Near-infrared excitation of alkane ultra-violet fluorescence

We report the generation of ultra-violet fluorescence from linear and cyclic saturated hydrocarbons in neat solution when excited with femtosecond near-infrared laser pulses at 800 nm. Fluorescence decay, spectra and power dependence studies are reported. Steady-state and time-resolved experiments a...

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Bibliographic Details
Published inChemical physics letters Vol. 299; no. 5; pp. 395 - 402
Main Authors Volkmer, Andreas, Wynne, Klaas, Birch, David J.S
Format Journal Article
LanguageEnglish
Published Elsevier B.V 16.01.1999
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Summary:We report the generation of ultra-violet fluorescence from linear and cyclic saturated hydrocarbons in neat solution when excited with femtosecond near-infrared laser pulses at 800 nm. Fluorescence decay, spectra and power dependence studies are reported. Steady-state and time-resolved experiments are in agreement with previously reported data obtained with one-photon vacuum ultra-violet, X-ray, electron impact and two-photon excitation. Our results indicate that the mechanisms leading to the fluorescing excited state are multi-photon absorption and ionisation with the latter followed by diffusion-controlled geminate cation–electron recombination.
ISSN:0009-2614
1873-4448
DOI:10.1016/S0009-2614(98)01316-5