An international team of researchers developed an acoustic metasurface-based holography technique, which they used to recreate the Mona Lisa.
The researchers used a deep neural network-based algorithm to customize the metasurface's antenna-like components.
Said Yue-Sheng Wang of China's Tianjin University, "A metasurface-based hologram works by precisely controlling the phase and amplitude of the waves interacting with the metasurface. As a result, the outgoing waves at each pixel exhibit a certain amplitude and phase, which results in the desired holographic image based on their interference."
As a proof of concept, the researchers used the technique to reconstruct the Mona Lisa, and to recreate her left eye in great detail.
From AIP Publishing
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