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RESEARCH & TECHNOLOGY NEWS
Common Household Materials Can Cool Outdoor Temperatures LOS ANGELES, Nov. 30, 2021 — Using “Scotch tape” and aluminum foil, engineers at UCLA built a passive radiative cooler that lowers outdoor temperatures without electricity or refrigerants. The team’s cooler design exhibits solar reflectance, long wavelength infrared (LWIR) emittance, and optical selectivity that is comparable to leading radiative coolers, the engineers said. The readily available materials with which the cooler is made, combined with its ease of fabrication and performance, suggest
Histology Process Bypasses Need for Biopsies, Enables Diagnoses LOS ANGELES, Nov. 30, 2021 — A deep learning-enabled imaging technology, developed by UCLA professor Aydogan Ozcan and colleagues, provides a noninvasive way to rapidly diagnose skin tumors, allowing earlier diagnosis of skin cancer. The technology bypasses reliance on skin...
Device Modulates Visible Light Without Dimming NEW YORK, Nov. 29, 2021 — Researchers at Columbia University School of Engineering and Applied Science have developed a device that modulates visible light without dimming it, and in a small footprint with low power consumption. The work holds implications for applications...
Ultrasensitive Solar-Blind Detectors Weather Harsh Environments HEFEI, China, Nov. 29, 2021 — A solar-blind ultraviolet photodetector (SBPD) designed for harsh environments uses amorphous gallium oxide (AGO) as a materials substitute for the traditional silicon substrate. Gallium oxide features a wide bandgap and high heat resistance, and it...
Structural Color Gives Sustainable Sparkle to Plant-Based Materials CAMBRIDGE, England, Nov. 26, 2021 — Not all that glitters is gold and not all that’s glitter is good for the environment. Used to add sparkle to everything from cosmetics to Christmas ornaments, glitter is getting an environmentally friendly makeover from scientists at the...
Imaging Method May Improve Detection of Skin Cancer QUEBEC CITY, Nov. 24, 2021 — An imaging technique developed by researchers at the Institut national de la recherche scientifique (INRS), can measure temperature in 2D, without contact, and in real time. The method could improve photothermal therapy and help deliver early...
Algorithm Improves Holographic Displays STANFORD, Calif., Nov 23, 2021 — Research at Stanford University may lead to more realistic displays in virtual and augmented reality headsets. A team at the school has developed a technique to reduce a speckling distortion often seen in regular laser-based holographic displays, as...
Squeezed Light Improves Accuracy of Magnetometry BARCELONA, Spain, Nov. 22, 2021 — Researchers from ICFO (The Institute of Photonic Sciences) and Hangzhou Dianzi University have revealed that the effect known as “squeezed light” — the organization of photons in motion that ensures that they arrive on a target in...
Photocatalyst Quantum Confinement Points to Green Hydrogen Production HONG KONG, Nov. 22, 2021 — The discovery of the effect of quantum confinement in a 3D-ordrered microporous (3DOM) structure photocatalyst has enabled the production of hydrogen under a visible light source. A research team led by researchers from China and Germany made the...
Optofluidic Device Enables Detection of Single Molecules BREISGAU, Germany, Nov. 10, 2021 — Citing increased resistance to antibiotics on the rise globally, researchers from Fraunhofer Institute for Physical Measurement Techniques (Fraunhofer IPM), working alongside those from the Ludwig Maximilian University of Munich, have developed a...
Foveated Glasses-Free 3D Display Achieves High Angular Resolution with Wide FOV SUZHOU, China, Nov. 9, 2021 — Glasses-free 3D displays could transform the portable electronics industry. However, the limited resolution of display panels in existing 3D displays compromises spatial and angular resolution as well as viewing angle capabilities. An approach to 3D...
Nanodiamonds Light Up Phantoms for Microscopy Calibration URBANA, Ill., Nov. 9, 2021 — Researchers at the Beckman Institute for Advanced Science and Technology at the University of Illinois Urbana-Champaign are using microscopic nanodiamonds to calibrate and assess the performance of high-powered microscopes. The work is poised to...
Widefield Scanning Laser Ophthalmoscopy Offers Noninvasive Diabetic Retinopathy Detection TOKYO, Nov. 9, 2021 — For retinal diseases such as diabetic retinopathy (DR), which affect a wide area of the fundus, the interior surface at the back of the eye, it is important for clinicians to be able to examine a broad area of the eye in a single shot. A research...
Doping Process Increases Control, Transparency of Graphene NEW YORK, Nov. 8, 2021 — An interdisciplinary team of researchers from Columbia University and Sungkyungkwan University (South Korea) has introduced a clean technique to dope graphene via a charge-transfer layer made of low-impurity tungsten oxyselenide (TOS). The team...
Silicon Photonic Chip Increases Quantum Security NANJING, China, Nov. 8, 2021 — Researchers from Nanjing University and Sun Yat-sen University developed a quantum communications platform based on a silicon photonic chip with a superconducting nanowire single-photon detector (SNSPD). The chip’s performance enabled the team...
Machine Learning-Based Label-Free Histopathology Device Performs in Real Time POHANG, South Korea, Nov. 4, 2021 — Researchers from Pohang University of Science and Technology (POSTECH) and Gachon University College of Medicine (South Korea) have developed a device that removes the need for complex procedures such as freezing, sectioning, and staining in...
Parallel Optical Processing Enables Highest Throughput Microscopy Imaging STORRS, Conn., Nov. 3, 2021 — A resolution-enhanced parallel-coded ptychography technique developed by researchers at the University of Connecticut has achieved the highest numerical aperture and throughput to date, compared to previous demonstrations of similar technology. The...
Quantum Microcomb Entangles Optical Fields CHARLOTTESVILLE, Va., Nov. 3, 2021 — Researchers at the University of Virginia developed a tiny optical frequency comb, or microcomb, that uses two-mode squeezing to create unconditional entanglement between continuous optical fields. The miniature, chip-based device lays the...
Nanophotonic Device Steers Researchers Toward Quantum Communication, Sensing Possibilities ROCHESTER, N.Y., Nov. 2, 2021 — Researchers at the University of Rochester have used a thin-film nanophotonic device and the phenomenon of quantum entanglement to generate very large bandwidth — a record for ultrabroadband, the researchers said. The researchers entangled...
Photonic Crystal Microscope Quickly Detects Biomarkers for P-O-C Diagnostics URBANA, Ill., Nov. 2, 2021 — A compact photonic resonator absorption microscopy (PRAM) instrument, developed by a team at the University of Illinois Urbana-Champaign, provides fast, selective detection of cancer biomarkers for diagnostics at the point of care. The instrument...
Laser-Writing Method Facilitates 10,000× Greater Data Storage than Blu-Ray Disc SOUTHAMPTON, England, Nov. 1, 2021 — University of Southampton researchers have developed a fast and energy-efficient laser-writing method for producing high-density nanostructures in silica glass. The resulting tiny structures can be used for long-term five-dimensional (5D) optical...
Researchers Achieve Magnet-Free Optical Isolation LAUSANNE, Switzerland, Oct. 29, 2021 — A collaboration between École Polytechnique Féderalé de Lausanne and Purdue University has led to the development of an electrically driven, magnet-free optical isolator that enables light routing on a chip. Typically, optical...
Evaporation Model Shows Mechanistic Behaviors of Liquid Marbles THUWAL, Saudi Arabia, Oct. 28, 2021 — Researchers from King Abdullah University of Science and Technology (KAUST) have introduced a framework for the evaporation behavior of liquid marbles — nonstick and hydrophobic particle-coated droplet structures. Liquid marbles’...
Photons Form Social Network in BEC ‘Liquid Light’ Experiments ENSCHEDE, Netherlands, Oct. 28, 2021 — The photon is one of the particle types, called bosons, that is able to form a Bose-Einstein condensate. The ability of photons to condense in the state known as a Bose-Einstein condensate is how liquid light is derived. To understand the physical...
Holographic Space Telescope Takes Aim at the Next 'Planet Earth' TROY, N.Y., Oct. 27, 2021 — To support the discovery of planets outside the solar system, scientists at Rensselaer Polytechnic Institute (RPI) created an experimental space telescope that can directly analyze the spectra of an exoplanet. The main component of the Dual Use...
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