Effects of energy transfer among Er sup 3+ ions on the fluorescence decay and lasing properties of heavily doped Er:Y sub 3 Al sub 5 O sub 12

Journal Article · Wed Aug 01 04:00:00 EDT 1990 · Journal of the Optical Society of America, Part B: Optical Physics; (USA)

DOI:https://doi.org/10.1364/JOSAB.7.001456· OSTI ID:6376732

Shi, W Q; Bass, M; Birnbaum, M ^[1]

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1. Center for Laser Studies, University of Southern California, Los Angeles, CA (USA)

Nonexponential fluorescence decay has been observed from both {sup 4}I{sub 11/2} and {sup 4}I{sub 13/2} states of Er{sup 3+} ions in heavily doped Er:YAG at room temperature. Processes of cross relaxation that originate in these states are shown to be responsible. Rate equations that include cross-relaxation processes are written and numerically solved, to result in the determination of the cross-relaxation coefficients. It is found that these coefficients do not change with Er{sup 3+} concentration. The effects of the cross-relaxation processes of Er{sup 3+} ions on fluorescence decay and lasing properties are discussed.

• OSTI ID: 6376732
• Journal Information: Journal of the Optical Society of America, Part B: Optical Physics; (USA), Journal Name: Journal of the Optical Society of America, Part B: Optical Physics; (USA) Vol. 7:8; ISSN JOBPD; ISSN 0740-3224
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
426002* -- Engineering-- Lasers & Masers-- (1990-)
ALLOYS
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
CHALCOGENIDES
CHARGED PARTICLES
DOPED MATERIALS
EMISSION SPECTRA
ENERGY TRANSFER
ERBIUM ADDITIONS
ERBIUM ALLOYS
ERBIUM IONS
FLUORESCENCE
IONS
KINETICS
LASERS
LUMINESCENCE
MATERIALS
OXIDES
OXYGEN COMPOUNDS
RARE EARTH ADDITIONS
RARE EARTH ALLOYS
SOLID STATE LASERS
SPECTRA
TRANSITION ELEMENT COMPOUNDS
YTTRIUM COMPOUNDS
YTTRIUM OXIDES