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light News
Team Challenges, Resolves Fundamental Rule Governing Light Propagation
JOHANNESBURG, July 4, 2022 — A study conducted by researchers at the University of the Witwatersrand (Wits) and collaborators from Mexico, Scotland, and the University of Pretoria aims to explains the rules governing the complex light propagation in complex media — media that tends to distort light significantly. The team found that all such media can be treated in the same way, and that the analysis does not depend on the type of light used. Previously, each choice of media and light beam were treated as a
Global Community Celebrates Day of Photonics 2021
Oct. 21, 2021 — More than 25 nations on five continents are hosting activities to celebrate the Global Day of Photonics 2021. The annual event held every Oct. 21 promotes photonics to the public. Companies, research organizations, and organizations involved in...
Light, Nanotechnology Could Prevent Bacterial Infections in Implants
BARCELONA, Spain, May 24, 2019 — Researchers have devised a novel technique that uses nanotechnology and photonics to dramatically improve the performance of medical meshes for surgical implants and help prevent antibiotic-resistant bacteria.
Muscle-Like Material Contracts When Illuminated
ST. LOUIS, April 5, 2019 — Researchers at Washington University in St. Louis (WUSTL) developed the material that in experiments showed the ability to lift a weight by simply shining a light on it. Tests are being conducted to determine the polymer’s best use, but the main...
Read By The Light Of a Glowing Plant?
Jan 29, 2018 — The global energy consumption attributed to direct and indirect lighting accounts for nearly 20 percent of demand and over 2 Gt of CO2 emissions per year. The rapid growth of cities and urbanizing regions around the world is changing the ways in...
Light Augments Conventional Methods of Mosquito Control
NOTRE DAME, Ind., June 21, 2017 — Exposure to just ten minutes of white light presented at timed intervals during the late daytime, dusk, dawn and throughout the night could suppress biting and manipulate flight behavior in the Anopheles gambiae mosquito, the major vector for...
White Hot Future for LEDs
Mar 2, 2016 — Today’s LEDs are true workhorses. Prized for their lower energy consumption, physical robustness and faster switching, they’re found in applications as diverse as aviation lighting, lighted wall paper and automotive headlamps, and are...
Natcore, Eurotron Partner on HIT Solar Cells
RED BANK, N.J., March 24, 2015 — Natcore Technology Inc. has teamed up with Eurotron B.V. to produce next-generation photovoltaic modules. The company recently announced that it had produced an all-back-contact silicon heterojunction with intrinsic thin layer (HIT) solar cell using...
Reader Polls
Aug 4, 2014 — READER POLL: Textbooks or experience? Which is the better teacher? Both are great, but I prefer a good textbook to start learning from. You can refer back to it, and there is more time to process the information. Patricia Comeford, engineer (via...
System Pushes Better Light Control
CAMBRIDGE, Mass., March 27, 2014 — More precise control of light could be on the horizon, prompting advances in solar photovoltaics, detectors for telescopes and microscopes, and privacy filters for display screens.
Microstructures Improve Data Transfer
SALT LAKE CITY, March 12, 2014 — Microscopic structures that use light in metals to relay information could improve the speed of wireless technology and enable the printing of magnetic materials.
Seeing the puck in strobe
Mar 6, 2014 — The buzzer sounds. The crowds cheer. Twelve angry hockey players fly out onto the ice, blades clicking, to test their reflexes, brute force and balance. It’s pandemonium. Chaos. And in the middle of it all, each player is hunting for a tiny,...
Light Alters Interaction of Organic Molecules
CAMBRIDGE, Mass., Aug. 7, 2013 — A new platform enables emissions from organic molecule to be manipulated when the molecules are suspended on top of a photonic crystal surface. The finding could have implications for bio-imaging and biomolecular detection, OLEDs, and investigations...
Moon-Shaped Metamaterial Broadens Manipulatable Bandwidths
STANFORD, Calif., May 9, 2013 — A new engineered broadband material crafted from artificial atoms more than doubles the range of light wavelengths that can be manipulated by such metamaterials, a development that could lead to perfect microscope lenses or invisibility cloaks....
An ‘Epic’ Plan: Student Outreach Program Takes the Long View
Apr 1, 2013 — As a student, I learned a lot of science facts that seemed to have no connection to what I might do in the future. The EPIC Adopt a Classroom project is notable for industry support of education, a growing necessity as education budgets shrink. But...
Quantum mystery of light revealed
BRISTOL, UK, and NICE, France – A unique setup involving an integrated photonic quantum chip in a quantum beamsplitter is helping to answer one of the most fundamental questions in physics: Is light made of waves or particles? Debates on the particle-wave theories of light have...
Synthetic magnetic field directs photons
STANFORD, Calif. – A photonic crystal device that tames the flow of free-moving photons with synthetic magnetism could enable scientists to precisely steer light in any direction. The process breaks a key law of physics known as the time-reversal symmetry of light....
Clemson Partners with OFS on Optics Lab
CLEMSON, S.C., and NORCROSS, Ga., Dec. 5, 2012 — Clemson University’s Center for Optical Materials Science and Engineering Technologies (COMSET) has teamed with OFS Laboratories, a Furukawa Electric company, to create a fiber optics laboratory for research and teaching.
Photons Observed as Particles, Waves Simultaneously
BRISTOL, England, and NICE, France, Nov. 5, 2012 — It is well-known that photons can act like waves or particles, depending on how they are measured experimentally. But they have never been seen exhibiting both behaviors at the same time — until now. The particle-wave theories of light were...
Physics Billboard 'Enlightens' Travelers
LONDON, Nov. 6, 2012 — A vital but little-known physics equation that has led to much of the technological development of the modern world is piquing the curiosity of travelers as they make their way through West London.
A Magnetic Field for Photons
STANFORD, Calif., Nov. 1, 2012 — A photonic crystal device that tames the flow of free-moving photons with synthetic magnetism could enable scientists to precisely steer light in any direction.
X-ray, optical wave mix probes light at atomic scale
BERKELEY, Calif. – Mixing x-ray and optical lightwaves enables observations of how light interacts with matter on the atomic scale. The capability can reveal certain properties of matter, and may enable the observation of changes during chemical reactions, such as the...
X-ray, Optical Wave Mix Probes Atomic-Scale Light
BERKELEY, Calif., Aug. 31, 2012 — A long-awaited technique for watching how light interacts with matter on the atomic scale was demonstrated by mixing x-ray and optical lightwaves. Vision, photosynthesis and solar cells are a few examples of the ways light changes matter, but how...
Light Screens for Heart Disease in Newborns
DURHAM, N.C., Sept. 7, 2011 — A screening technique helps identify congenital heart disease in newborn babies by using various wavelengths of light to measure blood oxygen levels. Levels that are too low are a warning sign and trigger further investigation, say physicians at...
Designer Light Creates Fun-House Mirror Effect
CAMBRIDGE, Mass., Sept. 2, 2011 — While studying the behavior of light on flat surfaces patterned with metallic nanostructures, researchers at the Harvard School of Engineering and Applied Sciences (SEAS) discovered a bizarre phenomenon that defies the laws of reflection and...
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September 2024
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