Single-molecule detection sensitivity using planar integrated optics on a chip |
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Authors: | Yin Dongliang Deamer David W Schmidt Holger Barber John P Hawkins Aaron R |
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Institution: | School of Engineering, University of California Santa Cruz 95064, USA. |
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Abstract: | We present a fully planar integrated optical approach to single-molecule detection based on microfabricated planar networks of intersecting solid and liquid-core waveguides. We study fluorescence from dye molecules in liquid-core antiresonant reflecting optical waveguides, and demonstrate subpicoliter excitation volumes, parallel excitation through multiple pump waveguides, and single-molecule detection sensitivity. Integrated silicon photonics combined with single-molecule detection in solution create a compact, robust, and sensitive platform that has applications in numerous fields ranging from atomic physics to the life sciences. |
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