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  • Self-Heating in OLEDs Can Cause Decrease in Luminance January 16, 2020
    When LEDs and transistors are connected in parallel, even slight differences in resistance can lead to imbalanced current flow. If the devices heat up, this can lead to even greater imbalances. This is especially true for OLEDs. A large-area OLED lighting panel is essentially a parallel connection composed of many individual OLEDs, and as a […]
  • Diagnosis is in the details January 16, 2020
    The emphasis on accurately measuring everything from cancerous growths in our own organs to chemical components in the world around us is a driving force behind modern research. And scientists are doing this work alongside doctors and engineers to bring the full force of photonics into the marketplace and into the lives of people around […]
  • Majorana: The So-Called Angel Particle Was Not Discovered January 16, 2020
    A research team at Penn State, partnering with the University of Würzburg in Germany, has flagged a 2017 discovery of Majorana fermion as a false alarm. An exotic quantum state known as a “chiral Majorana fermion” is predicted in devices wherein a superconductor is affixed on top of a quantum anomalous Hall (QAH) insulator (left […]
  • Tuned Resonators Allow Control of Electromagnetically Induced Transparency January 16, 2020
    Researchers at Washington University in St. Louis have devised an optical resonator system that can be used to turn transparency on and off. The ability to manipulate electromagnetically induced transparency (EIT) without the introduction of an outside influence, such as additional photons, could provide scientists and engineers with more precise control over how much light […]
  • Diabetic Smart Contact Lenses Developed by South Korean Research Team January 15, 2020
    A research team from Pohang University of Science and Technology in South Korea (POSTECH) developed technology that allows diagnosis of diabetes and treatment of diabetic retinopathy by wearing smart light-emitting diode (LED) contact lenses. Professor Sei Kwang Hahn and his research team, including his Ph.D. student, Geon-Hui Lee, invented a smart photonic contact lens and […]
  • Scientists Analyze Final Images from Cassini January 15, 2020
    Toward the completion of its 13-year mission, which ended in September 2017, the Cassini spacecraft performed a set of orbits that brought it closer to Saturn than ever before. By passing over the planet’s polar regions at a low altitude, Cassini’s ultraviolet camera could observe Saturn’s auroras at an unprecedented resolution. Scientists at Lancaster University […]
  • Colloidal Quantum Dot Laser Diodes on the Horizon January 15, 2020
    Scientists at Los Alamos National Laboratory have incorporated meticulously engineered colloidal quantum dots into a new type of LED containing an integrated optical resonator, which allows the LEDs to function as lasers. The researchers demonstrated an operational LED that also functioned as an optically pumped, low-threshold laser. To achieve those goals, they incorporated an optical […]
  • CAREER Award Recipient to Explore Potential of Promising New Material January 14, 2020
    Sufei Shi, an assistant professor of chemical and biological engineering at Rensselaer Polytechnic Institute (RPI), is the recipient of the CAREER grant award. The National Science Foundation Faculty Early Career Development Program (CAREER) grant will allow Shi and his team to explore new uses of transition metal dichalcogenides (TMDCs) in an optoelectronic device. Two-dimensional semiconductors, […]
  • New Rules Reveal How an Object’s Scale Affects Its Interaction with Light January 14, 2020
    Princeton researchers have uncovered rules pertaining to how objects absorb and emit light. Their discovery addresses how the scale of an object affects the way it interacts with light. The new rules will tell scientists how much infrared (IR) light an object of any scale can be expected to absorb or emit. The movement of […]
  • Coherent Shares Rose 10% in December After Spring Downturn January 14, 2020
    Coherent Inc. (Nasdaq:COHR) saw its shares rise 10.3% over the last 30 days of 2019. The swift growth was due in part to new investments in the company’s manufacturing infrastructure as well as ongoing negotiations in international trade wars. Overall, Coherent shares increased by 64% over the calendar year. By the end of November, Coherent’s […]
  • Deep Learning Speeds 3D Microscopic Neuroimaging January 14, 2020
    Using deep learning techniques, researchers from the Salk Institute have developed a new microscopy approach that could make microscopic techniques used for brain imaging 16 times faster. The researchers trained their deep learning system using data from the Texas Advanced Computing Center (TACC) at The University of Texas at Austin (UT Austin). Uri Manor, director […]
  • LED Lighting Provides Energy Efficiency, But Needs Standards January 14, 2020
    With the growing popularity of LED lighting, scientists are looking to study its effects on plant growth. However, a lack of standards has made studies unreliable. While LED lighting can enhance plant growth in greenhouses, standards are needed to determine the optimal intensity and colors of light, according to research from Rutgers University that could […]
  • Quantum Loop Provides Testbed for Quantum Communications January 13, 2020
    Scientists from the U.S. Department of Energy’s (DOE) Argonne National Laboratory and the University of Chicago (UChicago) have launched a quantum loop, consisting of two connected, 26-mile fiber optic cables that run between Argonne and the Illinois tollway near Bolingbrook, Ill., and back. At 52 miles, it is one of the longest ground-based quantum communication […]
  • Using Microwave Metamaterials in Machine Learning Speeds Object Recognition January 13, 2020
    A new approach to object identification, developed by researchers at Duke University and the Institut de Physique de Nice (INPHYNI), enables joint learning of optimal measurement strategies and a matching processing algorithm, and uses inferred knowledge about task, scene, and measurement constraints to improve the accuracy of object recognition tasks while using a limited number […]
  • Microresonator Measures and Images Nanoparticles with High Degree of Sensitivity January 13, 2020
    Scientists at the Okinawa Institute of Science and Technology (OIST) Graduate University have developed a light-based device that can act as a biosensor, detecting biological substances in materials, such as harmful pathogens in food. The scientists said that their tool, an optical microresonator, is 280× more sensitive than current industry-standard biosensors, which can detect only […]
  • National Inventors Hall of Fame Announces R. Rox Anderson, 2020 Inductees at CES January 13, 2020
    Dr. Richard Rox Anderson, inventor of laser dermatology, is a 2020 inductee in the National Inventors Hall of Fame (NIHF). A total of 22 innovation pioneers were announced as the 2020 class of Inductees on stage at CES on Jan. 7. Dr. Richard Rox Anderson. Courtesy of National Inventors Hall of Fame. Anderson’s contributions include […]
  • What’s Your Edge? January 12, 2020
    There are more than 500 photonics companies that sell lasers. When it comes to optics, you have your pick from more than 1200. None of these companies are the same. In fact, it’s hard to observe any discernable trend of characteristics among these suppliers. Sure, we’ve all been seeing the general trend of mergers and […]
  • Active Thermal Detection Could Broaden Use of Superresolution Techniques January 10, 2020
    Be it light, sound, or an electromagnetic wave, a probe beam operates the same way — the beam gets sent ahead and a wave of the same nature is reflected back. The absorbed energy is converted to heat, for which there has been no perceived use until now. Researchers at the Institute for Basic Science […]
  • Moth Flight Patterns Help Drones Navigate Complex Environments January 10, 2020
    Researchers from Boston University (BU) have captured data from moth flight patterns to improve drone navigation through complex environments. To understand how moths plan their route, the researchers, led by Ioannis Paschadilidis at BU and Thomas Daniel at the University of Washington, mounted eight hawk moths (Mantuca sexta) on metal rods connected to a torque […]
  • SPIE Announces Its 2020 Fellows January 9, 2020
    SPIE, the international society for optics and photonics, has announced 72 members as new fellows of the society for 2020. Fellows are members of the society who have made significant scientific and technical contributions in the multidisciplinary fields of optics, photonics, and imaging. Since the society’s inception in 1955, 1538 SPIE members have become fellows. […]