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Using Affordable LED Arrays for Photo-Stimulation of Neurons

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Published on: November 15, 2011

Modulation of Nanowire Emitter Arrays Using Micro-LED Technology.

Zhongyi Xia¹, Dimitars Jevtics¹, Benoit Jack Eloi Guilhabert¹

¹Institute of Photonics, Department of Physics, University of Strathclyde, Glasgow G1 1RD Scotland, U.K.

|April 17, 2025

Summary

This summary is machine-generated.

Researchers developed a scalable platform using micro-light-emitting diodes (micro-LEDs) on CMOS arrays to individually control nanowire emitters. This breakthrough enables parallel operation for future large-scale photonic integrated circuits.

Keywords:

Nanophotonics Nanowires Transfer-Printing micro-LEDs

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Area of Science:

Nanophotonics
Integrated Optics
Semiconductor Devices

Background:

Scalable and efficient excitation of nanophotonic emitters is crucial for advanced integrated photonic circuits.
Current methods often lack the precision and scalability required for complex systems.

Purpose of the Study:

To present a novel, scalable excitation platform for nanophotonic emitters.
To demonstrate precise, individually addressable control of infrared emitters integrated into optical waveguides.

Main Methods:

Heterogeneous integration of semiconductor nanowires onto micro-light-emitting diode (micro-LED) on CMOS arrays using transfer printing.
Deterministic assembly of emitters within polymer optical waveguides.
Optical pumping and modulation measurements of the integrated emitters.

Main Results:

High yield and positional accuracy in assembling waveguide-coupled nanowire infrared emitters.
Demonstrated direct optical pumping of emitters using micro-LED pixels.
Achieved optical modulation (on-off keying) up to 150 MHz.
Showcased individual control of multiple emitters in parallel using a micro-LED-on-CMOS array.

Conclusions:

The developed micro-LED-on-CMOS platform offers a scalable solution for addressing nanophotonic emitters.
This technology paves the way for large-scale, parallel-controlled photonic integrated circuits.
Enables precise optical control and modulation of integrated infrared emitters.