Upconversion spectroscopy of Al2O3:Er3+

J. Bradley, F. Ay, A. Kahn, H. Scheife, K. Petermann, G. Huber, R.M. de Ridder, Markus Pollnau

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    The spectroscopic properties of $Al_2O_3:Er^{3+}$ thin films have been investigated by lifetime measurements. The luminescence decay curves show an initial non-exponential component, followed by an exponential tail, whose decay time decreases with increasing $Er^{3+}$ concentration. This behavior can be described with good accuracy by a microscopic treatment that takes into account both energy migration and energytransfer upconversion among $Er^{3+}$ ions. Parameters such as the migration mean time τ$_0$ and the donor-acceptor transfer probability CDA are derived. We show that, in the concentration range of interest for waveguide amplifiers at 1.5 μm, upconversion occurs mostly in the static regime.
    Original languageUndefined
    Title of host publicationProceedings of the 13th Annual Symposium of the IEEE LEOS Benelux Chapter
    EditorsKerstin Worhoff, L. Agazzi, N. Ismail, X Leijtens
    Place of PublicationEnschede, The Netherlands
    PublisherIEEE/LEOS Benelux Chapter
    Number of pages3
    ISBN (Print)978-90-365-2768-2
    Publication statusPublished - 27 Nov 2008
    Event13th Annual Symposium of the IEEE/LEOS Benelux Chapter 2008 - Enschede, Netherlands
    Duration: 27 Nov 200828 Nov 2008
    Conference number: 13

    Publication series

    PublisherIEEE LEOS Benelux Chapter


    Conference13th Annual Symposium of the IEEE/LEOS Benelux Chapter 2008


    • IOMS-APD: Active Photonic Devices
    • METIS-255096
    • IR-65277
    • EWI-14826

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