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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Vol. 25, Iss. 13 — Jul. 1, 2000
  • pp: 975–977

Characterization of a polymer microlens fabricated by use of the hydrophobic effect

Daniel M. Hartmann, Osman Kibar, and Sadik C. Esener  »View Author Affiliations


Optics Letters, Vol. 25, Issue 13, pp. 975-977 (2000)
http://dx.doi.org/10.1364/OL.25.000975


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Abstract

We report a means of fabricating hydrophilic domains in a hydrophobic background by lithographically patterning an adhesive hydrophobic layer. Polymer microlenses were fabricated on these substrates by use of a dip-coating technique. Various lens shapes (circular, elliptical, square) were fabricated on a variety of substrates (SiO2, SiN, GaAs, InP, etc.), ranging in size from 2 to 500 µm in diameter, with fill factors of up to 90%. Plano–convex and double-convex lenses were fabricated, with f-numbers as low as 1.38 and 1.2, respectively. Optimum lens surfaces deviated from spherical by just ±5 nm . The lenses are stable at room temperature and exhibit minimal degradation after 24 h at 105 °C. The transfer of these polymer lenses to an underlying substrate was also demonstrated.

© 2000 Optical Society of America

OCIS Codes
(160.5470) Materials : Polymers
(220.3620) Optical design and fabrication : Lens system design
(220.4000) Optical design and fabrication : Microstructure fabrication

Citation
Daniel M. Hartmann, Osman Kibar, and Sadik C. Esener, "Characterization of a polymer microlens fabricated by use of the hydrophobic effect," Opt. Lett. 25, 975-977 (2000)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-25-13-975

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