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LiF substrate, window

LiF substrate, window

 

 The main performance parameters

Crystal structure

Cubic

Lattice constants

4.02 A

Density

2.65 (g/cm3)

Melting point

884 ℃

Growth method

Bridgeman

Mohs hardness

3 Mohs

The coefficient of thermal expansion

3.195 x 10-6/℃ //c

Refractive index

No=1.394; ne=1.394

Transmission band

0.11-6.5um

Cleavage plane

<100>

Standard Size

 5x5mm, 10x10mm, Dia1"(25.4mm), Dia4"(100mm)

Or according to customer's requirements

Standard Thickness

0.5mm, 1.0mm, 2.0mm, 5.0mm

Surface roughness

Ra<5A  (5 x 5um)

LiF crystal application

IR and UV windows, prism and substrate

Polishing

Single or double side polished

Packing

Class 100 clean bag, 1000 clean room

 

Lithium fluoride crystals (LiF) belong to the cubic system, and the cleavage plane is the (100) plane, which has excellent optical properties, especially in the deep ultraviolet range. 
 
 
With the development of deep ultraviolet technology in recent years, lithium fluoride crystals are widely used for deep ultraviolet, due to its high transmittance in the deep ultraviolet region and short cutoff wavelengths.
 
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