Integrated on-chip lens applied to microfluidic chips

Yingying Zhao, Qin Li*, Xiao Ming Hu, Dong Fang Yang

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

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.

Original languageEnglish
Title of host publicationOptics in Health Care and Biomedical Optics V
DOIs
Publication statusPublished - 2012
EventOptics in Health Care and Biomedical Optics V - Beijing, China
Duration: 5 Nov 20127 Nov 2012

Publication series

NameProgress in Biomedical Optics and Imaging - Proceedings of SPIE
Volume8553
ISSN (Print)1605-7422

Conference

ConferenceOptics in Health Care and Biomedical Optics V
Country/TerritoryChina
CityBeijing
Period5/11/127/11/12

Keywords

  • Couple Efficiency
  • Fabrication
  • Integrated Microlens
  • Microfluidic Chip
  • Optical Fiber

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