A team of researchers from the University of Toronto recently developed a new waveguide system that can dynamically control light signals. This could revolutionize how we use multiple light signals in the future. The new waveguide structure consists of two thin layers of material: a dielectric layer and a metallic layer. By controlling the voltage between the two layers, the researchers are able to control the phase and amplitude of the light signal that passes through the waveguide. This unprecedented control offers exciting possibilities for applications such as frequency combs, optical sensing, and communications. With this new technology, researchers may be able to realize applications that were previously impossible with existing waveguides.

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source: Phys.org