Production of sapphire domes by the growth of near net shape single crystals

S. Biderman, A. Horowitz, Y. Einav, G. Ben-Amar, D. Gazit, A. Stern, M. Weiss

Research output: Contribution to journalConference articlepeer-review

7 Scopus citations

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.

Original languageEnglish
Pages (from-to)27-34
Number of pages8
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume1535
DOIs
StatePublished - 1 Nov 1991
Externally publishedYes
EventPassive Materials for Optical Elements 1991 - San Diego, United States
Duration: 21 Jul 1991 → …

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