THE SPECTRA OF TRIVALENT CERIUM IONS IN ALKALINE-EARTH FLUORIDE CRYSTALS

Journal Article · Wed May 01 04:00:00 EDT 1963 · Opt. Spectry. (USSR) (English Transl.)

OSTI ID:4682216

Kaplyanskii, A A; Medvedev, V N; Feofilov, P P

The absorption and luminescence spectra of MeF/sub 2/-Ce single crystals (Me =Ca, Sr, Ba) were measured at 4.2, 77, and 300 deg K in the region of the allowed 4f-5d transitions of the Ce/sup 3+/ ion. These spectra indicated the existence of vibrational sequences of narrow, bands and lines; mirror symmetry was observed in the long-wavelength absorption band structure and in two luminescence bands assigned to transitions from the lowest d state to the /sup 2/ F/sub 3/2/, (ground state) and /sup 2/F/sub 7/2/, states. The forbidden transitions between these levels were observed in infrared absorption spectra. (auth)

• Research Organization: Originating Research Org. not identified
• NSA Number: NSA-17-033928
• OSTI ID: 4682216
• Journal Information: Opt. Spectry. (USSR) (English Transl.), Journal Name: Opt. Spectry. (USSR) (English Transl.) Vol. Vol: 14
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

ABSORPTION
ALKALINE EARTH METALS
BARIUM FLUORIDES
CALCIUM FLUORIDES
CATIONS
CERIUM COMPOUNDS
CERIUM FLUORIDES
CHEMISTRY
CONFIGURATION
ELECTRONS
ENERGY LEVELS
FLUORIDES
FREQUENCY
INFRARED RADIATION
LATTICES
LIGHT
LOW TEMPERATURE
LUMINESCENCE
MEASURED VALUES
MONOCRYSTALS
OSCILLATIONS
PHOTOMETRY
SPECTRA
SPECTROSCOPY
STRONTIUM FLUORIDES
SYMMETRY
TRANSLATIONS