Jordan, P., Cooper, J., Mcnay, G., Docherty, F.T. , Smith, W.E., Sinclair, G. and Padgett, M.J. (2004) Three-dimensional optical trapping of partially silvered silica microparticles. Optics Letters, 29(21), pp. 2488-2490. (doi: 10.1364/OL.29.002488)
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Abstract
We demonstrate three-dimensional trapping of micrometer- diameter silica particles, partially coated with silver, within conventional optical tweezers. Although metallic particles are usually repelled from the beam focus by the scattering force, we show that transparent spheres partially coated with silver can be trapped with efficiencies comparable with dielectric particles. The trapping characteristics of these particles are examined as a function of metallic coverage, and the application of these particles to surface-enhanced resonance Raman scattering is investigated.
| Item Type: | Articles |
|---|---|
| Status: | Published |
| Refereed: | Yes |
| Glasgow Author(s) Enlighten ID: | Padgett, Professor Miles and Docherty, Dr Frances |
| Authors: | Jordan, P., Cooper, J., Mcnay, G., Docherty, F.T., Smith, W.E., Sinclair, G., and Padgett, M.J. |
| Subjects: | Q Science > QC Physics |
| College/School: | College of Science and Engineering > School of Physics and Astronomy |
| Journal Name: | Optics Letters |
| Publisher: | Optical Society of America |
| ISSN: | 0146-9592 |
| ISSN (Online): | 1539-4794 |
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