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Fused Silica window/wafer

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Fused Silica optical window
Material	Fused Silica Quartz (SiO2) glass
Other Names	Fused Quartz window, Quartz glass window, Fused Silica wafer
Grade / Application band	JGS1 (VUV grade), Can be used in 180~2500nm wave band JGS2 (UV grade), Can be used in 220~2500nm wave band JGS3 (IR grade), Can be used in 700~3500 wave band
Refractive index	1.47012 at 4um
Specific heat	703 J/kg. ℃
Thermal conductivity	1.38 W/m. ℃
Thermal expansion coefficient	0.55 x 10E-6 /℃ at 300K
Moh's hardness	5.5 ~ 6.5
Compressive strength	1100 Mpa
Young's modulus	73.1 Gpa
Shear modulus of elasticity	31.2 Gpa
Apparent elastic limit	55 MPa(7980 psi)

Material	Standard Size	Surface quality
Fused Silica windows (VUV grade, JGS1) or (UV grade, JGS2) or (IR grade, JGS3)	φ25mm x 2.0mm φ25.4mm x 0.5mm φ50mm x 1.0mm φ50.8mm x 1.0mm φ100mm x 0.5mm φ100mm x 3.0mm 25 x 25 x 1.0mm 50 x 50 x 1.0mm 100 x 100 x 0.5mm Or others	Polishing: Double side optical polished Surface Finish: 60-40, 40-20, 20-10 (scratch-dig) Roughness: Ra<1.5nm or Ra<10nm or Ra<0.5nm Size Tolerance: +/-0.1mm Thickness Tolerance: +/-0.1mm or +/-0.05mm Parallelism: 3 minutes,1 minute, 30 seconds or higher Surface flatness: 1/2λ, 1/4λ or higher Chamfer: 0.25mm × 45°

Fused Silica Quartz glass window is smelted by high purity(>99.99%) of Quartz(SiO2) material, the Fused quartz glass can be used as precision optical elements in the industrial photoelectric field. Quartz glass window can work for a long time at a high temperature of 1200 °C, and is resistant to abrasion and acid and alkali (except HF).

The JGS1 of Fused Silica has high transmittance(>90%) in 180~2500nm wave band, it is used as VUV window.
The JGS2 of Fused Silica has high transmittance(>90%) in 220~2500nm wave band, it is used as UV window.
The JGS3 of Fused Silica has high transmittance(>90%) in 700~3500nm wave band, it is used as IR window.

We can customize different size and thickness of Fused Silica optical window upon requirements, such as Fused Silica round wafer, Square substrate and Cylinder, or Punch holes and other shapes.

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BIOTAIN CRYSTAL CO., LIMITED
Tel: (+86) 1506 0796 451
Fax: (+86) 0597 2212602
Email: sales@crystal-material.com
Work Time ( GMT +8 ):
9 AM ~ 6 PM, Monday to Friday
Main office: A7, No. 501, Denggaoxi Road, Xipi street, Xinluo District, Longyan, Fujian, China

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Fused Silica window/wafer

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