V.I.Khramtsova, A.P.Silka
Received February 15, 1999
PbF2 films is proposed as the low refractive index
layer in combination with PbTe in production of interference light
filters for IR spectral region. The use of PbF2 instead of
ZnS used as a rule in this region allows to reduce a numbers of
layers in the filter or to improve the system parameters at the same
layer number. The experimental filters obtained have a sufficient
mechanical strength and can be operated in a wide temperature range
from 100oC to liquid nitrogen temperatures.