Longitudinal optical trapping and sizing of aerosol droplets

A. E. Carruthers; J. P. Reid; A. J. Orr-Ewing

doi:10.1364/OE.18.014238

Longitudinal optical trapping and sizing of aerosol droplets

A. E. Carruthers, J. P. Reid, A. J. Orr-Ewing

Research output: Contribution to journal › Article (Academic Journal)

28 Citations (Scopus)

Abstract

We present evidence that aerosol droplets, similar to 1-2 mu m in diameter, can be optically bound over a 4mm distance within a volume formed by the overlap of the central cores and rings of two counterpropagating Bessel beams. The sizes of the individual polydisperse aerosol particles can be estimated from the angular variation of the elastic light scattering. Scattered light from the two orthogonally polarized trapping beams and from a Gaussian probe beam of different wavelength can be used to provide independent estimations of size. The coalescence of two droplets was observed and characterized. (C) 2010 Optical Society of America

Original language	English
Pages (from-to)	14238-14244
Number of pages	7
Journal	Optics Express
Volume	18
Issue number	13
DOIs	https://doi.org/10.1364/OE.18.014238
Publication status	Published - 21 Jun 2010

Access to Document

10.1364/OE.18.014238

Projects

1 Finished

NEW FRONTIERS IN QUANTITATIVE INFRA RED TO ULTRAVIOLET SPECTROSCOPY

Orr-Ewing, A. J.

1/01/07 → 1/07/12

Project: Research

Cite this

Carruthers, A. E., Reid, J. P., & Orr-Ewing, A. J. (2010). Longitudinal optical trapping and sizing of aerosol droplets. Optics Express, 18(13), 14238-14244. https://doi.org/10.1364/OE.18.014238

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AU - Carruthers, A. E.

AU - Reid, J. P.

AU - Orr-Ewing, A. J.

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N2 - We present evidence that aerosol droplets, similar to 1-2 mu m in diameter, can be optically bound over a 4mm distance within a volume formed by the overlap of the central cores and rings of two counterpropagating Bessel beams. The sizes of the individual polydisperse aerosol particles can be estimated from the angular variation of the elastic light scattering. Scattered light from the two orthogonally polarized trapping beams and from a Gaussian probe beam of different wavelength can be used to provide independent estimations of size. The coalescence of two droplets was observed and characterized. (C) 2010 Optical Society of America

AB - We present evidence that aerosol droplets, similar to 1-2 mu m in diameter, can be optically bound over a 4mm distance within a volume formed by the overlap of the central cores and rings of two counterpropagating Bessel beams. The sizes of the individual polydisperse aerosol particles can be estimated from the angular variation of the elastic light scattering. Scattered light from the two orthogonally polarized trapping beams and from a Gaussian probe beam of different wavelength can be used to provide independent estimations of size. The coalescence of two droplets was observed and characterized. (C) 2010 Optical Society of America

U2 - 10.1364/OE.18.014238

DO - 10.1364/OE.18.014238

M3 - Article (Academic Journal)

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VL - 18

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JO - Optics Express

JF - Optics Express

SN - 1094-4087

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