18 April 2017 On-chip photonic tweezers for photonics, microfluidics, and biology
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Proceedings Volume 10252, Optical Manipulation Conference; 1025212 (2017) https://doi.org/10.1117/12.2275013
Event: SPIE Technologies and Applications of Structured Light, 2017, Yokohama, Japan
Near-field optical forces arise from evanescent electromagnetic fields and can be advantageously used for on-chip optical trapping. In this work, we investigate how evanescent fields at the surface of photonic cavities can efficiently trap micro-objects such as polystyrene particles and bacteria. We study first the influence of trapped particle’s size on the trapping potential and introduce an original optofluidic near-field optical microscopy technique. Then we analyze the rotational motion of trapped clusters of microparticles and investigate their possible use as microfluidic micro-tools such as integrated micro-flow vane. Eventually, we demonstrate efficient on-chip optical trapping of various kinds of bacteria.
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Christophe Pin, Claude Renaut, Manon Tardif, Jean-Baptiste Jager, Eric Delamadeleine, Emmanuel Picard, David Peyrade, Emmanuel Hadji, Frédérique de Fornel, and Benoît Cluzel "On-chip photonic tweezers for photonics, microfluidics, and biology", Proc. SPIE 10252, Optical Manipulation Conference, 1025212 (18 April 2017); doi: 10.1117/12.2275013; https://doi.org/10.1117/12.2275013

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