Title :
Nano-sensing with a silica microtoroid
Author :
Lu, Tao ; Lee, Hansuek ; Chen, Tong ; Herchak, Steven ; Kim, Ji-Hun ; Vahala, Kerry
Author_Institution :
Appl. Phys., California Inst. of Technol., Pasadena, CA, USA
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.
Keywords :
micro-optics; microcavities; nanoparticles; nanosensors; Influenza-A virion binding events; nanosensing; reference interferometer; silica microtoroid; single polystyrene nanobeads; Laser modes; Measurement by laser beam; Monitoring; Optical interferometry; Probes; Voltage measurement; Wavelength measurement;
Conference_Titel :
Lasers and Electro-Optics (CLEO), 2011 Conference on
Conference_Location :
Baltimore, MD
Print_ISBN :
978-1-4577-1223-4
