A waveguide system, which is locally structured to form on-chip optofluidic hollow-core light cages, is presented as a novel platform for waveguide-assisted nanoparticle tracking analysis. The mode behavior within the novel light cage is analyzed via measurements as well as simulations with JCMsuite.
J. Kim, et al. Locally structured on-chip optofluidic hollow-core light cages for single nanoparticle tracking. ACS sensors 7, 2951 (2022).