Sep 27, 2022 (Nanowerk News) Researchers have developed a metasurface device that can display three types of images depending on the illumination light. The three-channel device could be used as an anticounterfeiting measure or offer a new way to securely deliver encrypted information. Researchers have developed a metasurface device that...
A powerful Bragg reflector made with ultrahigh refractive index metamaterial
Sep 27, 2022 (Nanowerk News) We all look in the mirror at least once a day to see our reflection. Mirrors are used not only in daily life but also in cutting-edge technologies such as semiconductor processing and high-resolution displays. Recently, a powerful Bragg reflection mirror based on high-index metamaterials...
Quantum effects in memristive devices
Sep 27, 2022 (Nanowerk News) At the nanoscale, the laws of classical physics suddenly become inadequate to explain the behavior of matter. It is precisely at this juncture that quantum theory comes into play, effectively describing the physical phenomena characteristic of the atomic and subatomic world. Thanks to the different...
DART mission hits asteroid in first-ever planetary defense test
Sep 27, 2022 (Nanowerk News) After 10 months flying in space, NASA’s Double Asteroid Redirection Test (DART) – the world’s first planetary defense technology demonstration – successfully impacted its asteroid target on Monday, the agency’s first attempt to move an asteroid in space. Mission control at the Johns Hopkins Applied...
MXene with its X factor may help downscaling 2D transistors
Sep 27, 2022 (Nanowerk Spotlight) On December 26, 1947, the two physicists Walter Brattain and John Bardeen, officially demonstrated the first point-contact transistor at Bell Labs. Later, in January 1948, William Shockley, one of the pioneers of semiconductor device physics, presented the first junction transistor, which marked the practical beginning...
A mass production method for biodegradable microrobots
Sep 27, 2022 (Nanowerk News) Daegu Gyeongbuk Institute of Science & Technology (DGIST, President Yang Kook) Professor Hongsoo Choi’s team of the Department of Robotics and Mechatronics Engineering collaborated with Professor Sung-Won Kim’s team at Seoul St. Mary’s Hospital, Catholic University of Korea, and Professor Bradley J. Nelson’s team at...
How to use AI in a human-centred way
Sep 27, 2022 (Nanowerk News) One of the things that artificial intelligence (AI) is good at is handling time-consuming routine tasks. But to reduce their impact to time savings is to miss the point. They result in more changes than that. They affect the tasks performed by humans, their daily...
Artificial intelligence reduces a 100,000-equation quantum physics problem to only four equations
Sep 26, 2022 (Nanowerk News) Using artificial intelligence, physicists have compressed a daunting quantum problem that until now required 100,000 equations into a bite-size task of as few as four equations — all without sacrificing accuracy. The work, published in Physical Review Letters ("Deep Learning the Functional Renormalization Group"), could...
Dozens of newly discovered gravitational lenses could reveal ancient galaxies and the nature of dark matter
Sep 26, 2022 (Nanowerk News) Earlier this year a machine learning algorithm identified up to 5,000 potential gravitational lenses that could transform our ability to chart the evolution of galaxies since the Big Bang. Now astronomer Kim-Vy Tran from ASTRO 3D and UNSW Sydney and colleagues have assessed 77 of...
Solving stability problems of relevant graphene derivatives
Sep 26, 2022 (Nanowerk News) In the last decades, a new synthetic approach has been developed, generally termed as “on-surface synthesis” that substantially departs from standard wet-chemistry. Instead of the three-dimensional space of solvents in the latter, the environment of the reactants in this new approach are well-defined two-dimensional solid...