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Laser-based microstructuring of surfaces using low-cost microlens arrays

[+] Author Affiliations
Daniel Nieto

Research Center for Electrochemical Technologies, Parque Tecnológico de San Sebastián P° Miramón, 196 20009 Donostia-San Sebastian, Spain

National University of Ireland, National Center for Laser Applications/Inspire Labs, School of Physics, University Road, Galway, Ireland

University of Santiago de Compostela, Micro-optics and GRIN optics group, Campus Vida, 15782, Spain

Gemma Vara

Research Center for Electrochemical Technologies, Parque Tecnológico de San Sebastián P° Miramón, 196 20009 Donostia-San Sebastian, Spain

Jose Antonio Diez

Research Center for Electrochemical Technologies, Parque Tecnológico de San Sebastián P° Miramón, 196 20009 Donostia-San Sebastian, Spain

Gerard M. O’Connor

National University of Ireland, National Center for Laser Applications/Inspire Labs, School of Physics, University Road, Galway, Ireland

Justo Arines

University of Santiago de Compostela, Applied Physics Department, Campus Vida, 15782, Spain

University of Zaragoza, Applied Physics Department, Zaragoza, 50009, Spain

Carlos Gómez-Reino

University of Santiago de Compostela, Micro-optics and GRIN optics group, Campus Vida, 15782, Spain

María Teresa Flores-Arias

University of Santiago de Compostela, Micro-optics and GRIN optics group, Campus Vida, 15782, Spain

J. Micro/Nanolith. MEMS MOEMS. 11(2), 023014 (Jun 20, 2012). doi:10.1117/1.JMM.11.2.023014
History: Received December 21, 2011; Revised April 17, 2012; Accepted May 11, 2012
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Abstract.  Since frictional interactions in microscopically small components are becoming increasingly important for the development of new products for all modern technology, we present a laser-based technique for micro-patterning surfaces of materials using low-cost microlens arrays. By combining a laser direct-write technique on soda-lime glass and a thermal treatment, it was possible to obtain high quality microlens array elements using a low cost infrared laser widely implemented in industry which makes this technique attractive in comparison with other more expensive methods. The main advantage of using microlens arrays for micropatterning surfaces is the possibility of fabricating a large number of identical structures simultaneously, leading to a highly efficient process. In order to study the capabilities of the microlenses fabricated for microstructuring materials, identical structures and arrays of holes were fabricated over a variety of materials, such as stainless steel, polymer, and ceramic. The minimum diameter of the individual microstructure generated at surface was 5 µm. Different nanosecond lasers operating at infrared and green wavelengths were used. The topography and morphology of the elements obtained were determined using confocal microscopy.

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© 2012 Society of Photo-Optical Instrumentation Engineers

Citation

Daniel Nieto ; Gemma Vara ; Jose Antonio Diez ; Gerard M. O’Connor ; Justo Arines, et al.
"Laser-based microstructuring of surfaces using low-cost microlens arrays", J. Micro/Nanolith. MEMS MOEMS. 11(2), 023014 (Jun 20, 2012). ; http://dx.doi.org/10.1117/1.JMM.11.2.023014


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