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Chip‐Scale Fabrication of High‐ Q All‐Glass Toroidal Microresonators for Single‐Particle Label‐Free Imaging
Author(s) -
Knapper Kassandra A.,
Heylman Kevin D.,
Horak Erik H.,
Goldsmith Randall H.
Publication year - 2016
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201504976
Subject(s) - fabrication , scalability , materials science , whispering gallery wave , nanotechnology , particle (ecology) , limit (mathematics) , scale (ratio) , computer science , optoelectronics , physics , resonator , database , medicine , oceanography , alternative medicine , pathology , quantum mechanics , geology , mathematical analysis , mathematics
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.