Name: 40mm Dia., 4mm Thick, VIS-NIR Coated λ/10 Fused Silica Window
Brand: TECHSPEC
SKU: 84-457
Price: ₹18,275.00

Abbe Number (v_d):

67.8

Bevel:

Protective as needed

Clear Aperture (%):

Clear Aperture CA (mm):

32.00

Diameter (mm):

40.00 +0.00/-0.20

Thickness (mm):

4.00 ±0.10

Coating:

VIS-NIR (400-1000nm)

Coating Specification:

R_abs ≤0.25% @ 880nm
R_avg ≤1.25% @ 400 - 870nm
R_avg ≤1.25% @ 890 - 1000nm

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

Edges:

Fine Ground

Index of Refraction n_d:

1.458

Knoop Hardness (kg/mm²):

522

Parallelism (arcsec):

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/10

Type:

Protective Window

Typical Energy Density Limit:

5 J/cm² @ 532nm, 10ns

Wavelength Range (nm):

400 - 1000

Young's Modulus (GPa):

Type of Window:

Glass

5 J/cm² @ 532nm, 10ns

Regulatory Compliance

RoHS 2015:

Compliant

Reach 224:

Compliant

Certificate of Conformance:

View

Product Family Description

UV, Visible, and NIR Anti-Reflection Coated Versions Available
λ/10 Transmitted Wavefront Distortion
Sizes Ranging from 5 - 150mm Diameters
1λ or λ/4 UV Fused Silica Windows Also Available

Our precision TECHSPEC® λ/10 UV Fused Silica Windows feature laser-grade surface quality and parallelism. In addition, these windows will limit the transmitted wavefront distortion to λ/10. Available uncoated, or with anti-reflection coatings optimized for the UV or visible spectrum, the superior transmission characteristics and excellent thermal properties combined with high tolerance manufacturing specifications make these windows an excellent choice for more demanding applications.

UV FS Transmission Curve

Title	Type	Stock Number	Price	Buy
8.0 - 118.0 Optic Height, English Bar-Type Optic Holder	Fixed	#03-666	₹9,095.00 Qty 10+ ₹8,186.00 Request Quote	10 to 12 days ×
7.0 - 67.0 Optic Height, English Bar-Type Optic Holder	Fixed	#03-669	₹8,755.00 Qty 10+ ₹7,880.00 Request Quote	10 to 12 days ×
19.5 - 108.0mm Optic Dia., Three-Screw Adjustable Ring Mount	Fixed	#03-670	₹8,585.00 Qty 10+ ₹7,582.00 Request Quote	10 to 12 days ×
7.0 - 40.0 Optic Height, English Bar-Type Optic Holder	Fixed	#03-676	₹8,075.00 Qty 10+ ₹7,268.00 Request Quote	10 to 12 days ×
9.5 - 73.0mm Optic Dia., Three-Screw Adjustable Ring Mount	Fixed	#36-605	₹6,290.00 Qty 10+ ₹5,559.00 Request Quote	10 to 12 days ×
10.0 - 60.0mm Optic Height, Metric Bar-Type Optic Holder	Fixed	#55-530	₹8,585.00 Qty 10+ ₹7,727.00 Request Quote	Contact Us ×
40.0mm Optic Dia., Optic Mount	Fixed	#64-566	₹3,230.00 Qty 10+ ₹2,907.00 Request Quote	10 to 12 days ×
5.0 - 100.0mm Optic Dia., Self-Centering Jaw Clamp	Fixed	#16-078	₹31,195.00 Qty 5+ ₹27,515.00 Request Quote	10 to 12 days ×
2"/50.8mm Diameter, Bar Type Lens / Filter Holder, Quick Start Optical Mounts	Fixed	#17-530	₹12,215.00 Request Quote	10 to 12 days ×