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Opt Express. 2008 May 26;16(11):7655-64.

Optical trapping and spectral analysis of aerosols with a supercontiuum laser source.

Author information

1
Electronic Engineering and Physics, University of Dundee, Nethergate, Dundee, UK. m.guillon@dundee.ac.uk

Abstract

We report on the optical trapping of water droplets with a supercontinuum laser source. Droplet size is determined by observing the spectrum of the on-axis backscattered light. In contrast to to monochromatic trapping, the broad spectrum of the supercontinuum covers several resonances of the first excited Mie coefficients. A minimum value of Q approximately 0.16 for the trapping efficiency is estimated.

PMID:
18545473
[Indexed for MEDLINE]

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