title: Characterization of microdroplets using optofluidic signals.
abstract: We develop a simple method to determine the microdroplet features in a microfluidic chip fabricated by conventional soft lithography. Different sizes of microdroplets are generated through a typical microfluidic T-junction by adjusting the flow rates of the two immiscible liquids. Droplet size and content can be determined by monitoring the optofluidic signals reflected at the fluid-polydimethylsiloxane (PDMS) interface. The demonstrated droplet characterization system can be readily integrated with other microfluidic networks, making it promising for biochemical and biosensing applications.
authors.affiliation: Department of Physics, State Key Laboratory on Fiber Optic Local Area Communication Networks and Advanced Optical Communication Systems, Shanghai Jiao Tong University, Shanghai, 200240, China.
authors.forename: Zhenhua
authors.initials: Z
authors.lastname: Shen
authors.forename: Yun
authors.initials: Y
authors.lastname: Zou
authors.forename: Xianfeng
authors.initials: X
authors.lastname: Chen