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Light Sources News
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 identify these materials and their associated electronic states. To identify these “topological materials,” scientists from TU Wien (Vienna University of Technology) and the University of Science and Technology of China created a “crystal” made of...
Optogenetics Device Offers Targeted Control of Light to Neurons
TUCSON, Ariz., Jan. 3, 2019 — University of Arizona researchers have developed a wireless, battery-free method for controlling the intensity and frequency of light that is delivered to neurons in the brain. The miniature device for optogenetics can be fully implanted under the...
Use of Light to Stop Itch Could Provide Relief From Skin Diseases
ROME, Jan. 3, 2019 — Scientists at the European Molecular Biology Laboratory (EMBL) in Rome have used light to stop itch — at best an annoyance and at worst an uncomfortable chronic symptom — in mice. They used NIR light to activate a phototoxic agent that selectively...
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...
Researchers Achieve Strong Optomechanical Coupling of Light and Sound
LONDON, Dec. 28, 2018 — A strong coupling regime between light and high-frequency acoustic sound waves was demonstrated by a team from Imperial College London, the University of Oxford, and the National Physical Laboratory. The team’s findings could provide a possible...
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...
Researchers Demonstrate Ultrafast Conversion of Light into Electricity
KIEL, Germany, Dec. 21, 2018 — A team from Kiel University (CAU) filmed the conversion of light energy into a solid — an exchange that takes place in a matter of femtoseconds (fs) — using an ultrafast camera system developed by the researchers. The team was able to observe the...
New High-Power, Tunable THz Laser Is Slated for Space Mission
CAMBRIDGE, Mass., Dec. 20, 2018 — A new terahertz (THz) laser designed by researchers at Massachusetts Institute of Technology (MIT) has demonstrated high constant power, tight beam pattern, and broad electric frequency tuning — three performance metrics that could mean less noise...
Laser-Based Imaging Technique Uncovers the Origin of Feathers
HONG KONG, Dec. 20, 2018 — If you think that feathers are for the birds, you may be interested to know that Earth’s first feathered creature was actually a reptile that lived about 230 million years ago. A new imaging technique shows that pterosaurs — close relatives of the...
Photochemical Deracemization of Chiral Compounds Assists Drug Development
MUNICH, Germany, Dec. 20, 2018 — Deploying a photochemical method, a team from the Technical University of Munich (TUM) has achieved deracemization of chiral compounds for use in biology and medicine. The advance could make it easier for chemists and drug developers to produce...
Deep Learning Is Used to Recover Objects in Low Light
CAMBRIDGE, Mass., Dec. 19, 2018 — A new imaging technique, developed by engineers at Massachusetts Institute of Technology (MIT), demonstrates that deep neural networks (DNNs) can be used to illuminate transparent features such as biological tissues and cells in images taken with...
Drones Could Simplify Animated Film Production
ZÜRICH, Dec. 18, 2018 — Computer scientists at ETH Zürich have developed a system that could transform the way animated films are made. The research team, which about a year ago showed that highly technical film scenes could be shot more easily using drones, has now...
Mini-QCL Frequency Combs Provide Solution for Chemical Sensing
VIENNA, Dec. 13, 2018 — Researchers at the Vienna University of Technology (TU Wien) are working with laser frequency combs to enable chemical analysis on a chip. This new patent-pending technology will enable frequency combs to be created on a single chip in a simple,...
LIGO and Virgo Announce Four New Gravitational-Wave Detections
CAMBRIDGE, Mass., Dec. 12, 2018 — The National Science Foundation’s LIGO (Laser Interferometer Gravitational-Wave Observatory) and the European-based Virgo gravitational-wave detector have detected four new black hole merger events. The findings were presented at the Gravitational...
Wireless, Wearable Sensors-on-a-Chip Provide Precise Dosimetry at Multiple Wavelengths
EVANSTON, Ill., Dec. 11, 2018 — A wearable, battery-free sensor has been developed that can measure and monitor exposure to light across multiple wavelengths, from the UV to the VIS to the IR regions. The device, created by researchers at Northwestern University, can record up to...
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...
2019 Prism Award Finalists Announced
BELLINGHAM, Wash., and PITTSFIELD, Mass., Dec. 5, 2018 — Established industry stalwarts will compete with disruptive startups at the Prism Awards ceremony and banquet during SPIE Photonics West 2019 in San Francisco. Celebrating its 11th year, the Prism Awards recognize industrial innovation in photonics...
Optical Cluster States Could Enable One-Way Quantum Computing
QUEBEC CITY, Canada, Dec. 4, 2018 — Using a compact optical platform, a research team at Institut National De La Recherche Scientifique (INRS) has generated a high-dimensional, d-level cluster state and has used it to perform quantum computing operations. According to the researchers,...
High-Performance Computers Could Advance Application of 3D Holography
CHIBA, Japan, Nov. 30, 2018 — Researchers at Chiba University are developing a computer that can project high-quality 3D electroholography as a video — a project that they began about 25 years ago. The team, led by professor Tomoyoshi Ito, has been working to increase the speed...
Researchers Demonstrate Efficiency of Radical-Based OLEDs
CAMBRIDGE, England, Nov. 27, 2018 — Radicals — semiconducting molecules with unpaired electrons — can be used to fabricate highly efficient OLEDs, according to scientists at the University of Cambridge and Jilin University. Using a luminescent radical emitter, the researchers...
Legrand, Lumileds Enter Partnership
SAN JOSE, Calif., Nov. 27, 2018 — Legrand and Lumileds have announced a partnership agreement to bring a plug-and-play, tunable, white light to market. Under this agreement, Lumileds will provide its Luxeon-based intelligent light sources through its Matrix Platform. The devices are...
New Laser Architecture Taps Coherent Light to Probe and Control Matter
MENLO PARK and STANFORD, Calif., Nov. 26, 2018 — A new laser architecture called the Universal Light Modulator, developed by researchers affiliated with the SLAC National Accelerator Laboratory and Stanford University, uses coherent light to engineer complex light structures for probing and...
Photocatalyst Used to Create a Safe, Sustainable Building Block for New Drugs
ANN ARBOR, Mich., Nov. 26, 2018 — While searching for ways to use visible light to drive chemical reactions, a University of Michigan team found that by using photocatalysis, they could create a safe, inexpensive alternative to anilines, which are used for the development of new...
Researchers Customize Broadband Light Sources Using a Photonic Chip and AI
QUEBEC CITY, Canada, and BRIGHTON, England, Nov. 26, 2018 — Researchers from Institut National de la Recherche Scientifique (INRS) and the University of Sussex have collaborated to create an optical device that uses AI to control the properties of light. Using an actively controlled photonic chip, the...
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August 2024
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