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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 15, Iss. 15 — Jul. 23, 2007
  • pp: 9877–9882

Arrays of microlenses with variable focal lengths fabricated by restructuring polymer surfaces with an ink-jet device

Ramon Pericet-Camara, Andreas Best, Sebastian K. Nett, Jochen S. Gutmann, and Elmar Bonaccurso  »View Author Affiliations

Optics Express, Vol. 15, Issue 15, pp. 9877-9882 (2007)

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We report of a method for fabricating two-dimensional, regular arrays of polymer microlenses with focal lengths variable between 0.2 and 4.5 mm. We first make concave microlenses by ink-jetting solvent on a polymer substrate with a commercial drop-on-demand device. Solvent evaporation restructures the surface by a series of combined effects, which are discussed. In the second step we obtain convex elastomeric microlenses by casting the template made in the first step. We demonstrate the good optical quality of the microlenses by characterising their surfaces with atomic force microscopy and white light interferometry, and by directly measuring their focal lengths with ad-hoc confocal laser scanning microscopy.

© 2007 Optical Society of America

OCIS Codes
(220.0220) Optical design and fabrication : Optical design and fabrication
(220.4000) Optical design and fabrication : Microstructure fabrication
(230.0230) Optical devices : Optical devices
(230.3990) Optical devices : Micro-optical devices

ToC Category:
Optical Design and Fabrication

Original Manuscript: April 30, 2007
Revised Manuscript: May 29, 2007
Manuscript Accepted: June 15, 2007
Published: July 20, 2007

Ramon Pericet-Camara, Andreas Best, Sebastian K. Nett, Jochen S. Gutmann, and Elmar Bonaccurso, "Arrays of microlenses with variable focal lengths fabricated by restructuring polymer surfaces with an ink-jet device," Opt. Express 15, 9877-9882 (2007)

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