Chip-Scale Fabrication of High-Q All-Glass Toroidal Microresonators for Single-Particle Label-Free Imaging

Whispering‐gallery‐mode microresonators enable materials for single‐molecule label‐free detection and imaging because of their high sensitivity to their micro­environment. However, fabrication and materials challenges prevent scalability and limit functionality. All‐glass on‐chip microresonators sig...

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Bibliographic Details
Published in:Advanced materials (Weinheim) 2016-04, Vol.28 (15), p.2945-2950
Main Authors: Knapper, Kassandra A., Heylman, Kevin D., Horak, Erik H., Goldsmith, Randall H.
Format: Article
Language:English
Subjects:
Construction
Equipment Design
Glass
Imaging
label-free imaging
label-free sensing
Microtechnology - instrumentation
optical microcavities
optical microresonators
Platforms
Quality factor
single-particle sensing
Temperature
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Summary:Whispering‐gallery‐mode microresonators enable materials for single‐molecule label‐free detection and imaging because of their high sensitivity to their micro­environment. However, fabrication and materials challenges prevent scalability and limit functionality. All‐glass on‐chip microresonators significantly reduce these difficulties. Construction of all‐glass toroidal microresonators with high quality factor and low mode volume is reported and these are used as platforms for label‐free single‐particle imaging.
ISSN:0935-9648
1521-4095
DOI:10.1002/adma.201504976