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Proceedings Paper

20-inch diameter CHES® sapphire boules
Author(s): Chandra P. Khattak; Joshua Filgate; Raj Shetty; C. Richard Schwerdtfeger; Saurabh Ullal
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Paper Abstract

An automated controlled heat extraction system (CHES)® has been developed to produce 300 kg, 500 mm diameter sapphire boules. The versatile process allows production of boules in a-, r- or c- orientations. The technological advancements come with major cost reductions making sapphire for consumer electronics, LEDs and large optical windows a reality. In addition, these features allow large scale production with a fast ramp rate.

Paper Details

Date Published: 22 May 2015
PDF: 8 pages
Proc. SPIE 9453, Window and Dome Technologies and Materials XIV, 945305 (22 May 2015); doi: 10.1117/12.2180647
Show Author Affiliations
Chandra P. Khattak, ARC Energy (United States)
Joshua Filgate, ARC Energy (United States)
Raj Shetty, ARC Energy (United States)
C. Richard Schwerdtfeger, ARC Energy (United States)
Saurabh Ullal, ARC Energy (United States)


Published in SPIE Proceedings Vol. 9453:
Window and Dome Technologies and Materials XIV
Brian J. Zelinski; Randal W. Tustison, Editor(s)

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