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Communication Dans Un Congrès Année : 2017

On-chip photonic tweezers for photonics, microfluidics, and biology

Takashige Omatsu
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Christophe Pin
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Claude Renaut
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Jean-Baptiste Jager
Eric Delamadeleine
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Emmanuel Picard
Emmanuel Hadji
Frédérique de Fornel
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Benoit Cluzel
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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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Dates et versions

hal-01929945 , version 1 (21-11-2018)



Takashige Omatsu, Christophe Pin, Claude Renaut, Manon Tardif, Jean-Baptiste Jager, et al.. On-chip photonic tweezers for photonics, microfluidics, and biology. SPIE Technologies and Applications of Structured Light, Apr 2017, Yokohama, Japan. pp.1025212, ⟨10.1117/12.2275013⟩. ⟨hal-01929945⟩
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