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Evap materials - Low Refractive Index

Materials & Composition Typical Purity Targets Evap. Material E-Beam Starter Source

CaF2 (Calcium Fluoride)

99.9%-99.999% Yes Yes

NaF (Sodium Fluoride)

99.9% Yes Yes

Na3AlF6 (Cryolite)

99.9% Yes Yes

KF (Potassium Fluoride)

99.95% Yes Yes

MgF2 (Magnesium Fluoride)

99.99% Yes Yes Yes

AlF3 (Aluminum Fluoride)

99.5%-99.9% Yes

SiO2 (Silicon Dioxide)

99.99% Yes Yes Yes

BaF2 (Barium Fluoride)

99.9% Yes Yes

Sio2+Al203 (Silicon Dioxide + Aluminum Dioxide)

99.99% Yes Yes

YbF3 (Ytterbium Fluoride)

99.99% Yes