MgF2 Crystal Substrate

Lattice Constant

a = 4.64   c=3.06

M.P(oC)

1255

Density(g/cm3)

3.18

Hardness

6

CTE(oC-1x 10-6)

13.7

Refractive index

ho 1.37740    he 1.38945

trans-band (microns)

0.11 - 7.5

Transmittance

>93% @5μm
   >85% @ 0.2μm

Color difference(Hf-Hc)

0.00355

Temperature Coefficient( dh / dt x 10-6 )

2.3 ~1.7 @ 0.4 m

Method of crystal growth

Bridgeman