Time-resolved photoluminescence spectroscopy from erbium-doped Ga0.55Al0.45As

Time-resolved photoluminescence (PL) spectroscopy has been performed on erbium-doped Ga0.55Al0.45As. We have investigated the 4I13/2→4I15/2 optical transition. The measured fluorescence lifetime is around 1.2 ms which is similar to values found for other erbium-doped III-V compounds. Studies as a fu...

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Bibliographic Details
Published in:Applied physics letters 1991-05, Vol.58 (19), p.2132-2134
Main Authors: BENYATTOU, T, SEGHIER, D, GUILLOT, G, MONCORGE, R, GALTIER, P, CHARASSE, M. N
Format: Article
Language:English
Subjects:
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Exact sciences and technology
Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation
Photoluminescence
Physics
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Summary:Time-resolved photoluminescence (PL) spectroscopy has been performed on erbium-doped Ga0.55Al0.45As. We have investigated the 4I13/2→4I15/2 optical transition. The measured fluorescence lifetime is around 1.2 ms which is similar to values found for other erbium-doped III-V compounds. Studies as a function of temperature indicate nonradiative transitions characterized by thermal activation of 40 meV. With the help of two beam experiments we have confirmed the existence of Auger losses during the PL excitation and a model of the excitation process is proposed that accounts for the experimental results.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.104983