Near-infrared excitation of alkane ultra-violet fluorescence

被引：9

作者：

Volkmer, A ^{[1
]}

Wynne, K ^{[1
]}

Birch, DJS ^{[1
]}

机构：

[1] Univ Strathclyde, Dept Phys & Appl Phys, Photophys Res Grp, Glasgow G4 0NG, Lanark, Scotland

来源：

CHEMICAL PHYSICS LETTERS | 1999年 / 299卷 / 05期

关键词：

D O I：

10.1016/S0009-2614(98)01316-5

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

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. (C) 1999 Elsevier Science B.V. All rights reserved.

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页码：395 / 402

页数：8

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