Optical crystals are used as view ports to protect other components within an optical assembly, instrument, or laser. In certain applications, optical crystals are required to withstand harsh environmental conditions and provide high levels of performance and reliability. Sapphire crystal has several unique properties that make it the ideal material for these applications.

1. sapphire crystals will not get dark and lose their brilliancy when exposed to UV light.

2. sapphire crystals are extremely stable and resistant to attack by strong acid due to sapphire’s high dielectric constant.

3. sapphire crystals offer wideband transmission from UV to Mid-IR (0.15-5.5µm).

All these unique properties make sapphire crystals the ideal material for extreme mechanical, chemical & optical applications.