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Steering light with supercritical coupling

Feb 22, 2024 (Nanowerk News) Researchers from the National University of Singapore (NUS) have unveiled a novel concept termed “supercritical coupling” that enables several folds increase in photon upconversion efficiency. This discovery not only challenges existing paradigms, but also opens a new direction in the control of light emission. Photon...

Silicon microresonators for artificial neural networks

Feb 22, 2024 (Nanowerk News) Researchers have made significant progress in the development of artificial neural networks using tiny silicon devices called microresonators, paving the way for faster and more energy-efficient artificial intelligence systems. These networks mimic the computing capabilities of the human brain, breaking away from traditional digital computer...

A nanosensor for brain chemistry analysis

Feb 22, 2024 (Nanowerk News) Longstanding challenges in biomedical research such as monitoring brain chemistry and tracking the spread of drugs through the body require much smaller and more precise sensors. A new nanoscale sensor greatly outperforms standard technologies by monitoring areas 1,000 times smaller and tracking subtle changes in...

numerous products, no acute dangers

Feb 22, 2024 (Nanowerk News)Think big. Despite its research topic, this could well be the motto of the Graphene Flagship, which was launched in 2013: With an overall budget of one billion Euros, it was Europe's largest research initiative to date, alongside the Human Brain Flagship, which was launched at...

Breakthrough optical platform unlocks secrets of natural swarm intelligence for next-gen collective microrobotics (w/videos)

Feb 21, 2024 (Nanowerk Spotlight) The remarkable collective motions exhibited by natural groups like schools of fish or flocks of birds have captivated scientists for generations. Teasing apart the factors enabling such coordinated swarming behaviors remains deeply challenging though, despite extensive observation and modeling efforts. Beyond satisfying curiosity, a deeper...

Researchers develop world’s most efficient quantum dot solar cell

Feb 21, 2024 (Nanowerk News) A groundbreaking research breakthrough in solar energy has propelled the development of the world’s most efficient quantum dot (QD) solar cell, marking a significant leap towards the commercialization of next-generation solar cells. This cutting-edge QD solution and device have demonstrated exceptional performance, retaining their efficiency...

Nanoscale manipulation of exciton-trion interconversion in a MoSe2 monolayer via tip-enhanced cavity-spectroscopy

Feb 21, 2024 (Nanowerk News) In a significant advancement for next-generation semiconductors, a collaborative research team, led by Professor Kyoung-Duck Park and Mingu Kang in the Department of Physics at POSTECH, Professor Yong Doug Suh in the Department of Chemistry at UNIST, who concurrently holds the position of Associate Director...

Angle-dependent holograms made possible by metasurfaces

Feb 21, 2024 (Nanowerk News) The expression "flawless from every angle" is commonly used to characterize a celebrity's appearance. This doesn't simply imply that they appear attractive from a specific viewpoint, but rather that their appeal remains consistent and appealing from various angles and perspectives. Recently, a research team from...