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Proceedings Paper

Integrated on-chip lens applied to microfluidic chips
Author(s): Yingying Zhao; Qin Li; Xiao-Ming Hu; Dong-Fang Yang
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Paper Abstract

The optical signal on microfluidic chip is hard to be collected. To improve the excitation power and collection efficiency, we introduced a simple, inexpensive fabrication method to increase the couple rate of optical fiber. This small element is a polymer and air integrated microlens that can improve the optical signal detection. Compared to other established protocols, this procedure allows a simple, miniaturizing and inexpensive microlens fabrication with high reproducibility. The air microlens was produced by using direct lithograph of SU-8 resist to reduce the beam divergence of optical fiber. Owing to its ability to achieve customized microlens for specific applications, this technique can be used in a variety of applications, such as a blood cell counting system based on microfluidic chip.

Paper Details

Date Published: 11 December 2012
PDF: 8 pages
Proc. SPIE 8553, Optics in Health Care and Biomedical Optics V, 855304 (11 December 2012); doi: 10.1117/12.2000689
Show Author Affiliations
Yingying Zhao, Beijing Institute of Technology (China)
Qin Li, Beijing Institute of Technology (China)
Xiao-Ming Hu, Beijing Institute of Technology (China)
Dong-Fang Yang, Beijing Institute of Technology (China)

Published in SPIE Proceedings Vol. 8553:
Optics in Health Care and Biomedical Optics V
Qingming Luo; Ying Gu; Xingde D. Li, Editor(s)

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