Journal
OPTICS LETTERS
Volume 33, Issue 16, Pages 1830-1832Publisher
OPTICAL SOC AMER
DOI: 10.1364/OL.33.001830
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Funding
- EPSRC [EP/E021611/1] Funding Source: UKRI
- Engineering and Physical Sciences Research Council [EP/E021611/1] Funding Source: researchfish
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When an optically trapped and bound micrometer-sized chain of particles is subjected to a suitably oriented secondary laser beam above a threshold level of intensity, the structure will collapse. The effect arises from modifications to the interparticle energy landscapes owing to the superposition of optically induced potentials. From the theory it also emerges that, for particles separated by near-field distances, optically induced assemblies may be continuously transformed between linear, spherical, and lamellar forms. The results show scope for the optical fabrication of moldable nanoscale structures. (c) 2008 Optical Society of America.
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