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RESEARCH & TECHNOLOGY NEWS
Freeform Optics and Metasurfaces Create Compact AR/VR Eyewear ROCHESTER, N.Y., May 5, 2021 — A team from the University of Rochester’s Institute of Optics imprinted freeform optics with a metasurface, in a combination of optical technologies that charts a course for a new fabrication method for AR/VR glasses. The metasurface, a silver nanoscale structure on a thin metallic film, conformed to the freeform shape of the optics used in the work, which allowed the researchers to develop an optical component that they call a “metaform.” The metaform defies the
Atom Interferometry, Demonstrated in Space, Opens Measurement Possibilities MAINZ, Germany, May 4, 2021 — A German team successfully demonstrated atom interferometry in space on board a sounding rocket. Atom interferometry uses the wave character of atoms to make high-precision measurements. The application can be used to measure the gravitational field...
Nanoflashlight Could Turn Mobile Devices into Powerful Biosensors CAMBRIDGE, Mass., May 4, 2021 — Researchers at MIT built a device that they describe as a “nanoscale flashlight” on a chip. The device overcomes a limitation of spectroscopy, in that spectrometers are relatively large instruments. Much like a spectrometer, the MIT...
Consortium Uses Infrared Imaging to Detect Brain Damage in Infants BARCELONA, Spain, May 3, 2021 — Around 500,000 babies born each year develop brain damage that could be treated if caught in time; however, monitoring an infant’s brain is difficult. A device currently in development seeks to address that problem by enabling real-time...
Consortium Will Roadmap Photovoltaics Semiconductor Technology GOLDEN, Colo., May 3, 2021 — A recently formed consortium brings together partners from industry and academia to advance a photovoltaic semiconductor technology that already meets approximately 40% of the domestic U.S. utility-scale photovoltaic demand. The U.S. Manufacturing...
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...
Fluorescent Sensor Identifies Psychiatric Drugs DAVIS, Calif., April 29, 2021 — A genetically encoded biosensor to detect hallucinogenic compounds could be used to aid in the discovery of treatments for mental illness, in neuroscience research, and to detect drugs of abuse. A team at the University of California, Davis (UC...
Lidar-Based AR Display May Improve Road Safety CAMBRIDGE, England, April 29, 2021 — A lidar-based AR head-up display allows drivers to “see through” objects to alert of potential hazards without distraction. Researchers from the University of Cambridge, the University of Oxford, and University College London (UCL)...
The Shape of Light Restructures Our Understanding of Vision GENEVA, April 29, 2021 — Recent work has shown that the process involving the perception of vision occurs very quickly. However, because analysis of this step has been carried out on molecules in a laboratory environment, only limited conclusions can be drawn. Now,...
Optical Method Measures Universe Expansion ANN ARBOR, Mich., April 28, 2021 — Researchers from the University of Michigan and the University of Hawaii Institute of Astronomy proposed an optical method that uses the light from quasars to determine the rate of the universe’s expansion. The method, the researchers said, is...
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...
Optical Device Fine-Tunes Light STANFORD, Calif., April 26, 2021 — Stanford University researchers developed an optical device that enables the fine-tuning and changing of frequencies of individual photons in a stream of light, to virtually any mixture of colors. The new photonic architecture has potential...
Metalens Will Deliver on Challenging Printing Applications, Direct Laser Lithography EVANSTON, Ill., April 23, 2021 — A team at Northwestern University designed a high-numerical aperture metalens and fabricated it on an optical fiber tip, using a set of processes that establishes an alternate path for optical nanoparticle trapping and other imaging applications...
Light and Superconductors Join to Boost AI GAITHERSBURG, Md., April 22, 2021 — At the National Institute of Standards and Technology (NIST), researchers proposed an approach to large-scale artificial intelligence that focuses on integrating photonic components with superconducting electronics as opposed to semiconducting...
THz Optoacoustic Method Images Water-Rich Samples BELLINGHAM, Wash., April 22, 2021 — A research team led by Zhen Tian and Jiao Li at Tianjin University developed a method for analyzing water-rich samples using time-domain terahertz (THz) optoacoustics. The method overcomes a bottleneck that prevented the use of THz radiation in the...
Flexible, Wearable Sensor Detects Gas Leaks Instantly POHANG, South Korea, April 20, 2021 — A wearable hologram sensor is able to instantly notify its user of the presence of volatile gases. The wearable device overcomes issues of high expense associated with current gas sensing technology, addressing the needs of workers in hazardous...
Nonlinear Near-Field Optical Microscopy Images Evanescent Waves in Real Time HAIFA, Israel, April 19, 2021 — Researchers from Technion-Israel Institute of Technology demonstrated an approach for obtaining images of evanescent waves that uses nonlinear wave-mixing. The microscopy method allowed the researchers to fully reconstruct the electromagnetic field...
Photonic MEMS Switches Offer Commercial, Production Benefits BELLINGHAM, Wash., April 19, 2021 — Members of an international collaboration initiated by researchers at the University of California, Berkeley used a commercially available CMOS fabrication process to develop a photonic switch based on MEMS technology. The ability to microfabricate...
White Solar-Reflectance Paint Reduces Need for Air Conditioning WEST LAFAYETTE, Ind., April 16, 2021 — A team from Purdue University has developed an improved ultrawhite paint that, tests showed, reflected more than 98% of sunlight — compared to 95.5% of sunlight that an earlier version of the paint reflected following its introduction in...
Light-Activated Molecule Eliminates Alzheimer’s Protein in Live Mice TOKYO, April 15, 2021 — Research from the University of Tokyo has demonstrated the efficacy of a small, light-activated molecule in removing clumps of amyloid protein found in the brains of mice with Alzheimer’s disease. If perfected for use in humans, the method...
Lightwaves Penetrate Opaque Materials, Emerge Unchanged VIENNA, April 15, 2021 — A special class of lightwaves possesses the physical qualities that make it able to emerge largely unchanged upon penetrating disordered media. A team from the Vienna University of Technology (TU Wien) and Utrecht University determined that, for any...
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