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Action Cross Sections of Two-Photon Excited Luminescence of Some Eu(III) and Tb(III) Complexes

Action Cross Sections of Two-Photon Excited Luminescence of Some Eu(III) and Tb(III) Complexes

Martinus H V Werts, Nicolas Nerambourg, Delphine Pélégry, Yann Le Grand, Mireille Blanchard-Desce

Photochem Photobiol Sci. 2005 Jul;4(7):531-8.

PMID: 15986061

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.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP19840994	Carbostyril 124		19840-99-4	Price

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