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


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Pollnau, M. and Lüthy, W. and Weber, H.P. and Krämer, K. and Güdel, H.U. and McFarlane, R.A. (1996) Excited-state dynamics in the low-phonon materials Er3+:BaY2F8 and Cs3Er2Br9. In: Advanced Solid State Lasers, 31 January - 2 February 1996, San Francisco, CA.

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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.
Item Type:Conference or Workshop Item
Copyright:© 1996 Optical Society of America
Link to this item:http://purl.utwente.nl/publications/71679
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