The investigation of a method for fabricating microlenses by a nozzle-free inkjet printing approach is reported. The new method, based on a pyroelectrohydrodynamic mechanism, is also able to dispense viscous liquids and to draw liquid phase drops directly from the reservoir. Specifically, by dispensing optical grade polymer dissolved in different solvent mixtures, microlenses were printed with a pattern defined directly through this deposition method. The reliability of the microlenses and the tunability of their focal properties were demonstrated through profilometric and inteferometric analyses.
© 2012 Optical Society of America
Original Manuscript: March 16, 2012
Revised Manuscript: April 29, 2012
Manuscript Accepted: April 29, 2012
Published: June 19, 2012
I. A. Grimaldi, S. Coppola, F. Loffredo, F. Villani, C. Minarini, V. Vespini, L. Miccio, S. Grilli, and P. Ferraro, "Printing of polymer microlenses by a pyroelectrohydrodynamic dispensing approach," Opt. Lett. 37, 2460-2462 (2012)