Upconversion luminescence of transparent Er3+-doped chalcohalide glass-ceramics

Upconversion luminescence of Er3+ ions in chalcohalide glass and in transparent glass-ceramic samples under continuous wave and pulsed laser excitation in the 4I9/2 level has been studied. Green and red emissions corresponding to (2H11/2, 4S3/2) → 4I15/2 and 4F9/2 → 4I15/2 transitions, respectively,...

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Published in:Optical materials 2009-03, Vol.31 (5), p.760-764
Main Authors: BALDA, R, GARCIA-REVILLA, S, FERNANDEZ, J, SEZNEC, V, NAZABAL, V, ZHANG, X. H, ADAM, J. L, ALLIX, M, MATZEN, G
Format: Article
Language:English
Subjects:
Chemical Sciences
Communication, education, history, and philosophy
Exact sciences and technology
Fundamental areas of phenomenology (including applications)
Glasses, quartz
Material chemistry
Optical materials
Optics
Physics
Physics literature and publications
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Summary:Upconversion luminescence of Er3+ ions in chalcohalide glass and in transparent glass-ceramic samples under continuous wave and pulsed laser excitation in the 4I9/2 level has been studied. Green and red emissions corresponding to (2H11/2, 4S3/2) → 4I15/2 and 4F9/2 → 4I15/2 transitions, respectively, have been observed and attributed to a two photon upconversion process. A significant increase of upconversion luminescence has been observed in the transparent glass-ceramics if compared with the one from the base glass. Moreover, the red emission corresponding to the 4F9/2 → 4I15/2 transition is enhanced in the glass-ceramics as compared to the green luminescence from (2H11/2, 4S3/2) levels probably due to an increase of the energy transfer processes populating the 4F9/2 level. The possible excitation mechanisms responsible for this upconversion luminescence are discussed.
ISSN:0925-3467
1873-1252
DOI:10.1016/j.optmat.2008.06.006