Migration-assisted nonlinear quenching in random media
JOSA B, Vol. 24, Issue 7, pp. 1527-1534 (2007)
http://dx.doi.org/10.1364/JOSAB.24.001527
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Abstract
A simple and highly accurate model is presented for the decay of the excited state density of randomly distributed luminescent centers (e.g., rare-earth ions or fluorescent dyes) affected by migration-assisted nonlinear quenching (e.g., upconversion or singlet–singlet annihilation). The model relates quenching efficiency, interpreted in terms of the time-dependent quenching coefficient, to parameters of underlying Förster energy transfer phenomena and to center concentration. The accuracy of the model is verified by comparison with Monte Carlo simulations. The model sets up a rigorous basis for the characterization of nonlinear quenching in Er-doped glasses and disordered organic optoelectronic materials.
© 2007 Optical Society of America
OCIS Codes
(060.2410) Fiber optics and optical communications : Fibers, erbium
(130.3130) Integrated optics : Integrated optics materials
(140.4480) Lasers and laser optics : Optical amplifiers
(160.4890) Materials : Organic materials
(160.5690) Materials : Rare-earth-doped materials
(260.2160) Physical optics : Energy transfer
ToC Category:
Materials
History
Original Manuscript: January 8, 2007
Manuscript Accepted: March 26, 2007
Published: June 15, 2007
Citation
Dmitry Khoptyar, Johannes Gierschner, and Hans-Joachim Egelhaaf, "Migration-assisted nonlinear quenching in random media," J. Opt. Soc. Am. B 24, 1527-1534 (2007)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-24-7-1527
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