@inproceedings{ec8d3e19b0a54811b81e2b0d09a48888,
title = "On-chip single nanoparticle detection using ultra-high-Q whispering gallery microresonator",
abstract = "Whispering gallery mode (WGM) optical microcavities trap light in micro-scale volumes by continuous total internal reflection which leads to enhancement of light intensity within a confined region and longer photon lifetime. Consequently, light-matter interaction is enhanced making the WGM resonator an extremely sensitive platform for the detection of perturbations in and around the resonator. Here, we report mode-splitting in monolithic ultra-high-Q WGM microcavities for real-time and in-situ detection of single nanoparticles. We investigate experimentally and theoretically particle detection and sizing at single nanoparticle resolution using the mode-splitting technique. Theoretical calculations are in good agreement with the experimental results. The mode-splitting effect provides a 'self-reference sensing' technique that can overcome the limitations of current resonator-based sensors and in the meantime keep the advantages offered by resonant structures for high-performance sensing.",
keywords = "Microcavity, detection, mode splitting, optical gain, sensor, single nanoparticle, whispering-gallery mode",
author = "Lan Yang and Jiangang Zhu and Ozdemir, {Sahin Kaya} and Lina He and Yunfeng Xiao and Lin Li and Chen, {Da Ren}",
year = "2010",
doi = "10.1117/12.850662",
language = "English",
isbn = "9780819481467",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
booktitle = "Photonic Microdevices/Microstructures for Sensing II",
note = "Photonic Microdevices/Microstructures for Sensing II ; Conference date: 07-04-2010 Through 08-04-2010",
}