O'Neil, A.T. and Padgett, M.J. (2002) Rotational control within optical tweezers by use of a rotating aperture. Optics Letters, 27(9), 743 -745.
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Publisher's URL: http://ol.osa.org/abstract.cfm?id=68765
Abstract
We demonstrate a simplified method of rotational control of objects trapped within optical tweezers that does not require high-order modes, interferometric precision, or computer-controlled optical modulators. Inserting a rectangular aperture into the optical beam results in a focused spot that also has rectangular symmetry. We show that an asymmetric object trapped in the beam has its angular orientation fixed such that rotation of the aperture results in a direct rotation of the particle.
| Item Type: | Articles |
|---|---|
| Status: | Published |
| Refereed: | Yes |
| Glasgow Author(s) Enlighten ID: | Padgett, Professor Miles |
| Authors: | O'Neil, A.T., 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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