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This study demonstrates a breakthrough in ultrafast optical modulation using a levitating silicon metasurface that eliminates signal-absorbing substrates like glass. By achieving switching speeds of one billion times per second via electrical or laser stimuli, the device offers significant potential for advancing optical computing and high-speed data transmission systems. The research highlights a novel approach to dynamic infrared control that could redefine the efficiency of future photonic circuits.
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Surse care acoperăQuantum Zeitgeist, LessWrong, Latent Space
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Physics reveals silicon film switches light a billion times per second
Quantum Zeitgeist3 min de cititArticolul și perspectiva sunt în engleză.
ITMO University physicists & international teams demonstrated a silicon metasurface switching light up to one billion times per second.
Researchers at ITMO University have created a silicon film capable of switching light up to a billion times per second. The device, an adjustable metasurface operating in the middle infrared range, offers a new approach to controlling radiation by eliminating traditional glass or sapphire substrates that weaken optical signals. Instead, the team fabricated a one-micrometer-thin, levitating silicon membrane; Mihail Petrov, a senior researcher at ITMO’s…
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