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Reconfigurable Microfluidic Channel with Pin-discretized Sidewalls

Reconfigurable Microfluidic Channel with Pin-discretized Sidewalls

Published on: April 12, 2018

Flexible optofluidic waveguide platform with multi-dimensional reconfigurability.

Joshua W Parks¹, Holger Schmidt¹

¹School of Engineering, University of CA Santa Cruz, 1156 High Street, Santa Cruz, CA 95064 USA.

Scientific Reports

|September 7, 2016

Summary

This summary is machine-generated.

This study presents a novel optofluidic platform combining solid- and liquid-core waveguides for dynamic optical tuning and high-performance microfluidic handling. It features a unique lightvalve for reconfigurable light and fluid paths, enabling advanced particle analysis.

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Area of Science:

Optofluidics
Microfluidics
Photonics

Background:

Dynamic reconfiguration of photonic function is key in optofluidics.
Existing microfluidic devices lack simultaneous high-performance fluid handling and dynamic optical tuning.

Purpose of the Study:

Introduce a novel optofluidic platform enabling simultaneous microfluidic fluid handling and dynamic optical tuning.
Develop a device architecture for mechanically reconfigurable light and fluid paths.

Main Methods:

Utilized a combination of solid- and liquid-core polydimethylsiloxane (PDMS) waveguides.
Engineered a liquid-core multimode interference waveguide for tunable properties via core liquids and pressure/deformation.
Developed a novel lifting-gate lightvalve acting as both a microvalve and optical waveguide.

Main Results:

Demonstrated an optical switch with an extinction ratio exceeding 45 dB.
Showcased an actuatable particle trap for analyzing biological micro- and nanoparticles.
Achieved mechanically reconfigurable light and fluid paths.

Conclusions:

The developed platform integrates high-performance microfluidic handling with dynamic optical tuning.
The novel lightvalve enables precise control over light and fluid paths for particle analysis.
This architecture advances the capabilities of optofluidic devices for complex applications.