Constructing 3D crystal templates for photonic band gap materials using holographic optical tweezers

Benito, D.C., Carberry, D.M., Simpson, S.H., Gibson, G.M., Padgett, M.J. , Rarity, J.G., Miles, M.J. and Hanna, S. (2008) Constructing 3D crystal templates for photonic band gap materials using holographic optical tweezers. Optics Express, 16(17), pp. 13005-13015. (doi:10.1364/OE.16.013005)

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Abstract

A simple and robust method is presented for the construction of 3-dimensional crystals from silica and polystyrene microspheres. The crystals are suitable for use as templates in the production of three-dimensional photonic band gap (PBG) materials. Manipulation of the microspheres was achieved using a dynamic holographic assembler (DHA) consisting of computer controlled holographic optical tweezers. Attachment of the microspheres was achieved by adjusting their colloidal interactions during assembly. The method is demonstrated by constructing a variety of 3-dimensional crystals using spheres ranging in size from 3 µm down to 800 nm. A major advantage of the technique is that it may be used to build structures that cannot be made using self-assembly. This is illustrated through the construction of crystals in which line defects have been deliberately included, and by building simple cubic structures.

Item Type:Articles
Additional Information:This paper was published in Optics Express and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: http://dx.doi.org/10.1364/OE.16.013005. Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law.
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Padgett, Professor Miles
Authors: Benito, D.C., Carberry, D.M., Simpson, S.H., Gibson, G.M., Padgett, M.J., Rarity, J.G., Miles, M.J., and Hanna, S.
College/School:College of Science and Engineering > School of Physics and Astronomy
Journal Name:Optics Express
Publisher:Optical Society of America
ISSN:1094-4087
ISSN (Online):1094-4087
Copyright Holders:Copyright © 2008 Optical Society of America
First Published:First published in Optics Express 16(17):13005-13015
Publisher Policy:Reproduced in accordance with the copyright policy of the publisher

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