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Proceedings Paper

Use of tethering for axial confinement in optical tweezers
Author(s): Mark Cronin-Golomb
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Paper Abstract

Lambda DNA is used to tether polystyrene microspheres to an optical substrate, thus eliminating the need for high numerical aperture trapping lenses in single beam optical tweezers to provide axial trapping. The tethered particle may be used as a sensor probe to measure local viscosity and forces on the trapped particle such as those induced by fluid flow.

Paper Details

Date Published: 18 October 2004
PDF: 8 pages
Proc. SPIE 5514, Optical Trapping and Optical Micromanipulation, (18 October 2004); doi: 10.1117/12.558203
Show Author Affiliations
Mark Cronin-Golomb, Tufts Univ. (United States)

Published in SPIE Proceedings Vol. 5514:
Optical Trapping and Optical Micromanipulation
Kishan Dholakia; Gabriel C. Spalding, Editor(s)

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