Benefits of Sapphire Optical Windows

Sapphire windows are exceptionally tolerant to extreme temperature fluctuations and pressure differences, making them ideal for use as viewports in vacuum chambers or environments containing high-temperature plasma.
Wide Transmittance Range
Sapphire windows are transparent across a broad spectrum, from 170 nm to 5.5 µm, making them suitable for a wide array of optical applications.
Unique Sapphire Material Properties
Being a single crystal form of Al2O3, sapphire combines a set of advantageous chemical, mechanical, and optical properties.

Sapphire is resistant to strong acids, facilitating its use in corrosive atmospheres.

With a high Knoop hardness of 1800 parallel to the optic axis and 2200 perpendicular, sapphire windows offer superior resistance to scratches and abrasion.