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Communication
Array Formation in Evanescent Waves
Article first published online: 27 DEC 2005
DOI: 10.1002/cphc.200500348
Copyright © 2006 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Additional Information
How to Cite
Mellor, C. D. and Bain, Colin. D. (2006), Array Formation in Evanescent Waves. ChemPhysChem, 7: 329–332. doi: 10.1002/cphc.200500348
Publication History
- Issue published online: 6 FEB 2006
- Article first published online: 27 DEC 2005
- Manuscript Revised: 25 OCT 2005
- Manuscript Received: 1 JUL 2005
- Abstract
- Article
- References
- Cited By
Keywords:
- arrays;
- colloids;
- optical binding;
- particles;
- polymers
A chessboard pattern: Polystyrene particles form arrays at the silica–water interface, trapped in the evanescent field of two counterpropagating laser beams (see figure; particle size: 460 nm). In the horizontal direction, the periodicity of the array is twice the spacing of the interference fringes of the laser beam. In the vertical direction, the periodicity depends on the particle diameter and the ionic strength, which affects the repulsive potential between the charged latices.