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KCl substrate

KCl substrate

 

The main performance parameters

Crystal structure

Cubic  a=6.291Å

Growth method

Crystallization method

Transmission band

0.20~27.50um

Density

1.98(g/cm3)

Melting point

770℃

Refractive index

1.49025

Transmittance

>90%

Nf (Impurity absorption peak)

0.01114

Deliquescence

KCl is a water-soluble crystal, it is easily deliquescent and can not be polished by CMP

Packing

Independent vacuum packaging for each piece
class-100 clean bag, class-1000 clean bag

 

Standard Specification
Product Name Orientation Standard Size Thickness Polishing  
KCl substrate (100) <±2.0°
(110) <±2.0°
(111) <±2.0°

Or other off-angle
 
10x10x1.0mm
10x5mm
5x5mm
20x20mm
φ1" x 1.0mm
φ2" x 3.0mm
Or others
1.0mm
2.0mm
3.0mm
5.0mm
Or others
Fine ground
Single side polished
Double side polished

Surface finish: 60/40 or 80/50

Roughness: Ra<100A(10nm)
Roughness: Ra<50A(5.0nm)
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Sodium chloride and potassium chloride and potassium bromide single crystal are all transparent, Has a high infrared transmittance, the transmittance greater than 90% when thickness less 10mm and in the range of 4000-500cm-1, no impurity absorption. KCI single crystal as a laser window material, the optical performance is excellent.

 
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