Graded-size microlens array by the pyro-electrohydrodynamic continuous printing method

Year: 2013

Authors: Grimaldi I.A., Coppola S., Loffredo F., Villani F., Nenna G., Minarini C., Vespini V., Miccio L., Grilli S., Ferraro P.

Autors Affiliation: ENEA-Portici Research Center, Piazzale Enrico Fermi 1, 80055 Portici (NA), Italy; CNR-Istituto Nazionale di Ottica, Via Campi Flegrei 34, 80078 Pozzuoli (NA), Italy; Universita Degli Studi di Napoli Federico II, Facolta di Ingegneria P.le Tecchio 80, 80125 Napoli, Italy

Abstract: In the present work, the pyro-electrohydrodynamic technique was used for the realization of tunable-size microlens arrays. Poly(methyl methacrylate) dissolved in different solvent mixtures was used as the polymeric material for the realization of the microstructures. By controlling the experimental parameters and in particular, the volume of the drop reservoir, graded-size square arrays of tens of microlenses with focal length in the range 1.5-3 mm were produced. Moreover, the optical quality and geometrical features were investigated by profilometric and interferometric analysis. (C) 2013 Optical Society of America

Journal/Review: APPLIED OPTICS

Volume: 52 (32)      Pages from: 7699  to: 7705

More Information: The financial support from L. P. P. TRIPODE Relight project PON02_00556_3306937 and the EFOR-CABIR CNR project is gratefully acknowledged.
DOI: 10.1364/AO.52.007699

Citations: 21
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