Journal
OPTICS EXPRESS
Volume 16, Issue 11, Pages 8084-8093Publisher
OPTICAL SOC AMER
DOI: 10.1364/OE.16.008084
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Lens effect was obtained in an open microfluidic system by using a thin layer of liquid on a polar electric crystal like LiNbO3. An array of liquid micro-lenses was generated by electrowetting effect in pyroelectric periodically poled crystals. Compared to conventional electrowetting devices, the pyroelectric effect allowed to have an electrode-less and circuit-less configuration. An interferometric technique was used to characterize the curvature of the micro-lenses and the corresponding results are presented and discussed. The preliminary results concerning the imaging capability of the micro-lens array are also reported. (c) 2008 Optical Society of America.
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