Jump to main content
Jump to site search

Volume 137, 2008
Previous Article Next Article

Characterization of microparticles with driven optical tweezers

Author affiliations

Abstract

We discuss how actively-driven optical tweezers may be used to characterize Brownian microparticles. Two experiments are described in detail. We follow the thermal fluctuations of a charged particle in an oscillatory electric field and demonstrate that charges as low as a few elementary charges can be measured accurately and reproducibly. Secondly, we measure the orientational dynamics of a trapped rotating droplet and use circular polarimetry within optical tweezers to determine in situ birefringence.

Back to tab navigation

Publication details

The article was received on 16 Mar 2007, accepted on 03 Apr 2007 and first published on 16 Jul 2007


Article type: Paper
DOI: 10.1039/B703994H
Citation: Faraday Discuss., 2008,137, 319-333
  •   Request permissions

    Characterization of microparticles with driven optical tweezers

    T. A. Wood, G. S. Roberts, S. Eaimkhong and P. Bartlett, Faraday Discuss., 2008, 137, 319
    DOI: 10.1039/B703994H

Search articles by author

Spotlight

Advertisements