A SINGLE DROPLET CARRIER WITH OPTICAL DETECTOR

This paper presents a single multiphase droplet carrier with optical detector in microchannel.The system consists of a T-junction for oil droplets generation and a optical fiber taper to couple light into the droplet and Whispering Gallery modes (WGMs) out of the droplet. The droplets have functions as micro carriers and optical resontors, and have diameters ranging from 20 µm to 50 µm. The single droplet can carry and detect small volume of biological and chemical materials, which shows promise in many applications for real time chemistry analysis and environmental monitoring.