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Magnesia Spinel (Spinel Mg₂Al₂O)₄
Our substrates are guaranteed the highest quality and largest sizes available with sizes up to 37 mm diameter. Standard orientations are (111) and (100). For III-V thin film deposition for growing blue lasers and LEDs, our standard size is 10 x 10 x .5 mm and 32 mm diameter with an orientation of (111).
click here for superconductor substrate properties
click here for III-V substrate properties

Sapphire

Tb: Glass
Tb: Glass is used for visible and near IR isolators. It is available 5 mm diameter and 50 mm long.

Titanium Oxide (Rutile) TiO₂