Abstract
We describe the design and operation of a liquid-core liquid-cladding (L2) lens formed by the laminar flow of three streams of liquids in a microchannel whose width expands laterally in the region where the lens forms. Two streams of liquid with a lower refractive index (the cladding) sandwich a stream of liquid with a higher refractive index (the core). As the core stream enters the expansion chamber, it widens and becomes biconvex in shape, for some rates of flow. This biconvex fluidic element focuses light. Manipulating the relative rates of flow of the streams reconfigures the shape, and therefore the focal distance, of the L2 lens.
© 2008 Optical Society of America
PDF ArticleMore Like This
Daniel B. Wolfe, Richard S. Conroy, Piotr Garstecki, Brian T. Mayers, Dmitri V. Vesenov, Michael A. Fischbach, Kateri E. Paul, Mara Prentiss, and George M. Whitesides
CThI1 Conference on Lasers and Electro-Optics (CLEO:S&I) 2005
Mekala Krishnan and David Erickson
CMDD6 CLEO: Science and Innovations (CLEO:S&I) 2011
Christian Karnutsch, Cameron L. C. Smith, Darran K. C. Wu, Snjezana Tomljenovic-Hanic, Michael W. Lee, Christelle Monat, Christian Grillet, Ross McPhedran, Benjamin J. Eggleton, Darren Freeman, Steve Madden, and Barry Luther-Davies
CThJ7 Conference on Lasers and Electro-Optics (CLEO:S&I) 2008