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Proceedings Paper

Optical manipulation and characterisation of aerosol droplets
Author(s): Jonathan P. Reid; Laura Mitchem; Rebecca J. Hopkins; Andrew D. Ward
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Paper Abstract

Aerosol droplets are trapped and manipulated with a single-beam gradient-force optical trap for timescales of hours. By coupling the optical trap with cavity enhanced Raman scattering, the size of the trapped droplet can be determined with nanometre accuracy and high time resolution. This allows the evolution in droplet size and composition to be monitored during the growth or evaporation of a single trapped droplet, providing a method for characterising the factors that govern aerosol droplet size. The simultaneous trapping of two or more aerosol droplets in parallel optical traps can permit studies of aerosol coagulation.

Paper Details

Date Published: 26 August 2005
PDF: 9 pages
Proc. SPIE 5930, Optical Trapping and Optical Micromanipulation II, 593015 (26 August 2005); doi: 10.1117/12.615168
Show Author Affiliations
Jonathan P. Reid, Univ. of Bristol (United Kingdom)
Laura Mitchem, Univ. of Bristol (United Kingdom)
Rebecca J. Hopkins, Univ. of Bristol (United Kingdom)
Andrew D. Ward, Rutherford Appleton Lab. (United Kingdom)

Published in SPIE Proceedings Vol. 5930:
Optical Trapping and Optical Micromanipulation II
Kishan Dholakia; Gabriel C. Spalding, Editor(s)

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