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Issue 7, 2005
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Action cross sections of two-photon excited luminescence of some Eu(III) and Tb(III) complexes

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Abstract

Four different luminescent lanthanide complexes have been studied with respect to multiphoton excitation using near-infrared femtosecond pulses. The method for measuring action cross sections of two-photon excited fluorescence in solution relative to a known standard is reviewed. Two refractive index-related corrections are necessary in this method: one for the multiphoton excitation process, the other for the collection of the emitted light. It has been found that (2,4,6-trimethoxyphenyl)dipicolinic acid and Michler's ketone are reasonable sensitisers of two-photon excited lanthanide luminescence in solution, whereas dipicolinic acid and carbostyril-124 do not give rise to any detectable two-photon excited lanthanide luminescence using modest excitation powers (<20 mW focused at the sample) in the 700–1000 nm range.

Graphical abstract: Action cross sections of two-photon excited luminescence of some Eu(iii) and Tb(iii) complexes

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Publication details

The article was received on 31 Mar 2005, accepted on 25 May 2005 and first published on 10 Jun 2005


Article type: Paper
DOI: 10.1039/B504495B
Citation: Photochem. Photobiol. Sci., 2005,4, 531-538
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    Action cross sections of two-photon excited luminescence of some Eu(III) and Tb(III) complexes

    M. H. V. Werts, N. Nerambourg, D. Pélégry, Y. L. Grand and M. Blanchard-Desce, Photochem. Photobiol. Sci., 2005, 4, 531
    DOI: 10.1039/B504495B

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