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Low Absorption Optical Sapphire (LAOS)

GT Advanced Technologies, Advanced Materials GroupRequest Info
 
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Low Absorption Optical Sapphire, (LAOS), was developed as a special class of sapphire for High Energy Laser (HEL) windows and other critical low absorption applications. The material is manufactured in a proprietary process which eliminates almost all intrinsic losses of light in the bulk sapphire material. The material has been tested with Photothermal Common-path Interferometry and has shown less than 25 ppm of bulk absorption at 1064 nm.
LAOS from GT advanced technologies
These superior quality crystals excel in applications where minimal losses and low noise are critical such as Raman Spectroscopy. This sapphire is ultra-high purity material and is ideally suited for UV applications where solarization affects other sapphire materials. LAOS material can be optimized for your different wavelengths of interest in the range of 190 nm to 4.5 microns. LAOS Sapphire also exhibits the superior homogeneity of our highest grades of HEM Sapphire allowing optics to be manufactured to 1/20th wave Peak to Valley or better wave fronts.

Attributes and Features

     •  Bulk absorption < 25 ppm/cm @ 1064
     •  1/20th wave PV wave front
     •  Ultra-high purity
     •  Low noise, no thermal lensing
     •  Solarization resistant
     •  Large non-birefringent sizes

Applications
LAOS is used for High Energy Laser (HEL) windows, Raman Spectroscopy, White Light Generators and other applications where photon absorption cannot be tolerated. LAOS exhibits minimal photon absorption which eliminates thermal lensing, beam steering, solarization and other phenomena in high energy optical applications.


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