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Monday, December 21, 2009

Multi-mode mitigation in an optofluidic chip for particle manipulation and sensing

Philip Measor, Sergei Kühn, Evan J. Lunt, Brian S. Phillips, Aaron R. Hawkins, andHolger Schmidt

A new waveguide design for an optofluidic chip is presented. It mitigates multi-mode behavior in solid and liquid-core waveguides by increasing fundamental mode coupling to 82% and 95%, respectively. Additionally, we demonstrate a six-fold improvement in lateral confinement of optically guided dielectric microparticles and double the detection efficiency of fluorescent particles.

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