Alpha-barium borate (α-BBO)

Beta-barium borate (β-BBO)

Birefringent crystals of the IR range (CdSe & CdS)

Bismuth germanate (BGO)

Calcite (CaCO3)

Fused silica

Gallium gadolinium garnet (Gd3Ga5O12 or GGG)

Gallium phosphide (GaP)

Gallium selenide (GaSe)

Iron-doped Lithium niobate (Fe:LiNbO3)

Lithium niobate (LiNbO3)

Lithium tantalate (LiTaO3)

Magnesium fluoride (MgF2)

Optical glass (BK-7)

Quartz crystalline (SiO2)

Sillenite crystals (BGO/BSO/BTO)

Tellurium dioxide (TeO2)

Zinc telluride (ZnTe)