Nanoparticle detection and characterization using optical microresonators

Nanoparticle detection and characterization using optical microresonators

We discuss methods to characterize single nanoparticles simultaneously by polarisability, refractive index and mass using toroidal microresonators. A new technique to determine the refractive index via mode-splitting allows us to size the nanoparticles.

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Bibliographische Detailangaben
Hauptverfasser: Knittel, J., Swaim, J. D., Brawley, G., Taylor, M. A., Bowen, W. P.
Format: Tagungsbericht
Sprache:eng
Schlagworte:
Microcavities
Nanoparticles
Optical interferometry
Refractive index
Resonant frequency
Sensors
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Beschreibung
Zusammenfassung:We discuss methods to characterize single nanoparticles simultaneously by polarisability, refractive index and mass using toroidal microresonators. A new technique to determine the refractive index via mode-splitting allows us to size the nanoparticles.
DOI:10.1109/IQEC-CLEO.2011.6193921