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Energy migration and up-conversion in Cs2NaErxY1-xCl6 at 1.2 K
Author(s): Maya Campbell; Werner Humbs; Johann Strasser; Hartmut Yersin; Colin D. Flint
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Paper Abstract

Low temperature, high resolution emission spectra have been measured for the pure and diluted erbium elpasolites, Cs2NaErxY1-xCl6 from the 4G11/2, 2G11/2, 4S3/2, 4F9/2, and 4I9/2 excited states of Er3+ under 364 nm argon laser excitation. A number of these spectra show some unusual features which are consistent with migration of the excitation energy within the lattice leading to excitation of luminescence from defect sites. The nature of the defect sites is discussed and possible mechanisms leading to the migration of the excitation energy within the lattice are explored.

Paper Details

Date Published: 1 November 1997
PDF: 5 pages
Proc. SPIE 3176, Tunable Solid State Lasers, (1 November 1997); doi: 10.1117/12.293432
Show Author Affiliations
Maya Campbell, Univ. of London (United Kingdom)
Werner Humbs, Univ. Regensburg (Germany)
Johann Strasser, Univ. Regensburg (Germany)
Hartmut Yersin, Univ. Regensburg (Germany)
Colin D. Flint, Univ. of London (United Kingdom)

Published in SPIE Proceedings Vol. 3176:
Tunable Solid State Lasers
Wieslaw Strek; Edward Lukowiak; Barbara Nissen-Sobocinska, Editor(s)

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