Grouped centers in corundum

Journal Article · Wed Jan 01 00:00:00 EST 1986 · J. Appl. Spectrosc. (Engl. Transl.); (United States)

OSTI ID:5499756

Gul'chuk, P P; Chernina, E A; Lituinov, L A; Petrenko, P V

The authors consider emission from unirradiated corundum in the region 510-595 nm. The centers emitting in this region are examined and the growth and treatment conditions of the nominally pure corundum single crystals are shown. The fluorescence spectra for excitation in the 313- and 436-nm bands for white sapphires grown by Stepanov's method in helium containing CO, by Kyropoulos' method, and by Verneuil's method with subsequent heat treatment in aluminum vapor are shown. All the crystals show emission peaking at 550 nm.

• OSTI ID: 5499756
• Journal Information: J. Appl. Spectrosc. (Engl. Transl.); (United States), Vol. 43:1
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
CORUNDUM
COLOR CENTERS
CRYSTAL GROWTH METHODS
FLUORESCENCE
PHYSICAL RADIATION EFFECTS
ABSORPTION SPECTRA
EMISSION SPECTRA
FLUORESCENCE SPECTROSCOPY
GAMMA RADIATION
INVERTED STEPANOV METHOD
MONOCRYSTALS
PHOTOEMISSION
SAPPHIRE
ULTRAVIOLET SPECTRA
VERNEUIL METHOD
WAVELENGTHS
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
CHALCOGENIDES
CRYSTAL DEFECTS
CRYSTAL STRUCTURE
CRYSTALS
ELECTROMAGNETIC RADIATION
EMISSION
EMISSION SPECTROSCOPY
FLAMES
IONIZING RADIATIONS
LUMINESCENCE
MINERALS
OXIDE MINERALS
OXIDES
OXYGEN COMPOUNDS
POINT DEFECTS
RADIATION EFFECTS
RADIATIONS
SECONDARY EMISSION
SPECTRA
SPECTROSCOPY
VACANCIES
360206* - Ceramics
Cermets
& Refractories- Radiation Effects
360202 - Ceramics
Cermets
& Refractories- Structure & Phase Studies