NAVIGATION
Magnesium oxide substrate, 10x10x1mm, polished one side, 110 orientation
Aluminum oxide substrate, 10x10x1mm, polished one side, A plane
Aluminum oxide substrate, 10x10x1mm, polished one side, C plane
Aluminum oxide substrate, 10x10x0.5mm, polished two sides, A plane
Aluminum oxide substrate, 10x10x0.5mm, polished two sides, M plane
Aluminum oxide substrate, 10x10x1mm, polished two sides, R plane