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Article Dans Une Revue Optical Materials Année : 2009

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

Résumé

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.

Domaines

Matériaux

Dates et versions

hal-00402138 , version 1 (06-07-2009)

Identifiants

Citer

R. Balda, S. Garcia-Revilla, J. Fernandez, V. Seznec, Virginie Nazabal, et al.. Upconversion luminescence of transparent Er3+-doped chalcohalide glass-ceramics. Optical Materials, 2009, 31 (5), pp.760-764. ⟨10.1016/j.optmat.2008.06.006⟩. ⟨hal-00402138⟩
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