Thin Film Design & Applications  
  
 
 
 
 

 

Fluorides

Material

Formula Index of Refraction @ 550nm Transparency Range (mm):
Calcium Fluoride CaF2 0.15 - 12.0
Cerium Fluoride CeF3 1.62 0.3 - 11.0
Cryolite Na3AlF6 1.35 0.2 - 14.0
Hafnium Fluoride HfF4 1.50 0.25 - 12.0
Lathanum Fluoride LaF3 1.60 0.25 - 11.0
Magnesium Fluoride MgF2 1.38 0.15 - 6.0
Neodymium Fluoride NdF3 1.63 0.25 - 11.0
Thorium Fluoride ThF4 1.55 0.25 - 14.0
Ytterbium Fluoride YbF3 1.45 0.25 - 11.0

 

Google