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Updated: Jul 3, 2026

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PDMS embedded opto-fluidic microring resonator lasers.

Jonathan D Suter1, Yuze Sun, Daniel J Howard

  • 1Biological Engineering Department, 240D Bond Life Sciences Center, University of Missouri, Columbia, MO 65211, USA.

Optics Express
|July 9, 2008
PubMed
Summary

Opto-fluidic ring resonator (OFRR) dye lasers in PDMS offer improved portability and stability. This work demonstrates their potential for micro-total analysis systems with efficient light output and multi-color capabilities.

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Area of Science:

  • Photonics
  • Microfluidics
  • Materials Science

Background:

  • Opto-fluidic ring resonator (OFRR) dye lasers are crucial for miniaturized photonic systems.
  • Integration with microfluidics is key for developing micro-total analysis systems (µTAS).

Purpose of the Study:

  • To embed OFRR dye lasers in polydimethylsiloxane (PDMS) for enhanced portability and stability.
  • To demonstrate efficient light coupling and multi-color emission for µTAS applications.

Main Methods:

  • Embedding OFRR dye lasers within a low-index PDMS matrix.
  • Utilizing fiber prisms and tapered optical fibers for directional light output coupling.
  • Fabricating microarray structures of parallel OFRRs.

Main Results:

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  • OFRRs in PDMS maintained high Q-factors (> 10^6) and low lasing thresholds (< 1 µJ/mm²).
  • Achieved 50% power extraction efficiency with 80 nW output at 2.2 µJ/mm² pump intensity.
  • Demonstrated simultaneous multi-color emissions from a microarray of OFRRs.

Conclusions:

  • PDMS embedding enhances OFRR dye lasers' portability and mechanical stability.
  • The developed OFRR lasers are suitable for integration into microfluidic systems for µTAS.
  • The technology enables efficient light extraction and multi-color laser emission for advanced photonic applications.