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A single-layer, planar, optofluidic switch powered by acoustically driven, oscillating microbubbles.

Po-Hsun Huang¹, Michael Ian Lapsley, Daniel Ahmed

¹Department of Engineering Science and Mechanics, The Pennsylvania State University, University Park, Pennsylvania 16802, USA.

Applied Physics Letters

|November 1, 2012

Summary

This summary is machine-generated.

Researchers developed a novel optofluidic switch using acoustically driven microbubbles. This simple, low-fluid-consumption device offers a cost-effective solution for lab-on-a-chip optical switching applications.

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Area of Science:

Photonics
Microfluidics
Acoustics

Background:

Optofluidic devices integrate optical elements with microfluidic channels.
Acoustofluidics utilizes sound waves for manipulating fluids and particles at the microscale.

Purpose of the Study:

To demonstrate a novel single-layer, planar optofluidic switch.
To utilize acoustically excited oscillating microbubbles as the driving mechanism for the switch.

Main Methods:

Integration of acoustofluidic mixing principles with optofluidic components.
Fabrication of a single-layer planar device.
Characterization of switching speed, insertion loss, and extinction ratio.

Main Results:

Achieved a switching speed of 5 Hz.
Measured an insertion loss of 6.02 dB.
Obtained an extinction ratio of 28.48 dB.

Conclusions:

The developed optofluidic switch is simple and requires low fluid consumption.
The design is compatible with existing microfluidic systems.
This technology offers potential for inexpensive and effective optical switches in lab-on-a-chip applications.