Speed enhancement of multi-particle chain in a traveling standing wave
Abstract
A moving array of optical traps created by interference of two counter-propagating evanescent waves has been used for delivery of particle chains up to 18 micro-particles long immersed in water. The particles were optically self-arranged into a linear chain with well-separated distances between them. We observed a significant increase in the delivery speed of the whole structure as the number of particles in the chain increased. This could provide faster sample delivery in microfluidic systems. We quantified the contributions to the speed enhancement caused by the optical and hydrodynamic interactions between the particles.
Citation
Siler , M , Cizmar , T & Zemanek , P 2012 , ' Speed enhancement of multi-particle chain in a traveling standing wave ' , Applied Physics Letters , vol. 100 , no. 5 , 051103 . https://doi.org/10.1063/1.3680234
Publication
Applied Physics Letters
Status
Peer reviewed
ISSN
0003-6951Type
Journal article
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