dc.contributor.author	Maimaiti, Aili
dc.contributor.author	Holzmann, Daniela
dc.contributor.author	Truong, Viet Giang
dc.contributor.author	Ritsch, Helmut
dc.contributor.author	Nic Chormaic, Síle
dc.contributor.funder	Okinawa Institute of Science and Technology Graduate University
dc.contributor.funder	Austrian Science Fund
dc.contributor.funder	European Cooperation in Science and Technology
dc.date.accessioned	2017-06-22T13:55:53Z
dc.date.available	2017-06-22T13:55:53Z
dc.date.issued	2016-07-25
dc.description.abstract	Particles trapped in the evanescent field of an ultrathin optical fibre interact over very long distances via multiple scattering of the fibre-guided fields. In ultrathin fibres that support higher order modes, these interactions are stronger and exhibit qualitatively new behaviour due to the coupling of different fibre modes, which have different propagation wave-vectors, by the particles. Here, we study one dimensional longitudinal optical binding interactions of chains of 3 μm polystyrene spheres under the influence of the evanescent fields of a two-mode microfibre. The observation of long-range interactions, self-ordering and speed variation of particle chains reveals strong optical binding effects between the particles that can be modelled well by a tritter scattering-matrix approach. The optical forces, optical binding interactions and the velocity of bounded particle chains are calculated using this method. Results show good agreement with finite element numerical simulations. Experimental data and theoretical analysis show that higher order modes in a microfibre offer a promising method to not only obtain stable, multiple particle trapping or faster particle propulsion speeds, but that they also allow for better control over each individual trapped object in particle ensembles near the microfibre surface.	en
dc.description.sponsorship	Austrian Science Fund (SFB Foqus Project F4013); COST (Action MP1403).	en
dc.description.status	Peer reviewed	en
dc.description.version	Published Version	en
dc.format.mimetype	application/pdf	en
dc.identifier.articleid	30131
dc.identifier.citation	Maimaiti, A., Holzmann, D., Truong, V. G., Ritsch, H. and Nic Chormaic, S. (2016) 'Nonlinear force dependence on optically bound micro-particle arrays in the evanescent fields of fundamental and higher order microfibre modes', Scientific Reports, 6, 30131 (10pp). doi:	en
dc.identifier.doi	10.1038/srep30131
dc.identifier.endpage	10
dc.identifier.issn	2045-2322
dc.identifier.journaltitle	Scientific Reports	en
dc.identifier.startpage	1
dc.identifier.uri	https://hdl.handle.net/10468/4165
dc.identifier.volume	6
dc.language.iso	en	en
dc.publisher	Nature Publishing Group	en
dc.relation.uri	https://www.nature.com/articles/srep30131
dc.rights	© 2016, Maimaiti, A. et al. This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/	en
dc.rights.uri	https://creativecommons.org/licenses/by/4.0/	en
dc.subject	Optical manipulation and tweezers	en
dc.subject	Optical physics	en
dc.title	Nonlinear force dependence on optically bound micro-particle arrays in the evanescent fields of fundamental and higher order microfibre modes	en
dc.type	Article (peer-reviewed)	en

Nonlinear force dependence on optically bound micro-particle arrays in the evanescent fields of fundamental and higher order microfibre modes

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