Letter pubs.acs.org/NanoLett
Ultrasensitive Diagnostic Analysis of Au Nanoparticles Optically Trapped in Silicon Photonic Circuits at Sub-Milliwatt Powers S. Hamed Mirsadeghi and Jeff F. Young* Department of Physics and Astronomy, Advanced Materials and Process Engineering Laboratory, University of British Columbia, Vancouver, British Columbia V6T 1Z4, Canada S Supporting Information *
ABSTRACT: Silicon microcavity-based optical trapping of Au nanoparticles with diameters as small as ≈24 nm is achieved using optical powers