Creating and probing of a perfect vortex in situ with an optically trapped particle
Abstract
We experimentally create a 'perfect' vortex beam, which has a uniform ring profile and fixed radius. In contrast with other vortex fields, the intensity profile is independent of its topological charge. We then correct this field in situ using a single trapped particle as a probe. This results in a constant angular velocity for the particle regardless of its position on the beam circumference.
Citation
Chen , M , Mazilu , M , Arita , Y , Wright , E M & Dholakia , K 2015 , ' Creating and probing of a perfect vortex in situ with an optically trapped particle ' Optical Review , vol 22 , no. 1 , pp. 162-165 . DOI: 10.1007/s10043-015-0031-7
Version
Postprint
Publication
Optical Review
Status
Peer reviewed
ISSN
1340-6000Type
Journal article
Rights
This work is made available online in accordance with the publisher’s policies. This is the author created, accepted version manuscript following peer review and may differ slightly from the final published version. The final publication is available at Springer via http://dx.doi.org/10.1007/s10043-015-0031-7
Description
The authors would like to thank the UK Engineering and Physical Sciences Research Council (EPSRC) for funding through grant EP/J01771X/1.
Items in the St Andrews Research Repository are protected by copyright, with all rights reserved, unless otherwise indicated.