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Materials, Coatings News
For Quantum Computing, New Hardware Platform Based on 2D Materials
PHILADELPHIA, Feb. 13, 2019 — To harness the capability of quantum computing, hardware must be developed that can access, measure, and manipulate individual quantum states. In response to this need, researchers at the University of Pennsylvania have demonstrated a new hardware platform based on isolated electron spins in a 2D material. The electrons are trapped by defects in sheets of one-atom-thick semiconductor material (hexagonal boron nitride, or h-BN).
Researchers Find New Method for Fabricating Optical Metasurfaces
LAUSANNE, Switzerland, Feb. 13, 2019 — A way to produce glass metasurfaces that can be either rigid or flexible, developed by engineers from the EPFL Laboratory of Photonic Materials and Fiber Devices, could be used to fabricate all-dielectric optical metasurfaces quickly, at low...
German Companies Partner for Macroscopic Polymer Production
AACHEN, Germany, Feb. 11, 2019 — LightFab GmbH, Bartels Mikrotechnik GmbH, Miltenyi Biotec GmbH, and Fraunhofer ILT are jointly executing the HoPro-3D project, a plan to create a new machine for producing macroscopic polymer structures with a resolution in the sub-µm range. The...
Swansea University, Crown Holdings Enter Smart Factory Project Collaboration
SWANSEA, Wales, Feb. 8, 2019 — Next-generation smart factories, which use advanced digital technology to improve efficiency, are the focus of a collaboration between packaging manufacturer Crown Holdings Inc. and Swansea University. Swansea’s Cinzia Giannetti at the College of...
Lens-Free, Multicolor Holography Technique Could Enable Compact 3D Displays
DURHAM, N.C., Jan. 28, 2019 — A holography technique based on computer-generated holograms (CHGs), developed by a team at Duke University, produces complex, multicolor holographic images without any bulky optical components. The researchers encoded a multicolor image onto a 300-...
All-Diamond Metamaterial Optics
Jan 24, 2019 — The strongly bound and tightly packed crystal lattice that comprises diamond makes it an ideal candidate for extreme optical and photonic devices. Thanks to the unique combination of its outstanding thermal, mechanical, and optical properties,...
UV-Powered Fluid Pump Could Move Pollutants, Deliver Drugs
STATE COLLEGE, Pa., Jan. 23, 2019 — A highly controllable method that uses UV light to control particle motion and assembly within liquids could be used in drug delivery, chemical sensors, and fluid pumps. Developed by the Sen Lab at Pennsylvania State University, the new technique...
Optics Improvements Prompt Enhanced Component Parameters
Jan 22, 2019 — For defense and security applications, size matters. So do weight, power, and cost. These four parameters are often referred to as SWaP-C, a key concept that drives the manufacture of defense and security systems, sensors, and optical components....
Next-Gen Semi Materials Could Be a Boost for Photovoltaics, Lighting
ATLANTA, Jan. 17, 2019 — Next-generation semiconducting materials have the potential to transform lighting technology and photovoltaics, suggest researchers from the Georgia Institute of Technology (Georgia Tech), in a study of the unusual physics behind hybrid...
Engineers Perform Computational Logic with Optical and Electrical Signals
TOKYO, Jan. 16, 2019 — In work that could help advance low-power, high-performance computer chips, researchers at the University of Tokyo and RIKEN have employed UV light and electric fields to perform logic operations with a chemical device. The use of electric fields...
Directed Currents Generated at THz Frequencies Are Higher Than Current Clock Rates
BERLIN, Jan. 16, 2019 — Researchers at the Max Born Institute (MBI) generated directed electric currents at terahertz (THz) frequencies from light absorbed in semiconductor crystals. According to the researchers, this is a much higher frequency than the clock rates of...
New Additive Manufacturing Method Uses Light to Prevent Resin From Curing Against Vat
ANN ARBOR, Mich., Jan. 14, 2019 — A new approach to 3D printing uses two-color irradiation of resin formulations that contain a photoinitiator and a photoinhibitor to perform vat-printing up to 100 times faster than conventional 3D printing processes, according to a team of...
Second Harmonic Generation Imaging Reveals Existence of Second Bandgap in a 2D Structure
DAEGU, South Korea, Jan. 12, 2019 — Using time-resolved second harmonic generation (TSHG) microscopy and density functional theory (DFT) calculations, researchers at Daegu Gyeongbuk Institute of Science and Technology (DGIST) have demonstrated the existence of upper bandgap of atomic...
Holographic Color Prints Combine Phase and Amplitude Control of Light for Better Optical Security
SINGAPORE, Jan. 10, 2019 — A new optical anticounterfeiting device, called “holographic color prints” by its developers at the Singapore University of Technology and Design (SUTD), provides a dual function to increase security and deter counterfeiting. The device creates...
Pure Graphene Generates Photocurrent Over Great Distances
RIVERSIDE, Calif., Jan. 8, 2019 — An international research team has discovered a new mechanism for ultra-efficient charge and energy flow in pristine graphene. The team was co-led by professor Nathaniel Gabor from the University of California, Riverside. The researchers fabricated...
Researchers Use Light Waves to Study Topological Materials
VIENNA, Jan. 5, 2019 — The laws of quantum physics tell us that electrons behave like waves; and in some materials, these electron waves can take on complicated shapes. So-called “topological materials” produce electron states that can be useful, but it is difficult to...
Tunable, Nonlinear Metamaterials Could Facilitate Optical Communication
LOWELL, Mass., Jan. 4, 2019 — Scientists from the University of Massachusetts (UMass) Lowell, King’s College London, Paris Diderot University, and the University of Hartford have found that several materials with poor nonlinear characteristics can be combined together to form a...
Microwaveguides Could Speed Control of Light Flux in PICs
NIZHNY NOVGOROD, Russia, Jan. 2, 2019 — In order to increase the speed with which photonic integrated circuits (PICs) control light flux, researchers are for new materials with high optical nonlinearity. Among the promising materials are microwaveguides based on graphene, a material in...
Microgears Made from Germanium Generate Twisted Light
SOUTHAMPTON, England, Dec. 31, 2018 — Miniature gears made from germanium have demonstrated the ability to generate light that has orbital angular momentum. This new light source could be used to boost the amount of data that can be transmitted through optical computing. Light carries...
Imec, Ghent, SEED Develop Autonomous, Electronic Contact Lens
LEUVEN, Belgium, Dec. 24, 2018 — Nanoelectronic hub imec, Ghent University, and contact lens manufacturer SEED Co. have developed a contact lens with an integrated LED light as part of a novel wearable device. The device also includes an ultrathin silicon microchip, a radio...
Metasurface for Nonlinear Manipulation Could Simplify Wireless Communication
NANJING, China, Dec. 20, 2018 — Scientists have developed a metasurface that enables efficient manipulation of spectral harmonic distribution, and have achieved a novel architecture for wireless communication systems based on this time-domain digital coding metasurface. According...
2D Circuits On Smooth Surfaces Could Aid Next-Gen Biosensors
HOUSTON, Dec. 14, 2018 — Atom-flat sensors, made from 2D materials, could be used to monitor performance without adding weight or hindering signal flow if they could be seamlessly integrated onto surfaces with different geometries where detection for near-field signal is...
Graphene Sensor Detects Substances, Boosts Food Safety
HANGZHOU, China, Dec. 7, 2018 — A new sensor design makes use of the optoelectronic properties of graphene to enable simultaneous detection of multiple substances, including bacteria and other pathogens. The design is based on 2D graphene sheets, each just one atom thick, and was...
Real-Time Imaging Reveals Flexibility of Crystal Surfaces
KYOTO, Japan, Dec. 6, 2018 — Images taken using an atomic force microscope have enabled researchers from Kyoto University’s Institute for Integrated Cell-Material Sciences (iCeMS) to observe, for the first time, the flexible and dynamic changes that occur on the surfaces...
Colloidal Quantum Dot, IR LEDs Display Highest Efficiency
BARCELONA, Spain, Dec. 5, 2018 — A composite material that is a strong light emitter as well as an efficient charge conductor — colloidal quantum dot (CQD) LEDs — has been developed by a team at the Institute of Photonic Sciences (ICFO). The nanocomposite system comprising IR CQDs...
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July 2024
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