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Researchers from Jiao Tong University discovered that optical moiré lattices can produce solitons — self-trapped solitary waves — at extremely low power levels. The research establishes potential to explore nonlinear phenomena such as four-wave mixing and second-harmonic generation.
The research stems from an earlier discovery in Fangwei Ye’s lab, in which his team discovered a way to stop the spreading of light and localize a laser into a tight spot using moiré lattices. The current work is an extension of the discovery; it excites the light in moiré lattices into self-sustaining soliton pulses. Solitons retain their shape as they propagate over long distances, which makes them important to…READ MORE