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Article Dans Une Revue Photochemical & Photobiological Sciences Année : 2005

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

Résumé

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.

Dates et versions

hal-01206347 , version 1 (28-09-2015)

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Martinus H. V. Werts, Nicolas Nerambourg, Delphine Pélégry, Yann Le Grand, Mireille Blanchard-Desce. Action cross sections of two-photon excited luminescence of some Eu(III) and Tb(III) complexes. Photochemical & Photobiological Sciences , 2005, 4 (7), pp.531-538. ⟨10.1039/B504495B⟩. ⟨hal-01206347⟩
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