Metamaterials

30 Aug 23

Photons Crash Into Each Other—on a Time Mirror

Electrical, Electronics & Instrumentation

Usually, electromagnetic waves pass through each other unseen and undisturbed. Getting light beams to notice each other is no easy task. Typically, scientists must coax them into interacting with one another via complex materials. Now, physicists at the City University of New York (CUNY) Advanced Science Research Center have designed…

09 Jun 23

Tiny, Metamaterial Lens Snaps Outsized Images

Electrical, Electronics & Instrumentation

Using the kind of light-warping physics that make “invisibility cloaks” possible, scientists have developed a small, lightweight camera that can take photos as good as or better than commercial digital cameras more than 100 times larger in volume, for potential use in smartphones and other portable devices, a new study…

07 Apr 23

Holograms Supercharge Nanoscale 3D Printing

Electrical, Electronics & Instrumentation, Metallurgy & Material Science

Using holograms, a nanoscale 3D printer can now rapidly fabricate complex items with details smaller than a wavelength of visible light, a new study finds. This research can rapidly manufacture nanotechnological arrays of wires, lenses, rotating magnetic gears, and other structures—suggesting applications in electronics, photonics, microrobotics and more.Currently, the most…

23 Feb 23

Ultrafast Terahertz Tech Via Electronic Metadevices

Computer & Information Technology

Ultraquick telecommunications at terahertz frequencies are now possible using “electronic metadevices,” which may set the stage for the next generation of speedy gadgets. The way in which these novel devices control electric fields is similar to how invisibility cloaks manipulate light, heat, and sound, a new study finds.As electronics shrink,…