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Magnesium Fluoride
For windows, lenses, prisms

Specification, Coating and orientation are available upon request.

MgF2 is commonly used for UV windows, lenses and polarizer. It is also useful in its transmission range for some IR spectroscopy applications.

Material

MgF2

Melting point ( oC )

1255

Density  ( g / cm3 )

3.18

Hardness

6

Thermal expansion coef.

13.7( oC-1x 10-6 )                                           

Refractive index

ho 1.37740

he 1.38945

Transmission waveband

0.11 - 7.5um

Transmission efficient

> 93% @5 m

> 85% @0.2 m                            

Temperature coeff.

2.3 ~1.7 @ 0.4 m

Crystal growth method                                          

Bridgeman

Cleavage plane

<100> or <110>

Application

VUV window and mirror, lens

 
 
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