Trapping solid aerosols with optical tweezers: A comparison between gas and liquid phase optical traps

M. D. Summers, D. R. Burnham, D. McGloin*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

64 Citations (Scopus)

Abstract

We demonstrate a method for the optical trapping of solid aerosol particles. Suspension of silica particles in ethanol allows their delivery to the trapping volume using a commercial medical nebulizer. The ethanol quickly evaporates, leaving the solid particles trapped in air. We use the technique to make comparisons between aerosol and colloid tweezing through power spectra analysis of the particle's positions fluctuations for identical particles trapped in a water or air suspending medium.

Original languageEnglish
Pages (from-to)7739-7747
Number of pages9
JournalOptics Express
Volume16
Issue number11
DOIs
Publication statusPublished - 26 May 2008

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