Volume 53, Issue 11 pp. 2583-2586

Formation of bowtie-shaped excitation in a photonic–microfluidic integrated devices

Benjamin R. Watts

Benjamin R. Watts

Department of Engineering Physics, McMaster University, 1280 Main Street West, Hamilton, ON, Canada L8S 4L7

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Thomas Kowpak

Thomas Kowpak

Department of Chemical Engineering, McMaster University, 1280 Main Street West, Hamilton, ON, Canada L8S 4L7

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Zhiyi Zhang

Corresponding Author

Zhiyi Zhang

Institute for Microstructural Sciences, National Research Council of Canada, 1200 Montreal Road, Ottawa, ON, Canada K1A 0R6

Zhiyi Zhang, Institute for Microstructural Sciences, National Research Council of Canada, 1200 Montreal Road, Ottawa, ON, Canada K1A 0R6

Chang-Qing Xu, Department of Engineering Physics, McMaster University, 1280 Main Street West, Hamilton, ON, Canada L8S 4L7

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Chang-Qing Xu

Corresponding Author

Chang-Qing Xu

Department of Engineering Physics, McMaster University, 1280 Main Street West, Hamilton, ON, Canada L8S 4L7

Zhiyi Zhang, Institute for Microstructural Sciences, National Research Council of Canada, 1200 Montreal Road, Ottawa, ON, Canada K1A 0R6

Chang-Qing Xu, Department of Engineering Physics, McMaster University, 1280 Main Street West, Hamilton, ON, Canada L8S 4L7

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Shiping Zhu

Shiping Zhu

Department of Chemical Engineering, McMaster University, 1280 Main Street West, Hamilton, ON, Canada L8S 4L7

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First published: 19 August 2011
Citations: 2

Abstract

Narrowly confining the beam intensity in a well-defined region in the center of cell flow is a necessary step to perform reliable flow cytometry testing but has so far not been achieved in a photonic–microfluidic integrated device.We were able to focus the excitation beam to a very narrow bowtie shape with a near uniform intensity across the flow stream for excitation for a flow cytometry application. Beam geometry was achieved by integrating a one-dimensional lens system with planar waveguides and a microfluidic channel on one substrate using one patterning material via a one-shot process. This letter reports the method used to achieve such shaped beams and the performance of the shaped beams. © 2011 National Research Council Canada & Wiley Periodicals, Inc. Microwave Opt Technol Lett 53:2583–2586, 2011; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.26309

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