Hacker News with Generative AI: Metamaterials

Efficient light control: Meta-optics replace conventional lenses (phys.org)
Conventional curved lenses, which direct light by refraction in glass or plastic, are often bulky and heavy, offering only limited control of light waves.
Physics, Optics, Nanotechnology, Metamaterials
36 points by bookofjoe 7 days ago | 7 comments
Integrated sensing and communication based on space-time-coding metasurfaces (nature.com)
Programmable metasurfaces (PMs), also called reconfigurable intelligent surfaces (RISs), are planar structures capable of dynamically manipulating electromagnetic waves in real-time.
Metamaterials, Communications, Science, Electromagnetics
40 points by westurner 32 days ago | 5 comments
Tunable ultrasound propagation in microscale metamaterials (news.mit.edu)
A new study coauthored by Portela; Rachel Sun, Jet Lem, and Yun Kai of the MIT Department of Mechanical Engineering (MechE); and Washington DeLima of the U.S. Department of Energy Kansas City National Security Campus presents a design framework for controlling ultrasound wave propagation in microscopic acoustic metamaterials.
Acoustics, Metamaterials, Nanotechnology, Materials Science, Engineering
32 points by XzetaU8 134 days ago | 6 comments