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Metamaterials & Metasurfaces for Acoustic and/or Wireless Sensing
Over the past several years, we have embarked on an exciting journey to revolutionize acoustic silencing through the innovative design of acoustic metamaterials.
Traditional noise reduction methods, while effective, often compromise airflow and ventilation, which are crucial for many practical applications.
Previous attempts to address this issue with acoustic metamaterial-based structures have fallen short due to their lack of physical openness.
Determined to overcome these limitations, we have developed a groundbreaking class of ultra-open metamaterials (UOMs).
These UOMs boast radically open physical structures while maintaining exceptional acoustic silencing performance.
The UOM paradigm is highly scalable across various frequency regimes, with adaptable geometries suited for diverse implementation schemes to address a wide range of noise sources.
At the heart of our innovation is the achievement of an asymmetric acoustic transmission profile through Fano-like interference within a bilayer metamaterial.
This profile results from the acoustic interference between the inner 'open' region and the outer resonating waveguide of the UOM.
As sound waves traverse the UOM, they become out-of-phase, creating Fano-like destructive interference that can achieve zero transmittance.
Crucially, the UOM paradigm supports nearly wholly open geometries, a significant leap forward from current technologies.
The potential applications of the UOM technology platform are vast and varied, spanning industries such as aerospace, automotive, defense, HVAC, and architecture, where airflow and ventilation are paramount to system performance.
Our ongoing efforts at LMST are focused on evolving and generalizing UOM principles to optimize a diverse set of tools to address a broad range of applications.
We are engaged in enhancing performance to include multi- and broadband, as well as tunable acoustic silencing.
Our innovative approach is not just a technical milestone; it's a transformative leap forward.
By providing effective noise control solutions without compromising airflow and ventilation, we are poised to revolutionize numerous industrial applications, paving the way for a quieter, more efficient, and harmonious future.