Position clamping of optically trapped microscopic non-spherical probes

DB Phillips, SH Simpson, JA Grieve, GM gibson, R Bowman, MJ Padgett, MJ Miles, DM Carberry

Research output: Contribution to journalArticle (Academic Journal)peer-review

29 Citations (Scopus)

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.
Translated title of the contributionPosition clamping of optically trapped microscopic non-spherical probes
Original languageEnglish
Pages (from-to)20622 - 20627
JournalOptics Express
Volume19
Publication statusPublished - 2011

Bibliographical note

Publisher: Optical Society of America

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