Title :
Reflection detection of nanoparticles using whispering gallery microresonators
Author :
Jiangang Zhu ; Ozdemir, Sahin Kaya ; Lan Yang
Author_Institution :
Electr. & Syst. Eng., Washington Univ., St. Louis, MO, USA
Abstract :
We report real time detection of individual nanoparticles down to R=20 nm using a high-Q whispering gallery mode (WGM) microresonator. The detection is based on resonance enhanced particle induced reflection and does not require monitoring resonance spectra.
Keywords :
light reflection; micro-optics; microsensors; nanoparticles; optical resonators; optical sensors; whispering gallery modes; WGM; high-Q whispering gallery mode microresonator; individual nanoparticles; nanoparticle reflection detection; radius 20 nm; real time detection; resonance enhanced particle induced reflection; resonance spectra; whispering gallery microresonator; Microcavities; Nanoparticles; Optical scattering; Optical sensors; Sensitivity;
Conference_Titel :
Lasers and Electro-Optics (CLEO), 2013 Conference on
Conference_Location :
San Jose, CA
