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
Similar Records
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. -->. 5d transitions in crystals and glasses: Progress report for the period June 1, 1987 to May 31, 1988
Related Subjects
360603* -- Materials-- Properties
ALKALI METAL COMPOUNDS
ALKALINE EARTH METAL COMPOUNDS
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
CALCIUM COMPOUNDS
CALCIUM FLUORIDES
CALCIUM HALIDES
CERIUM IONS
CHALCOGENIDES
CHARGED PARTICLES
CRYSTALS
DOCUMENT TYPES
DOPED MATERIALS
FLUORESCENCE
FLUORIDES
FLUORINE COMPOUNDS
GRATINGS
HALIDES
HALOGEN COMPOUNDS
IONS
LANTHANUM COMPOUNDS
LANTHANUM FLUORIDES
LITHIUM COMPOUNDS
LITHIUM FLUORIDES
LITHIUM HALIDES
LUMINESCENCE
MATERIALS
OPTICAL PROPERTIES
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
PROGRESS REPORT
RARE EARTH COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
YTTRIUM COMPOUNDS
YTTRIUM OXIDES