reminder: seminar 4-5 in Allen 101X TODAY: Prof. Sindy Tang, ME Dept.
Roger T. Howe
rthowe at stanford.edu
Mon Nov 7 06:59:44 PST 2011
Hope to see you there -- Roger
Reconfigurable Optics Based on Liquid-Liquid Interfaces
Prof. Sindy K. Y. Tang
Dept. of Mechanical Engineering, Stanford University
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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