Position clamping of optically trapped microscopic non-spherical probes

Phillips, D., Simpson, S.H., Grieve, J.A., Gibson, G.M., Bowman, R., Padgett, M.J. , Miles, M.J. and Carberry, D.M. (2011) Position clamping of optically trapped microscopic non-spherical probes. Optics Express, 19(21), pp. 20622-20627. (doi:10.1364/OE.19.020622)

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Publisher's URL: http://dx.doi.org/10.1364/OE.19.020622

Abstract

We investigate the degree of control that can be exercised over an optically trapped microscopic non-spherical force probe. By position clamping translational and rotational modes in different ways, we are able to dramatically improve the position resolution of our probe with no reduction in sensitivity. We also demonstrate control over rotational-translational coupling, and exhibit a mechanism whereby the average centre of rotation of the probe can be displaced away from its centre.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Phillips, Dr David and Bowman, Mr Richard and Padgett, Professor Miles
Authors: Phillips, D., Simpson, S.H., Grieve, J.A., Gibson, G.M., Bowman, R., Padgett, M.J., Miles, M.J., and Carberry, D.M.
College/School:College of Science and Engineering > School of Physics and Astronomy
Journal Name:Optics Express
Publisher:Optical Society of America
ISSN:1094-4087
Published Online:01 January 2011
Copyright Holders:Copyright © 2011 Optical Society of America
First Published:First published in Optics Express 19(21):20622-20627
Publisher Policy:Reproduced in accordance with the copyright policy of the publisher

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Project CodeAward NoProject NamePrincipal InvestigatorFunder's NameFunder RefLead Dept
542471Optical Atomic Force MicroscopyMiles PadgettEngineering & Physical Sciences Research Council (EPSRC)EP/I007822/1Physics and Astronomy