Integration of polystyrene microlenses with both convex and concave profiles in a polymer-based microfluidic system

Yiqiang Fan, Huawei Li, Ian G. Foulds

Research output: Contribution to journalArticlepeer-review

Abstract

This paper reports a new technique of fabricating polystyrene microlenses with both convex and concave profiles that are integrated in polymer-based microfluidic system. The polystyrene microlenses, or microlens array, are fabricated using the free-surface thermal compression molding method. The laser fabricated poly(methyl methacrylate) (PMMA) sheet is used as the mold for the thermal compression molding process. With different surface treatment methods of the PMMA mold, microlenses with either convex or concave profiles could be achieved during the thermal molding process. By integrating the microlenses in the microfluidic systems, observing the flow inside the microchannels is easier. This new technique is rapid, low cost, and it does not require cleanroom facilities. Microlenses with both convex and concave profiles can be easily fabricated and integrated in microfluidic system with this technique. © 2013 Springer-Verlag Berlin Heidelberg.
Original languageEnglish (US)
Pages (from-to)815-819
Number of pages5
JournalMicrosystem Technologies
Volume20
Issue number4-5
DOIs
StatePublished - Dec 20 2013

ASJC Scopus subject areas

  • Hardware and Architecture
  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering
  • Condensed Matter Physics

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