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

Optics Express
David C BenitoSimon Hanna

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 microm 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.

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Citations

Feb 15, 2015·Biomedical Microdevices·Álvaro BarrosoCornelia Denz
Sep 30, 2016·Scientific Reports·Shubo ChengShaohua Tao
Sep 4, 2009·Physical Chemistry Chemical Physics : PCCP·Jon B WillsJonathan P Reid
Sep 4, 2009·Nanotechnology·Stephen H Simpson, Simon Hanna
Apr 20, 2010·Advanced Materials·Kevin A ArpinPaul V Braun
Jan 19, 2011·Lab on a Chip·David EricksonSudeep Mandal
Sep 13, 2019·Optics Express·Michael J O'Brien, David G Grier
Aug 1, 2019·Particle & Particle Systems Characterization : Measurement and Description of Particle Properties and Behavior in Powders and Other Disperse Systems·Abhay Kotnala, Yuebing Zheng
Feb 6, 2018·ACS Nano·Jeffrey E Melzer, Euan McLeod

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