Excited-state dynamics in the low-phonon materials Er3+:BaY2F8 and Cs3Er2Br9

M. Pollnau, W. Lüthy, H.P. Weber, K Krämer, H.U. Güdel, R.A. McFarlane

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    Abstract

    By measuring ground-state absorption (GSA), fluorescence, and excited-state absorption (ESA) at the wavelength region around 550nm the population dynamics in Er3+:BaY2F8 and Cs3Er2Br9 are investigated. The excitation dynamics of Er3+:BaY2F8 are comparable with those in other fluoride or oxide materials. In Cs3Er2Br9 the smaller Stark splitting of the levels shifts the wavelengths of the green emission and parasitic ESA off resonance. It enhances, however, ground-state reabsorption. Upconversion leads to sigruficant green fluorescence from the 2H9/2 level. Multiphonon transitions do not contribute to the population dynamics in Cs3Er2Br9.
    Original languageEnglish
    Pages493-497
    Number of pages5
    Publication statusPublished - Jan 1996
    EventAdvanced Solid State Lasers, ASSL 1996 - San Francisco, United States
    Duration: 31 Jan 1996 → 2 Feb 1996

    Conference

    ConferenceAdvanced Solid State Lasers, ASSL 1996
    Abbreviated titleASSL
    CountryUnited States
    CitySan Francisco
    Period31/01/96 → 2/02/96

    Keywords

    • IOMS-APD: Active Photonic Devices

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      Pollnau, M., Lüthy, W., Weber, H. P., Krämer, K., Güdel, H. U., & McFarlane, R. A. (1996). Excited-state dynamics in the low-phonon materials Er3+:BaY2F8 and Cs3Er2Br9. 493-497. Paper presented at Advanced Solid State Lasers, ASSL 1996, San Francisco, United States.