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Fused Silica
 

 Specification

 

Specification of fused silica

Type

JGS1

JGS2

JGS3

Grade

Ultraviolet grade

Optical grade

Full spectrum grade

Transmission

165-2500 nm

230-2500 nm

175-3500 nm

OH-Content

1200 ppm

150 ppm

5 ppm

Impurity Constant

5 ppm

20 – 40 ppm

40 – 50 ppm

Surface Finished

Double side polished

Roughness

0.5nm

Size

10mm-120mm

Thickness

0.5mm or 1mm

Typical applications

Deep UV and visible wavelength range; laser lenses, windows, prisms, mirrors

High temperature and pressure applications, optical flats, microscope slides and sight glass

IR & UV substrate applications

 Optical properties:

 

 

Single Crystalline Quartz

 

 Specification

 

Specification of Single Crystalline Quartz

Purity Wt %

99.99%

Crystal Structure

Hex. a= 4.914 Å c = 5.405 Å

Growth Method

Hydrothermal

Hardness

7.0 Moh’s

Density

2.684 g/cm3

Melt Point

1610℃ ( phase transition point: 573.1℃)

Orientation

X,Y or Z cut

Surface finished

Double side polished

RMS roughness

0.5nm

Size

10mm-100mm

Standard Thickness

0.5mm or 1mm

 

Magnesium Oxide (MgO)
 

 Specification
 

Standard Specifications of MgO

Crystal Structure

Cubic m3m NaCl type

Cell parameter

a= 4.213 Å

Melting point

3250 °K

Density

3.58g/cm3

Standard size

2”x 2”, 1” x 1”, Ф2”, 20m x 20mm, 10mm x 10mm, 10mm x 5mm, customer design

Standard Thickness

0.5mm, 1.0mm

Thickness tolerance

±0.02mm or ±0.005mm for special order

Polish

SSP (one side) or DSP (two sides)

Orientation

<100>  <110>  <111>

Orientation accuracy

± 0.5°

RMS roughness

≤10 Å

 

Single Crystal ZnO
 

 Specification
 

Standard Specifications of ZnO

Purity wt%

99.99%

Crystal Structure

Hexagonal: a= 3.252 Å , c = 5.313 Å

Growth Method

Hydrothermal

Melting point

1975℃

Density

5.7 g/cm3

Standard size

5mm x 5mm, 10mm x 10mm, 20mm x 20mm

Standard Thickness

0.35mm, 0.5mm and 1.0mm

Surface Finished

One side polished or double side polished

Orientation

<0001>, <11-20>, <10-10>

RMS roughness

Ra < 10 Å

 
Glass substrate
 
 Specification
 

Specifications of Glass

Substrate

Soda lime glass  or  SiO2/Soda lime glass

Surface finished

polished

Thickness of glass

1.1mm

0.7mm

Warp

≦0.15mm/100mm

≦0.15mm/100mm

Waviness

≦0.05um/20mm

≦0.08um/20mm

Standard size

10mm x 10mm ~ 355mm x 406mm

Size tolerance

± 0.20mm

Thickness tolerance

± 0.05mm

 

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