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Optics & Photonics Jul 6, 2022

Frequency-domain STED microscopy for selective background noise suppression

Nanoscopy describes the ability to see beyond the generally accepted optical limit of 200–300 nm. Stimulated emission depletion (STED) microscopy, developed by Stefan W. Hell and Jan Wichmann in 1994, and experimentally ...

Optics & Photonics Jun 30, 2022

The principle of inkjet printing and its applications on AR/VR micro-displays

With the rapid development of artificial intelligence, image recognition and 5G communication technology, augmented reality (AR) and virtual reality (VR) technologies are developing at an alarming rate. Under the background ...

Condensed Matter Jun 27, 2022

Taking quantum control of life's building blocks

Life (as we know it) is based on carbon. Despite its ubiquity, this important element still holds plenty of secrets, on earth and in the heavens above us. For example, astrophysicists like Columbia's Daniel Wolf Savin who ...

Quantum Âé¶¹ÒùÔºics Jun 23, 2022

Scientists engineer quantum processor to emulate a small organic molecule

A team of quantum computer physicists at UNSW Sydney has engineered a quantum processor at the atomic scale to simulate the behavior of a small organic molecule, solving a challenge set some 60 years ago by theoretical physicist ...

Nanomaterials Jun 22, 2022

Using microbrewery waste to synthesize carbon quantum dots

For a few years now, spent grain, the cereal residue from breweries, has been reused in animal feed. This material could also be used in nanotechnology. Professor Federico Rosei's team at the Institut national de la recherche ...

Biotechnology Jun 20, 2022

Scientists develop synergistic antibacterial carbon dots

The use of antibiotics helps fight bacterial infection, but the abuse of antibiotics has resulted in the emergence and widespread prevalence of "super bacteria," making the treatment of infectious diseases a worldwide problem ...

Analytical Chemistry Jun 14, 2022

Calculating the 'fingerprints' of molecules with artificial intelligence

With conventional methods, it is extremely time-consuming to calculate the spectral fingerprint of larger molecules. But this is a prerequisite for correctly interpreting experimentally obtained data. Now, a team at HZB has ...

Nanophysics Jun 13, 2022

Twin photons from different quantum dots

Identical light particles (photons) are important for many technologies that are based on quantum physics. A team of researchers from Basel and Bochum has now produced identical photons with different quantum dots—an important ...

Nanophysics Jun 9, 2022

Electron-phonon coupling-assisted universal red luminescence of o-phenylenediamine-based carbon dots

Carbon dots (CDs) are new carbon-based photoluminescence (PL) nanomaterials with a core-shell motif. Due to their fascinating advantages, such as chemical inertness, high quantum yields (QYs), high water solubility, thermal ...

Nanophysics Jun 8, 2022

Phonon dynamics enable a deeper understanding of how heat travels through quantum dots

As electronic, thermoelectric and computer technologies have been miniaturized to nanometer scale, engineers have faced a challenge studying fundamental properties of the materials involved; in many cases, targets are too ...

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