Tailored polymer microlenses on treated glass surfaces

Integrating arrayed biosensors (biochips) or micro- and nanofluidic devices with readout systems is an important step towards their realization in lab-on-a-chip devices. To this end, we present a straightforward method of fabricating polymer microlenses in precise locations, with desired optical cha...

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Bibliographic Details
Published in:Applied physics letters 2007-05, Vol.90 (20), p.203106-203106-3
Main Authors: Sokuler, Mordechai, Aronov, Daniel, Rosenman, Gil, Gheber, Levi A.
Format: Article
Language:English
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Summary:Integrating arrayed biosensors (biochips) or micro- and nanofluidic devices with readout systems is an important step towards their realization in lab-on-a-chip devices. To this end, we present a straightforward method of fabricating polymer microlenses in precise locations, with desired optical characteristics, using a combination of two methods: surface energy tuning using low-energy electron irradiation, to control the numerical aperture, and time-controlled nanofountain pen deposition of polymer microlenses, to control the focal length. The authors demonstrate the tuning of focal length between 8 and 20 μ m with numerical apertures between 0.16 and 0.26.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.2739087