iLIF: illumination by Laser-Induced Fluorescence for single flash imaging on a nanoseconds timescale

J.A. van der Bos, A.G. Zijlstra, E.C. Gelderblom, Michel Versluis

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23 Citations (Scopus)
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Abstract

The challenge in visualizing fast microscale fluid motion phenomena is to record high-quality images free of motion-blur. Here, we present an illumination technique based on laser-induced fluorescence which delivers high-intensity light pulses of 7 ns. The light source consists of a Q-switched Nd:YAG laser and a laser dye solution incorporated into a total internal reflection lens, resulting in a uni-directional light beam with a millimeter-sized circular aperture and 3° divergence. The laser coherence, considered undesirable for imaging purposes, is reduced while maintaining a nanoseconds pulse duration. The properties of the illumination by laser-induced fluorescence (iLIF) are quantified, and a comparison is made with other high-intensity pulsed and continuous light sources
Original languageUndefined
Pages (from-to)1283-1289
Number of pages7
JournalExperiments in fluids
Volume51
Issue number5
DOIs
Publication statusPublished - 2011

Keywords

  • IR-79566
  • METIS-283860

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