Novel whispering-gallery-type sensor for single nanoparticle detection
Monday, March 7, 2016 - 06:40
in Physics & Chemistry
Ultrasensitive detection of nanoscale particles has applications in important fields ranging from environmental monitoring to analysis of viral structures. However, it remains extremely difficult due to ultralow polarizability of small-sized, low-index particles. A team led by Professor Xiao Yun-Feng at Peking University, collaborated with Yonsei University of Republic of Korea, demonstrated experimentally that the dissipative interaction in a high-Q optical microcavity allows the detection of single nanoparticles. This work has been published in a recent issue of Physical Review Applied.