Reconfigurable Optics Based on Liquid-Liquid Interfaces
Prof. Sindy K. Y. Tang
Dept. of Mechanical Engineering, Stanford University
Abstract:
Optofluidics, a new class of optical devices with optical interfaces formed between two liquids, possess unique characteristics that are not achievable in conventional solid-state optical systems. In optofluidic systems, it is possible to reconfigure and fine-tune the optical output in real time by manipulating liquid composition or the shape of the liquid-liquid interface dynamically. In addition, liquid-liquid interfaces are intrinsically smooth as a result of minimization of interfacial energy. Polishing is thus unnecessary. Furthermore, it is straightforward to obtain a graded profile of refractive index by taking advantage of diffusion between miscible liquids possessing different refractive indices to create devices such as GRIN lenses. This talk focuses on the design and development of optical components based on dynamic liquid-liquid interfaces in microfluidic systems: liquid waveguides, lenses, and multi-color droplet dye lasers.
Sindy K.Y. Tang joined the faculty of Stanford University in September 2011 as an assistant professor in the Department of Mechanical Engineering. She received her B.S. degree in Electrical Engineering from California Institute of Technology in 2003, M.S. from Stanford University in 2004, and Ph.D. from Harvard University in Engineering Sciences in 2010. Dr. Tang’s research interests include optofluidics, microfluidics and nanophotonics for the development of tools for biology and smart materials.
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