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Kimberly S Reichel^1,2, Nicolas Lozada-Smith¹, Ishan D Joshipura³

¹School of Engineering, Brown University, Providence, RI, 02912, USA.

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|October 12, 2018

Summary

Researchers developed novel terahertz (THz) devices using liquid metal components for active beam manipulation. These electrically controlled switches and filters enable reconfigurable THz signal processing for advanced communication systems.

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Area of Science:

Terahertz (THz) technology
Optoelectronics
Metamaterials

Background:

Active manipulation of free-space terahertz (THz) beams is crucial for many applications.
Existing THz signal processing devices often lack electrical control and reconfigurability.
Novel approaches are needed for active and reconfigurable THz devices.

Purpose of the Study:

To introduce a new platform for active and reconfigurable THz devices.
To demonstrate the control of THz spectral content, wavefronts, polarization, and power flow.
To showcase the potential of liquid metal integration in THz waveguides.

Main Methods:

Integration of electrically actuated liquid metal components within THz waveguides.
Development of an active power-splitting switch.
Fabrication of a channel add-drop filter.

Main Results:

Demonstrated the first active power-splitting switch for THz signals.
Showcased the first channel add-drop filter for THz signals.
Confirmed electrical switching of THz communication signals with preserved information in high bit-rate data streams.

Conclusions:

Electrically actuated liquid metal components offer a versatile platform for THz device control.
The developed devices enable active and reconfigurable THz signal processing.
This approach facilitates the advancement of THz communication systems.