Nano-sensing with a Silica Microtoroid

Tao Lu; Tao Lu; Hansuek Lee; Tong Chen; Steven Herchak; Ji-Hun Kim; Kerry Vahala

doi:10.1364/CLEO_SI.2011.CTuM2

CLEO:2011 - Laser Applications to Photonic Applications
OSA Technical Digest (CD) (Optica Publishing Group, 2011),
paper CTuM2
•https://doi.org/10.1364/CLEO_SI.2011.CTuM2

Nano-sensing with a Silica Microtoroid

Tao Lu, Hansuek Lee, Tong Chen, Steven Herchak, Ji-Hun Kim, and Kerry Vahala

CLEO: Science and Innovations 2011

Baltimore, Maryland United States
1–6 May 2011
ISBN: 978-1-55752-910-7

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Optofluidic Detection and Imaging (CTuM)

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T. Lu, H. Lee, T. Chen, S. Herchak, J. Kim, and K. Vahala, "Nano-sensing with a Silica Microtoroid," in CLEO:2011 - Laser Applications to Photonic Applications, OSA Technical Digest (CD) (Optica Publishing Group, 2011), paper CTuM2.

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Abstract

We report nano-detection using a silica microtoroid with a reference interferometer. Single polystyrene nano-beads at a record 12.5nm radius are detected; Influenza-A virion binding events with signal-to-noise ratio exceeding 38:1 are observed.

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