- Scientists at EPFL create “plasmacoustic metalayer” for advanced noise reduction.
- The plasma-based device absorbs 100% of incoming sound intensity without reflection.
- Remarkably, the plasma layer is only 17 mm thick, revolutionizing noise reduction techniques.
Scientists from EPFL have developed an innovative device called the “plasmacoustic metalayer” that surpasses conventional methods of noise reduction. Utilizing plasma, this device exhibits superior control over sound waves compared to traditional membrane-based tools.
The plasma transducer, despite its compact size, demonstrates remarkable efficiency. It is capable of absorbing 100% of incoming sound intensity without any reflective effects, effectively eliminating noise rather than merely reducing it.
What sets this technology apart is the fact that a plasma layer as thin as 17 mm is sufficient to cancel out audible sound at 20 Hz. In contrast, other noise reduction techniques typically require much thicker materials. This groundbreaking advancement holds the potential to revolutionize the approach to addressing noise-related challenges.
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