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LiF substrate

LiF substrate

 

The main performance parameters

Product Name

Lithium fluoride (LiF) single crystal substrate

Crystal Structure

Cubic

Lattice Constants

4.02 A

Density

2.65 (g/cm3)

Melting Point

884 ℃

Growth Method

Bridgeman

Mohs Hardness

3 Mohs

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>

LiF crystal application:

IR and UV windows, prism and substrate

Surface Quality:

CMP-polished (Roughness: Ra<10A  (1.0nm))
Optical polished (Surface finish: 60-40, 40-20 or others)

Packing

class-100 clean bag, in class-1000 clean room

 

Standard Specification
Product Name Orientation Standard Size Thickness Polishing  
LiF single crystal substrate <100> ±0.5°
<110> ±0.5°
<111> ±0.5°
Or other off-angle
10x10mm
10x5mm
5x5mm
20x20mm
φ25.4 x 0.5mm
Or others
 0.5mm
1.0mm
2.0mm
Or others
Fine ground
Single side polished
Double side polished

Roughness: Ra<10A(1.0nm)
Inquiry Online

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.
 
Send Inquiry Online

For more information, please feel free to send us an Online Inquiry or Email us.



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