for Wavelengths from 370nm to 2200nm
Coating GDD of ±30fs²
UV or IR Grade Fused Silica Substrates

TECHSPEC® Ultrafast Thin Windows are designed with a 1mm thickness to have limited group delay dispersion (GDD), making them ideal for ultrafast laser applications. These thin windows are available coated on both surfaces with an ion-beam sputtered (IBS) broadband antireflection coating optimized to provide low reflectance at wavelength ranges between 370nm to 2.2μm. The IBS coating process also provides these windows with lower absorption losses and scatter than conventionally coated anti-reflection windows. TECHSPEC Ultrafast Thin Windows can also be used in general optical applications that require high-performance optical windows with a small form factor. Uncoated Thin Window substrates (UV Fused Silica or IR Grade Fused Silica) are available to offer the flexibility of custom coatings to meet your application requirements, please contact us for more information.

IR grade fused silica differs from UV grade fused silica by its reduced amount of OH- ions, resulting in higher transmission throughout the NIR spectrum and reduction of transmission in the UV spectrum.

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