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Proceedings Paper

The role of spectral bandwidth in transverse optical binding
Author(s): Michael Mazilu; Andrew P. Rudhall; Ewan M. Wright; Kishan Dholakia
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Paper Abstract

Binding between optically co-trapped micro-particles occurs when the scattered optical fields are sufficient to com­ pete with the trapping forces. Such optical binding is seen as being pertinent to large-scale micro-manipulation due to the significant forces present within an optical trapping system comprising multiple micro-particles. One aspect of optical binding involves an inter-particle force relationship that is strongly dependent on optical fre­ quency. In our study we theoretically show that a broadened spectral content associated with frequency doubled broadband ultrashort pulses can result in spatial overlap of contained frequencies. The binding force oscillations are averaged out when sufficient spectral content is present within the pulse.

Paper Details

Date Published: 10 October 2012
PDF: 8 pages
Proc. SPIE 8458, Optical Trapping and Optical Micromanipulation IX, 84583D (10 October 2012); doi: 10.1117/12.930920
Show Author Affiliations
Michael Mazilu, Univ. of St. Andrews (United Kingdom)
Andrew P. Rudhall, Univ. of St. Andrews (United Kingdom)
Ewan M. Wright, College of Optical Sciences, The Univ. of Arizona (United States)
Univ. of St. Andrews (United Kingdom)
Kishan Dholakia, Univ. of St. Andrews (United Kingdom)
College of Optical Sciences, The Univ. of Arizona (United States)


Published in SPIE Proceedings Vol. 8458:
Optical Trapping and Optical Micromanipulation IX
Kishan Dholakia; Gabriel C. Spalding, Editor(s)

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