Optical properties of thulium-doped chalcogenide glasses and the uncertainty of the calculated radiative lifetimes using the Judd-Ofelt approach - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Journal of the Optical Society of America B Année : 2006

Optical properties of thulium-doped chalcogenide glasses and the uncertainty of the calculated radiative lifetimes using the Judd-Ofelt approach

Résumé

A brief description of the basic spectroscopic properties of Tm3+ -doped 20Ge-5Ga-10Sb-65S (GeGaSbS) glass is presented. Spontaneous-emission probabilities, radiative lifetimes, branching ratios, and quantum efficiency of Tm3+ in GeGaSbS glass are evaluated by use of Judd-Ofelt theory. Lifetime measurements are carried out at room and low temperatures. A large difference of the lifetime values occurs between the theoretical and experimental results. McCumber and Ladenburg-Funchtbauer techniques are used for the emission cross-section determinations. Discrepancies appear between these two techniques. Hypotheses about the presence of the diffusion-limited relaxation process are applied for explanations.

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Matériaux
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Dates et versions

hal-00868024 , version 1 (01-10-2013)

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Citer

Viet Giang Truong, Anne-Marie Jurdyc, Bernard Jacquier, B. S. Ham, A. Q. Le Quang, et al.. Optical properties of thulium-doped chalcogenide glasses and the uncertainty of the calculated radiative lifetimes using the Judd-Ofelt approach. Journal of the Optical Society of America B, 2006, 23 (12), pp.2588-2596. ⟨10.1364/JOSAB.23.002588⟩. ⟨hal-00868024⟩
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