Energy transfer and non-linear optical properties at near ultraviolet wavelengths: Rare earth 4f yields 5d transitions in crystals and glasses
The project has considered several aspects of the optical properties of lanthanide (rare-earth) doped crystals and glasses at near ultraviolet wavelengths. These include two-photon absorption, excited state absorption, excited-state photoionization and color center formation, two-step photoconductivity, optical gain, energy transfer, radiative and nonradiative relaxation and optical grating formation. This report summarizes the research findings of the last two of these projects during the period December 1, 1989 through November 31, 1990. Measurements of the lifetimes of the 5d{yields}4f fluorescence transitions in Ce{sup 3+}:CaF{sub 2}, Ce{sup 3+}:LiYF{sub 4}, Ce{sup 3+}:LaF{sub 3}, Ce{sup 3+}:Y{sub 3}Al{sub 5}O{sub 12}, Ce{sup 3+}:YAlO{sub 3}, Ce{sup 3+}:YPO{sub 4} Ce{sup 3+}:fluoroberyllate glass, and Ce{sup 3+}:silicate glass between 77 K and 1,200 K are used to evaluate the radiative and nonradiative relaxation rates. The model for the nonradiative relaxation involves thermal promotion to higher conduction band states.
- Research Organization:
- Connecticut Univ., Storrs, CT (USA)
- Sponsoring Organization:
- DOE/ER
- DOE Contract Number:
- FG02-84ER45056
- OSTI ID:
- 6733756
- Report Number(s):
- DOE/ER/45056-9; ON: DE90015853
- Country of Publication:
- United States
- Language:
- English
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Energy transfer and non-linear optical properties at near ultraviolet wavelengths: Rare earth 4f {yields} 5d transitions in crystals and glasses. Final report, June 1, 1984--May 31, 1992
Energy transfer and non-linear optical properties at near ultraviolet wavelengths: Rare earth 4f yields 5d transitions in crystals and glasses
Related Subjects
ALUMINIUM OXIDES
FLUORESCENCE
CALCIUM FLUORIDES
CERIUM IONS
DOPED MATERIALS
LANTHANUM FLUORIDES
LITHIUM FLUORIDES
YTTRIUM OXIDES
CRYSTALS
GRATINGS
OPTICAL PROPERTIES
PROGRESS REPORT
ALKALI METAL COMPOUNDS
ALKALINE EARTH METAL COMPOUNDS
ALUMINIUM COMPOUNDS
CALCIUM COMPOUNDS
CALCIUM HALIDES
CHALCOGENIDES
CHARGED PARTICLES
DOCUMENT TYPES
FLUORIDES
FLUORINE COMPOUNDS
HALIDES
HALOGEN COMPOUNDS
IONS
LANTHANUM COMPOUNDS
LITHIUM COMPOUNDS
LITHIUM HALIDES
LUMINESCENCE
MATERIALS
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
RARE EARTH COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
YTTRIUM COMPOUNDS
360603* - Materials- Properties