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12.7mm Dia., 2mm Thick, Uncoated, ISP Optics Quartz Window | Q-W-12-2

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Product Details

Type:
Protective Window
Model Number:
Q-W-12-2

Physical & Mechanical Properties

Bevel:
Protective as needed
Clear Aperture (%):
85
Clear Aperture CA (mm):
10.79
Diameter (mm):
12.70 +0.00/-0.13
Thickness (mm):
2.00 ±0.13
Edges:
Fine Ground
Knoop Hardness (kg/mm2):
522
Parallelism (arcmin):
<3
Poisson's Ratio:
0.16
Young's Modulus (GPa):
73

Optical Properties

Abbe Number (vd):
67.8
Coating:
Uncoated
Index of Refraction nd:
1.458
Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More
Quartz
Surface Flatness (P-V):
1λ per inch @ 633nm
Surface Quality:
40-20
Wavelength Range (nm):
190 - 3500

Material Properties

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

Regulatory Compliance

RoHS 2015:
Compliant
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Certificate of Conformance:
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Reach 240:
Compliant
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Product Family Description

  • High Transmission from 190 - 3500nm
  • High Chemical Resistance
  • Low Coefficient of Thermal Expansion

ISP Optics Quartz Windows feature crystalline quartz (SiO2) substrates, providing high transmission from the UV to the MWIR. Unlike fused silica, crystalline quartz does not have hydroxide ion impurities, allowing for its use between 1.4 - 2.7µm with no dips in transmission. The material also has high chemical resistance, a low coefficient of thermal expansion, and relatively high hardness, making these windows advantageous for use in harsh environments or those with fluctuating temperatures. ISP Optics Quartz Windows are ideal for use in UV, visible, or infrared applications as protective windows to protect sensors, lasers, or other electro-optical components.