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Proceedings Paper

Production of sapphire domes by the growth of near-net-shape single crystals
Author(s): Shlomo Biderman; Atara Horowitz; Yehezkel Einav; Gabi M. Ben-Amar; Dan Gazit; Adrian Stern; Mathania Weiss
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Paper Abstract

Large sapphire single crystals with the geometry of near net shape domes are grown by the gradient solidification method (GSM). The growth is carried out in double-wall molybdenum crucibles, and perfect crystals, free of grain boundaries and scattering centers, are produced. The process is used to grow sapphire domes with different crystallographic orientations, including the optical axis. This process significantly shortens the fabrication process of the dome, thus leading to a cheaper, high-quality, product.

Paper Details

Date Published: 1 November 1991
PDF: 8 pages
Proc. SPIE 1535, Passive Materials for Optical Elements, (1 November 1991); doi: 10.1117/12.48300
Show Author Affiliations
Shlomo Biderman, Nuclear Research Ctr./Negev (Israel)
Atara Horowitz, Nuclear Research Ctr./Negev (Israel)
Yehezkel Einav, Nuclear Research Ctr./Negev (Israel)
Gabi M. Ben-Amar, Nuclear Research Ctr./Negev (Israel)
Dan Gazit, Nuclear Research Ctr./Negev (Israel)
Adrian Stern, Nuclear Research Ctr./Negev (Israel)
Mathania Weiss, Nuclear Research Ctr./Negev (Israel)

Published in SPIE Proceedings Vol. 1535:
Passive Materials for Optical Elements
Gary W. Wilkerson, Editor(s)

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