Defining regimes and analytical expressions for fluence curves in pulsed laser heating of aerosolized nanoparticles

Fluence curves are a powerful tool for understanding the mechanisms underlying nanosecond pulse laser heating of aerosolized nanoparticles, which is relevant to laser-induced incandescence (LII). This paper presents analytical expressions encompassing the entirety of the fluence domain considered in...

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Bibliographic Details
Published in:Optics express 2017-03, Vol.25 (5), p.5684-5696
Main Authors: Sipkens, T A, Daun, K J
Format: Article
Language:English
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Summary:Fluence curves are a powerful tool for understanding the mechanisms underlying nanosecond pulse laser heating of aerosolized nanoparticles, which is relevant to laser-induced incandescence (LII). This paper presents analytical expressions encompassing the entirety of the fluence domain considered in LII and uses them to formally define fluence regimes. The derived expressions and non-dimensional parameters facilitate one of the first comparisons of published experimental fluence curves. This procedure provides physical insight into the laser-nanoparticle interaction and highlights inconsistencies in the application of LII models to analyze the data.
ISSN:1094-4087
1094-4087
DOI:10.1364/OE.25.005684