2008/05/20 by Simonetta Grilli, Lisa Miccio, Veronica Vespini +3 · 1 citation
Engineering · Physics and Astronomy · #Electrowetting and Microfluidic Technologies #Photonic and Optical Devices #Photonic Crystals and Applications
paper · doi:10.1364/oe.16.008084
openalex publication_date 2008/05/20 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/02
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.