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■Fused Silica
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Specification of fused silica
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Type
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JGS1
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JGS2
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JGS3
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Grade
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Ultraviolet grade
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Optical grade
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Full spectrum grade
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Transmission
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165-2500 nm
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230-2500 nm
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175-3500 nm
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OH-Content
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1200 ppm
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150 ppm
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5 ppm
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Impurity Constant
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5 ppm
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20 – 40 ppm
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40 – 50 ppm
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Surface Finished
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Double side polished
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Roughness
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0.5nm
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Size
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10mm-120mm
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Thickness
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0.5mm or 1mm
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Typical applications
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Deep UV and visible wavelength range; laser lenses, windows, prisms, mirrors
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High temperature and pressure applications, optical flats, microscope slides and sight glass
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IR & UV substrate applications
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※ Optical properties:
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■Single Crystalline Quartz
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※ Specification
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Specification of Single Crystalline Quartz
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Purity Wt %
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99.99%
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Crystal Structure
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Hex. a= 4.914 Å c = 5.405 Å
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Growth Method
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Hydrothermal
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Hardness
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7.0 Moh’s
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Density
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2.684 g/cm3
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Melt Point
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1610℃ ( phase transition point: 573.1℃)
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Orientation
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X,Y or Z cut
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Surface finished
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Double side polished
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RMS roughness
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0.5nm
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Size
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10mm-100mm
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Standard Thickness
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0.5mm or 1mm
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■Magnesium Oxide (MgO)
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| ※ Specification |
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Standard Specifications of MgO
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Crystal Structure
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Cubic m3m NaCl type
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Cell parameter
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a= 4.213 Å
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Melting point
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3250 °K
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Density
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3.58g/cm3
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Standard size
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2”x 2”, 1” x 1”, Ф2”, 20m x 20mm, 10mm x 10mm, 10mm x 5mm, customer design
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Standard Thickness
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0.5mm, 1.0mm
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Thickness tolerance
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±0.02mm or ±0.005mm for special order
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Polish
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SSP (one side) or DSP (two sides)
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Orientation
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<100> <110> <111>
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Orientation accuracy
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± 0.5°
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RMS roughness
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≤10 Å
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■Single Crystal ZnO
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| ※ Specification |
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Standard Specifications of ZnO
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Purity wt%
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99.99%
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Crystal Structure
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Hexagonal: a= 3.252 Å , c = 5.313 Å
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Growth Method
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Hydrothermal
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Melting point
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1975℃
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Density
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5.7 g/cm3
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Standard size
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5mm x 5mm, 10mm x 10mm, 20mm x 20mm
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Standard Thickness
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0.35mm, 0.5mm and 1.0mm
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Surface Finished
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One side polished or double side polished
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Orientation
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<0001>, <11-20>, <10-10>
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RMS roughness
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Ra < 10 Å
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■Glass substrate
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| ※ Specification |
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Specifications of Glass
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Substrate
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Soda lime glass or SiO2/Soda lime glass
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Surface finished
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polished
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Thickness of glass
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1.1mm
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0.7mm
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Warp
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≦0.15mm/100mm
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≦0.15mm/100mm
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Waviness
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≦0.05um/20mm
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≦0.08um/20mm
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Standard size
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10mm x 10mm ~ 355mm x 406mm
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Size tolerance
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± 0.20mm
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Thickness tolerance
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± 0.05mm
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