Sapphire:

Sapphire is the best material for highly sophisticated optical applications that require a wide range of light transmittance. Sapphire transmits light over a broad wavelength range spanning from 0.15 to 5 microns. from the vacuum ultra violet to the infrared spectrum.  It is recognized as a highly important optical material as it combines high transmission with outstanding mechanical-strength properties at high both and low temperatures.

The transmitted wavefront distortion is evaluated by measuring the homogeneity of the refractive index of sapphire. Data show that the homogeneity for all grades of HEM sapphire is in the 0.1 PPM range.

The availability of sapphire in large sizes with low scatter has made it ideal for the most stringent optical applications, such as high power laser windows. The VUV (vacuum ultra violet) grade of sapphire combines high purity with extremely low defect density; the resulting material transmits light at the 205 nm range where standard sapphire material absorbs the light. The VUV grade of sapphire is especially resistant to solarization and damage from radiation or high-power-density beams.

Glass Dynamics, LLC

2662 Hance Bridge Road, Vineland, NJ 08361 

Tel:  856-205-1530  Fax:  856-507-1471 

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