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Research & Technology News
OCT Offers High Speed, Strong Resolution in Retinal Imaging
SEATTLE, Sept. 14, 2020 — Researchers at the University of Washington have modified the standard process of OCT (optical coherence tomography) to detect minute changes in response to light in individual photoreceptors in the living eye. The technique has potential in the testing of therapies such as stem cells or gene therapy to treat retinal disease. “Typically, retinal OCT systems are implemented by raster scanning a point of light across the retina. This provides excellent contrast, but at the cost of
Researchers Add Camouflaging Capability to Defense Drones
ADELAIDE, Australia, Sept. 14, 2020 — Researchers from the University of South Australia, in conjunction with Australia’s Department of Defence, have developed a range of lightweight panels capable of changing color on demand. The panels use electrochromic polymers, which change...
Single-Process and Inexpensive Optical Fiber Fabrication Method Will Enable Self-Production
SAO PAULO, Sept. 14, 2020 — Cristiano Cordeiro, a researcher and professor at the University of Campinas’ Physics Institute, has developed a method for fabricating optical fibers that is faster, simpler, and cheaper than conventional processes. The procedure roughly...
Luminate NY Innovation Finals Showcase Range and Depth of Photonic Innovation
ROCHESTER, N.Y., Sept. 11, 2020 — For the first time, Luminate NY is holding its Innovation Finals Competition in a virtual format, at an event on the opening day of The Optical Society’s (OSA) Frontiers in Optics + Laser Science Conference (FiO + LS) Sept. 14-17. Finalists...
Ghent Researchers, SERS, Perform and Demonstrate Sensitive Protease Monitoring
GHENT, Belgium, Sept. 11, 2020 — Researchers at Ghent University have detected protease using surface-enhanced Raman spectroscopy (SERS) performed with a tiny waveguide. The work moves toward real-time, label-free, lab-on-a-chip protease monitoring, which could offer a...
Laser Pulses Enable Tunable Spin Wave Excitation
MOSCOW, Sept. 11, 2020 — A team of researchers from the Moscow Institute of Physics and Technology (MIPT), the Russian Quantum Center, Saratov State University, and Michigan Technological University has demonstrated a method for controlling spin waves in nanostructured...
Ultrafast Yellow Laser Ramps Up the Power for Biomedical Applications
AHMEDABAD, India, Sept. 11, 2020 — Researchers at the Physical Research Laboratory at Gujarat University have developed a compact and ultrafast high-power yellow laser. The tunable laser shows excellent beam quality, helping fill a need for a practical yellow light source emitting...
All-Glass Fiber Optic Sensor Measures Force on Miniature Objects
WASHINGTON, D.C., Sept. 10, 2020 — A team of researchers has designed a tiny fiber optic force sensor, approximately equal in diameter to a human hair, capable of measuring extremely slight forces exerted by small objects. The light-based sensor is made of silica glass formed into a...
Imec and Ghent University Develop Artificial Iris
LEUVEN, Belgium, Sept. 9, 2020 — Imec and CMST, an imec-affiliated research group at Ghent University, along with their partners Instituto de Investigación Fundación Jiménez Díaz and imec’s Holst Centre, have developed an artificial iris embedded...
Understanding of Electrolyte Additives Will Improve Dye-Sensitized Solar Cells
PARKVILLE, Australia, Sept. 9, 2020 — An Australian research team has demonstrated that the molecules 4-tert-butylpyridine (tBP) and 1-methyl-benzimidazole (NMBI) play a role of crucial importance, as optimal additives, in maximizing the performance of copper redox meditators. An...
Ambient Light Alters Refraction in 2D Material
HOUSTON, Sept. 8, 2020 — A two-dimensional array of tantalum disulfide containing microscopic crystals possesses distinct optical characteristics that can be controlled in ambient conditions and under general illumination, according to researchers at Rice University. The...
Continuous, Stable Lasing Achieved with Perovskite Laser
FUKUOKA, Japan, Sept. 8, 2020 — A team of researchers from Kyushu University in Japan and Changchun Institute of Applied Chemistry in China has demonstrated stable, continuous lasing at room temperature for over an hour using low-cost perovskites. Perovskites have been an...
Researchers Use Lasers to Cheaply, Easily Fabricate Bioelectronics
CHICAGO, Sept. 8, 2020 — Researchers from the University of Chicago have found an easy, inexpensive, and scalable method for fabricating bioelectronics components using lasers. The technology has potential for use in medical applications, such as in pacemakers. The process...
Potential of Periodic Array System Supports Nanophotonics Applications
ALBUQUERQUE, N.M., Sept. 7, 2020 — A research team from the University of New Mexico (UNM) and the Autonomous University of Madrid has applied periodic arrays containing nanoparticles of different sizes — as opposed to more conventional arrays that contain nanoparticles of a...
Near-Optimal Chip-Based Photon Source Developed for Quantum Computing
BRISTOL, England, Sept. 4, 2020 — Researchers at the University of Bristol have developed a new CMOS-compatible silicon photon source that satisfies all the requirements necessary for large-scale photonic quantum computing. To meet the stringent requirements for single-photon...
New Way of Modulating Color Emissions from Transparent Films Found
TOKYO, Sept. 4, 2020 — Researchers at the Tokyo University of Science have described a method for easily tuning the luminescence of a newly modified light-emitting solid transparent material by modulating its proton concentration through the application of voltage. The...
Intravital Imaging Provides Insight into Liver Disease Progression
DAEJEON, South Korea, Sept. 3, 2020 — The high-resolution, 3D-viewing capabilities provided by a new microscopy method from the Korea Advanced Institute of Science and Technology (KAIST) could lead to insights into nonalcoholic fatty liver disease (NAFLD), a condition in which too much...
Photonic Chip Gives Raman Spectroscopy a Downsize
COLLEGE STATION, Texas, Sept. 3, 2020 — Researchers at Texas A&M University have invented a technology that can drastically downsize the apparatus used for Raman spectroscopy. “Raman benchtop setups can be up to a meter long depending on the level of spectroscopic resolution...
Structural Color Production Process Supports Soft Photonics Applications
LUXEMBOURG, Sept. 3, 2020 — By coating droplets of an aqueous solution of hydroxopropyl cellulose with silica nanoparticles, and placing these “liquid marbles” inside an organic solvent, scientists have successfully made and displayed structural colors from...
Cough-Recognition Camera Distinguishes Sounds Based on Deep Learning
DAEJEON, South Korea, Sept. 2, 2020 — The Korea Advanced Institute of Science and Technology (KAIST) and SM Instruments have developed a deep learning-based cough-recognition model that recognizes cough sounds in real time, and a camera that can track and record the sound of coughing...
Flexible Micro-LEDs May Reshape Future of Wearable Technology
DALLAS, Sept. 2, 2020 — Researchers from the University of Texas at Dallas and their international colleagues have developed a method to create micro-LEDs that can be folded, twisted, cut, and stuck to different surfaces. The technology aims to fill a demand for bendable,...
Infrared Spectroscopy Moves to the Fast Lane
TOKYO, Sept. 2, 2020 — Researchers at the University of Tokyo have developed a technique to drastically increase the speed of infrared spectroscopy. The technique, called time-stretch infrared spectroscopy, surpasses dual-comb spectroscopy nearly 10× over. The...
Lasers Allow Mass-Producible Microscopic Robots to Walk
ITHACA, N.Y., Sept. 1, 2020 — A collaboration led by Cornell University has created microscopic robots with semiconductor components that allow them to be controlled and made to walk with laser light and standard electronic signals. The robots are roughly the size of a...
Stanford Scientists Trap and Redirect Light with Resonant Nanoantennas
STANFORD, Calif., Sept. 1, 2020 — Researchers in the lab of professor Jennifer Dionne at Stanford University have structured ultrathin silicon chips into nanoscale bars to resonantly trap light, and then release or redirect it later. “We’re essentially trying to trap...
True Holographic Movie Within Reach
TOKYO, Sept. 1, 2020 — It’s been 43 years since audiences heard those famous words “Help me, Obi-Wan Kenobi. You’re my only hope” from a hologram projection in the first Star Wars film, yet true holographic movies, like the one R2-D2 projected of...
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