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Fabrication of surface plasmon waveguides and devices in Cytop with integrated microfluidic channels

Author:
Chiu, Charles   Lisicka-Skrzek, Ewa   Tait, R. Niall   Berini, Pierre  


Journal:
Journal of Vacuum Science & Technology B: Microelectronics and Nanometer Structures


Issue Date:
2010


Abstract(summary):

Long range surface plasmon-polariton waveguides and devices suitable for biosensing were fabricated and characterized physically and optically. The structures consist of thin (similar to 35 nm) patterned Au stripes embedded in thick Cytop claddings (similar to 8 mu m each). Portions of Au stripes were exposed by patterning and etching though the top Cytop cladding using an O(2) plasma etch. The etched Cytop cavities act as microfluidic channels to contain and direct the sensing fluid. Intermediate process steps were verified through physical characterization as were fully fabricated structures. Optical testing was performed on Cytop-embedded structures and on channel-filled (with sensing fluid) structures. The structures were excited through end-fire coupling to optical fibers. (C) 2010 American Vacuum Society. [DOI: 10.1116/1.3449187]


Page:
729---735


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