Single virus detection from the reactive shift of a whispering-gallery mode

By Frank Vollmer, S. Arnold, D. Keng. Proceedings of the National Academy of Sciences of the United States of America, 2008

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Whispering gallery mode sensors (2015, methodology): “[149,165], while a correlation-based analysis of resonance fluctuations was employed in Ref.”
The photonic integration of non-solid media using optofluidics (2011, methodology): “Similar resonance concepts, albeit with more integration difficulty, are used in OFRRs, microtoroid and microsphere resonator”
Ligand–receptor interaction platforms and their applications for drug discovery (2012, background): “The resonant recirculation of light within a microcavity allows the light to sample the analyte molecules many times [98-101].”
Detecting single viruses and nanoparticles using whispering gallery microlasers. (2011, background): “2 c) surpass the detection limits reported for passive microresonator”
Self -induced back-action optical trapping of dielectric nanoparticles (2009, methodology): “Evanescent whispering-gallery modes in microsphere resonators have also been used to trap and sense nanoparticles and viruses; however, in that configuration the particle moves around the circumference of the microsphere without being confined in three dimension”