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Research & Technology News

Photodynamic Therapy Can Help Treat Respiratory Infections
SÃO PAULO, Aug. 11, 2020 — Photodynamic therapy can help combat secondary infections in COVID-19 patients, according to researchers at the Optics and Photonics Research Center (CEPOF), which is supported by the São Paulo Research Foundation. The researchers advocate photodynamic therapy as a complementary treatment for decreasing the viral and bacterial load in the patient’s respiratory tract. The compounds used in photodynamic therapy interact with light to produce singlet oxygen, a highly reactive
SMILES Brighten Fluorescent Materials
BLOOMINGTON, Ind., Aug. 11, 2020 — A joint effort between researchers at Indiana University and the University of Copenhagen has yielded a new class of materials, called small-molecule ionic isolation lattices (SMILES), which the researchers say are the brightest fluorescent...
Laser Beam’s Behavior Runs Counter to Normal Laws of Refraction
ORLANDO, Fla., Aug. 10, 2020 — A type of laser beam that does not follow the classical laws of refraction, discovered by a team at the University of Central Florida (UCF), could offer new opportunities for shaping the flow of light beams used for optical communications and laser...
Quantum Secret Sharing Uses Structured Light to Achieve High-Dimensional States
JOHANNESBURG, Aug. 10, 2020 — Researchers at the University of the Witwatersrand (Wits) demonstrated an 11-dimensional quantum state and used it to share sensitive information securely from one sender to 10 parties. They used structured light to achieve a high-dimensional...
The Optical Society Schedules Virtual Quantum Conference for September
WASHINGTON, D.C., Aug. 10, 2020 — The first OSA Quantum 2.0 conference, an all-virtual event scheduled for Sept. 14-17, 2020, will feature high-impact presentations by experts on quantum research and commercial development and will bring together scientists, engineers, and others...
AFM and Nonlinear Optics Combine to Improve Optical Defect Detection
MONTREAL, Aug. 7, 2020 — A technique for detecting nanosize imperfections in optical materials could lead to improvements in detector technologies for applications ranging from cellphones to solar cells. The technique developed by a McGill University research team uses...
Marine Algae Optical Fiber Boasts Applications in Range of Medical and Scientific Environments
SÃO PAULO, Aug. 7, 2020 — Researchers at the University of Campinas (UNICAMP) in Brazil and Gunma University in Japan have designed an optical fiber from agar, the natural gelatin obtained from marine algae. In addition to being edible, the fiber is biodegradable and...
Optical Pliers Made with Smart, Flexible Material Operate Remotely
WARSAW, Poland, Aug. 7, 2020 — Liquid crystal elastomer (LCE) technology was applied to practical use by a group of researchers who used this material to demonstrate a miniaturized gripping tool grown on optical fibers. Scientists from the University of Warsaw worked with...
International Research Team Applies Metasurface Photonic Device Potential to Cold Atom Quantum Technology
BIRMINGHAM, England, Aug. 6, 2020 — Researchers at the UK Quantum Technology Hub Sensors and Timing, led by the University of Birmingham, have designed and implemented an approach for miniaturizing devices used in quantum sensing systems. A new technique for shrinking the size of...
RADx COVID-19 Testing Proposals Advance into Phase II
BETHESDA, Md., Aug. 6, 2020 — The National Institutes of Health’s (NIH) Rapid Acceleration of Diagnostics (RADx) program has inked seven contracts, totaling nearly $250 million in combined funding, in its effort to expand COVID-19 testing capabilities. The RADx program was...
Single-Crystal Perovskites Made with Standard Practices Are Stable, Flexible
LA JOLLA, Calif., Aug. 6, 2020 — Engineers at the University of California, San Diego have developed a way to fabricate perovskites as single-crystal thin films. The method, which uses standard semiconductor fabrication processes including lithography, produces flexible,...
Biophotonic Device from International Consortium Aims to Support Current and Forthcoming COVID-19 Therapies
BARCELONA, Spain, Aug. 5, 2020 — A team of researchers from the Institute of Photonic Sciences (ICFO) and experts in the field of diffuse optics are collaborating on the creation of a biophotonic device designed to test the efficiency of individualized COVID-19 treatments targeting...
Nanoparticles with Plasmonic Effect Boost Photocatalysis
GRAZ, Austria, Aug. 5, 2020 — Researchers at Graz University of Technology (TU Graz) developed a method for assembling plasmonic nanoparticles for specific applications. Their approach was to synthesize so-called core-shell clusters inside helium nanodroplets, with subsequent...
Researchers Structure Propagation-Invariant Light Fields Using Caustics
MÜNSTER, Germany, Aug. 5, 2020 — Researchers at the University of Münster, the University of Birmingham, and the University of Marseille demonstrated a way to shape propagation-invariant light beams arbitrarily by using a smart-beam design based on caustics. Their approach...
3D Printing Provides Building Blocks of Healing in Scaffold Design
PORTLAND, Ore., Aug. 4, 2020 — A group of researchers has demonstrated that assembling a network of tiny, approximately 1.5-mm3 blocks with the aid of optical technology can be an effective way to accelerate healing in tissue and bone. Using Lego blocks as inspiration, they even...
Artificial Intelligence Brings Specificity to Label-Free Imaging for Assisted Reproduction
URBANA, Ill., Aug. 4, 2020 — As part of a project to develop specific traits in cattle that would make them resistant to heat and diseases in tropical regions, researchers at the University of Illinois at Urbana-Champaign developed a phase-imaging technique to determine which...
Metasurface Added to Photonic Chip to Improve Footprint, Control
STATE COLLEGE, Pa., Aug. 4, 2020 — A team of researchers at Penn State has integrated metasurfaces onto a photonic integrated circuit (PIC) chip. The design maintains high light controllability, allowing guided waves inside the PIC to drive the metasurfaces, enabling routing light...
Femtosecond Lasers Etch Superwicking Metal Surface for Water Purification System
ROCHESTER, N.Y., Aug. 3, 2020 — Led by Chunlei Guo, a professor in the University of Rochester’s Institute of Optics, a team of scientists has demonstrated how ultrashort femtosecond laser pulses etch the surface of a sheet of metal (in this research, aluminum) into a super...
Researchers Miniaturize Imaging Device Using 3D Microprinted Camera Lens
ADELAIDE, Australia, Aug. 3, 2020 — Researchers from the University of Adelaide and the University of Stuttgart have developed an ultrathin endoscope small enough to scan images from inside the blood vessels of mice. In humans, the scope will help scientists better understand causes...
Researchers Turn Laser Sintering on Its Head
NEW YORK, Aug. 3, 2020 — Selective laser sintering (SLS), a process that uses a laser to heat powder materials to the point where the micron-scale particles fuse together to form a solid mass, is one of the most widely used additive manufacturing processes today. Until now,...
Marine Luminescence Appears After Stress Test
CAMBRIDGE, England, July 31, 2020 — No matter how small, organisms respond to their surrounding environment. A group of scientists at the University of Cambridge has shown that the light produced by ocean organisms is related to the stress their cells are under at the time. The team,...
Photonic Crystal Generates VUV Light at Wavelengths Suitable for Spectroscopy
TOKYO, July 31, 2020 — Researchers at the University of Tokyo have created a tabletop device that efficiently generates circularly polarized vacuum ultraviolet (VUV) light using an ultrathin film with nanoscale perforations. VUV wavelengths, which can be absorbed by air...
Tunable Laser Determines Best UV Wavelengths for Germ Eradication
GAITHERSBURG, Md., July 31, 2020 — While awaiting full access to their labs due to COVID-19 restrictions, scientists at the National Institute of Standards and Technology (NIST) have taken the time to report on research conducted in 2012 on the disinfection of drinking water using...
Mirror Specifications and Energy-Efficient Design Support Increasingly Portable System for Laser Precision at Room Temperature
CAMBRIDGE, Mass., July 30, 2020 — A team of MIT physicists, working with researchers from Louisiana State University (LSU) and Crystalline Mirror Solutions (CMS, now part of Thorlabs Inc.) has designed a quantum “light squeezer” capable of limiting quantum noise in laser...
Robust Laser Technology Will Enable Satellite to Measure Greenhouse Gas
BERLIN, July 30, 2020 — The MERLIN satellite, a collaboration between DLR RfM in Germany and CNES in France, will use a radar-like laser system to measure the methane concentration in Earth’s atmosphere. The satellite’s Integrated Path Differential Absorption...

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