Tag Archives: Metamaterials

Birefringent Nanocubes Give Light a Circular Boost

Posted on March 21, 2025 by rberkowitz

An achiral metasurface selectively transmits two beams of opposite chirality. Continue reading →

Posted in APS Physics | Tagged , , , | Leave a comment

A Versatile Design for a Metasurface Cavity

Posted on March 6, 2025 by rberkowitz

An all-dielectric version of a metamaterials-based cavity allows the cavity to operate over a previously inaccessible wavelength range—which could benefit lasers and other resonant devices. Continue reading →

Posted in APS Physics | Tagged , , , | Leave a comment

Programming a Crystal Defectwith Light

Posted on November 29, 2024 by rberkowitz

Forces imposed by laser light can manipulate the shape of a membrane’s vibrational modes. Continue reading →

Posted in APS Physics | Tagged , , , , , | Leave a comment

New Earplugs Won’t Amplify the Sound of Your Own Voice

Posted on May 29, 2024 by rberkowitz

Wearing earplugs, hearing aids and earphones can make your own voice sound booming, but a new design dampens the din. Continue reading →

Posted in Scientific American | Tagged , , | Leave a comment

Ping-Pong Ball Insulators Can Block Noise

Posted on December 19, 2023 by rberkowitz

Researchers harness acoustics principles to seal out noise pollution. Continue reading →

Posted in Scientific American | Tagged , , | Leave a comment

Machine-Learning Tool Solves Metamaterial Jigsaw

Posted on November 2, 2022 by rberkowitz

A new tool can determine whether a collection of building blocks will
assemble into a mechanically sound structure. Continue reading →

Posted in APS Physics | Tagged , , , | Leave a comment

Acoustic metasurface creates quiet locations in a room

Posted on August 1, 2018 by rberkowitz

With its tunable panels, the specially designed surface can sculpt soundscapes on the fly. Continue reading →

Posted in Physics Today | Tagged , , | Leave a comment

Quieting a room with metamaterial wall panels

Posted on June 21, 2018 by rberkowitz

Specially designed surface sculpts sound waves in a room. Continue reading →

Posted in Physics Today | Tagged , , , | Leave a comment

Making Shear Waves for Ultrasonic Imaging

Posted on May 19, 2017 by rberkowitz

New filter allows shear waves to be produced efficiently, which could lead to higher resolution ultrasound images. Read more in Continue reading →

Posted in APS Physics | Tagged , , , , | Leave a comment

Outsmarting Thermodynamics in Self-assembly of Nanostructures

Posted on November 3, 2014 by rberkowitz

Berkeley Lab reports method for symmetry-breaking in feedback-driven self-assembly of optical metamaterials Continue reading →

Posted in Berkeley Lab | Tagged , , , | Leave a comment