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MATERIALS, COATINGS NEWS
Nondestructive Method Uses Two Lasers to Characterize Nanomaterials’ Properties HAMBURG, Germany, June 18, 2021 — A noncontact measurement method that uses laser ultrasound so that the detailed elastic properties of nanostructured materials can be characterized will help engineers and scientists decide whether nanomaterials can be processed into certain components. These determinations depend on the materials’ mechanical properties. Nanostructuring of materials can lead to the discovery of new, often surprising properties. While this opens doors to potential applications and technologies, the
Improving Photoluminescence in Silicon Boosts PIC Performance MOSCOW, June 17, 2021 — Researchers in Russia have increased photoluminescence (PL) in silicon using germanium quantum dots and a specially designed silicon photonic crystal. Developed by scientists from Skolkovo Institute of Science and Technology (Skoltech), Institute...
Light-Based Method Creates 2D Polymer, Expedites Quest for New 2D Materials LINKÖPING, Sweden, June 16, 2021 — A method that uses light to manufacture 2D polymers that have the thickness of a single molecule could create a path for the development of ultrathin, functional 2D materials with highly defined and regular crystalline structures. The new method was...
Mechanoradical Coupling Strategy Ups Generic Polymers' Value SAPPORO, Japan, June 15, 2021 — A Hokkaido University research team has developed a method to give luminescent properties to generic polymers, potentially transforming existing commodity polymers into more valuable functional materials. The technique is based on mechanical force,...
Light-Responsive Hydrogels Use Nanomaterials to Safely Deliver Targeted Therapies COLLEGE STATION, Texas, June 14, 2021 — A research team at Texas A&M University is using nanomaterials that absorb near-infrared (NIR) light to develop and manipulate light-responsive hydrogels. The NIR light to which the nanomaterials respond in the research enables therapeutic...
Barrel-Eliminating Optical Element Enables Massive Zoom in Tiny Form Factor OTTAWA, Ontario, June 10, 2021 — A novel optical element will one day enable composite lenses and telescopes in a form factor small enough to fit in a pocket. The device, developed by Orad Reshef and Jeff Lundeen of the University of Ottawa, is called a spaceplate. Its function,...
Clinical, Commercial Applications Loom for Ultracompact On-Chip Spectrometer NEW HAVEN, Conn., June 10, 2021 — An ultracompact, mid-infrared spectrometer that uses a 10-nm thick, single tunable black phosphorus photodetector shows promise as an on-chip device for sensing, surveillance, and spectral imaging. The device is the result of a collaboration among...
Extremely Bright Quantum Emitter Self-Heals HSINCHU, Taiwan, June 10, 2021 — A new approach to synthesizing quantum dots has significantly increased their use value, according to members of an international research collaboration. The method, called spray-synthesis, was developed jointly by professor Hao-Wu Lin and associate...
Low-Cost Synthetic Diamond Fabrication Could Step Up Quantum Tech SYDNEY, June 8, 2021 — Using a thin tungsten layer as a restraining, conductive, removable hard mask, researchers at the University of Technology Sydney (UTS) developed a method for the fabrication of synthetic diamond. The developed material can be used for the photonic...
Metamaterial Boosts Infrared Spectroscopy’s Sensitivity DAEJON, South Korea, June 4, 2021 — A metamaterial absorber developed by researchers from the Korea Institute of Machinery and Materials (KIMM) under the Ministry of Science and ICT and UNIST is able to significantly enhance the detection of harmful substances or biomolecules. The...
Metamaterial Lets Light-Sheet Microscopes See in Superresolution SAN DIEGO, June 4, 2021 — A hyperbolic metamaterial developed at the University of California, San Diego enables ordinary light-sheet microscopes to observe subcellular structures — in other words, enabling an ordinary light microscope to see in superresolution. The...
Study of Perovskite Uncovers New State of Matter MONTREAL, June 1, 2021 — McGill University researchers set out to uncover the secrets of perovskite’s ability to act as a semiconductor, even with structural defects. In doing so, they have discovered what amounts to a new state of matter. Perovskites have garnered...
Programmable 2D Nanomaterial Captures Artificial Light for Bioimaging RICHLAND, Wash., May 27, 2021 — A light-harvesting nanomaterial inspired by the hierarchically structured biominerals in nature could be used to build artificial light-harvesting systems for bioimaging, photovoltaics, and other applications. Created by researchers at Pacific...
Ultrasensitive Detector Lets Lidar Look Farther AUSTIN, Texas, May 24, 2021 — A light sensor developed by the University of Texas at Austin (UT Austin) and the University of Virginia is able to amplify weak signals from far away with greater accuracy than current technology, giving autonomous vehicles a fuller picture of...
Ultralow-Loss Mirrors Boost Spectroscopy, Detection VIENNA, May 21, 2021 — Collaborators from industry and academia have demonstrated high-performance laser mirrors in the mid-infrared range that absorb fewer than 10 out of a million photons. The achievement, enabled by recent advancements in optical coating technology,...
Light Projection System Changes Objects’ Color and Patterns CAMBRIDGE, Mass., May 18, 2021 — Researchers at MIT have developed a method to rapidly change imagery on an object’s surface. The system, “ChromoUpdate,” pairs an ultraviolet light projector with items coated in light-activated dye. The projected light alters the...
Light-Controlled Nanoparticles Support Noninvasive Nanomedicine ST. PETERSBURG, Russia, May 13, 2021 — Scientists from ITMO University have developed a production method for bio-integrated optical nanomaterials based on Mie-resonant silicon nanoparticles. The nanoparticles used in the work are covered by biopolymer shells and can be controlled by...
Synapse-Like Phototransistor Enables Persistent, Low-Energy Optical Switching GOLDEN, Colo., May 11, 2021 — Researchers at the U.S. Department of Energy’s (DOE) National Renewable Energy Laboratory (NREL) created a phototransistor that allows long-lived persistent photoconductivity (PPC), which is a form of optical memory. The new structure is a...
Graphene-Based Tracking System May Streamline Autonomous Vision ANN ARBOR, Mich., May 10, 2021 — A real-time 3D tracking system developed at the University of Michigan may one day replace lidar and cameras in autonomous technologies. The system combines transparent graphene-based light detectors and advanced neural networks to sense and image...
Material Solution Helps Robots Perceive Surroundings LUXEMBOURG, May 3, 2021 — A material developed and introduced by researchers at the University of Luxembourg will help robots analyze and understand their surroundings. The material relies on hardened retroreflective spheres made from cholesteric liquid crystals, which turn...
Optical Tech Improves Heat Transfer LOS ANGELES, April 30, 2021 — Researchers from UCLA have demonstrated a class of optical materials that control how heat radiation is directed from an object. The advance could improve the efficiency of energy conversion systems and enable more effective sensing and detecting...
Integrated Photonic Circuits Demonstrate Ultralow Loss LAUSANNE, Switzerland, April 27, 2021 — Researchers at École polytechnique fédérale de Lausanne’s (EPFL’s) School of Basic Sciences have developed a technology that produces silicon nitride integrated photonic circuits with low optical losses and small...
Silver Ions’ Dispersion from Alloys Benefits Optical Sensors, Other Applications HOUSTON, April 27, 2021 — A study led by Rice University and the University of Duisburg-Essen in Germany used hyperspectral dark-field imaging microscopy to reveal the multistep mechanism that causes silver ions to dissipate from gold-silver alloy nanoparticles. Gold-silver...
2D Microlaser Arrays Give Integrated Photonic Systems a Boost RESEARCH TRIANGLE PARK, N.C., April 26, 2021 — Researchers from the University of Pennsylvania and Duke University designed and built 2D arrays of closely packed microlasers that demonstrated the stability of a single microlaser and that collectively achieved power density that were orders of...
Laser Pulses Trigger Ultrafast Material Property Shift BERLIN, April 26, 2021 — Researchers from the Fritz Haber Institute of the Max Planck Society and the Max Planck Institute for the Structure and Dynamics of Matter demonstrated the ability to use light to achieve a novel type of ultrafast switch. The efforts stem from the...
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