Accession Number:

AD0829207

Title:

CZOCHRALSKI RUBY

Descriptive Note:

Final rept. 1 Jan-30 Apr 1967

Corporate Author:

UNION CARBIDE CORP INDIANAPOLIS IN ELECTRONICS DIV

Personal Author(s):

• Keig, George A.

Report Date:

1968-02-10

Pagination or Media Count:

29.0

Abstract:

The Czochralski growth technique has been developed to yield large ruby crystals which can be fabricated into rods 2 inches diameter and 12 inches long. The optical quality of the large diameter crystals and fabricated rods has been evaluated. Ruby rods of 34-inch diameter and having superior optical have been fabricated from sections of the large diameter boules. Work has continued towards obtaining an improved understanding of the optical inhomogeneities in the ruby. Special emphasis has been placed on the core as this has been shown to introduce an undesirable energy distribution during lasing. Core-free rods have been fabricated from the large diameter boules and their behavior under both passive and active conditions compared to that of rods containing the core.

Descriptors:

• *CRYSTAL GROWTH
• *LASERS
• ANNEALING
• CORRELATION TECHNIQUES
• MANUFACTURING
• OPTICAL PROPERTIES
• RUBY
• SCHLIEREN PHOTOGRAPHY

Subject Categories:

• Lasers and Masers
• Crystallography

Distribution Statement:

APPROVED FOR PUBLIC RELEASE