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Research & Technology News
Manufacturing Fiber Optic Glass Under Pressure
STATE COLLEGE, Pa., Dec. 28, 2020 — Silica glass for fiber optics applications may perform better when manufactured under high pressure, according to research from Penn State and AGC Inc. in Japan. Researchers demonstrated that doing so reduced signal loss in the material. John C. Mauro, professor of materials science and engineering at Penn State, and his team used molecular simulations to evaluate the use of pressure when building optical fibers, showing that pressure quenching could reduce Rayleigh scattering loss by
Synthetic Aperture Phase Microscopy Enables Subcellular Imaging
HONG KONG, Dec. 28, 2020 — Researchers at The Chinese University of Hong Kong (CUHK) have developed a phase-reliant method of synthetic aperture microscopy (SAM). The method, introduced as “high spatial and temporal resolution synthetic aperture phase microscopy,”...
Endoscope Designed to Image 3D Visible, Near-Infrared Ranges
BEIJING, Dec. 24, 2020 — Researchers from the Chinese Academy of Science developed an endoscope capable of acquiring 3D visible light and near-infrared fluorescence images at the same time. The optical design combined high-resolution 3D imaging capabilities with the ability...
Nonlinear Beam Cleaning Developed for Mode-Locked Lasers
LAUSANNE, Switzerland, Dec. 22, 2020 — Researchers from École Polytechnique Fédérale de Lausanne (EPFL) have developed a method of nonlinear beam cleaning in a multimode laser cavity. The technique establishes a new approach for the generation of high-energy...
Chip-Based Source Creates Entangled Photons 100x More Efficiently
HOBOKEN, N.J., Dec. 21, 2020 — In pursuit of a fast and efficient source of entangled photon pairs necessary for quantum computing and ultrafast communications, researchers from Stevens Institute of Technology have developed a chip-based source capable of producing entangled...
Duke Researchers Take Aim at Neural Network Bias
DURHAM, N.C., Dec. 18, 2020 — A team of researchers at Duke University is addressing issues of transparency when it comes to the deep learning methods of neural computer vision systems. A technique the team has introduced aims to help to understand potential errors and biases in...
Photoacoustic Tech Allows Airborne Underwater Imaging
STANFORD, Calif., Dec. 17, 2020 — An airborne photoacoustic imaging system developed at Stanford University could aid in biological marine surveys and the search for sunken ships. The device is able to break through the threshold between air and water, which had previously been a...
Physics Helps Realize Efficient Electro-Optical Materials
WEST LAFAYETTE, Ind., Dec. 16, 2020 — A physics advance introduced by Purdue University researchers paves the way toward the creation of more efficient metamaterials. By using semiconductors and by amplifying electron activity, the researchers achieved a 60% improvement in operational...
Raman Holography Has Implications for Live Cell, Tissue Interrogation
CASTELLDEFELS, Spain, Dec. 16, 2020 — Researchers from the Institute of Photonic Sciences (ICFO) have successfully demonstrated holographic Raman microscopy. The technology is poised to support wide-ranging applications, from live cell and tissue interrogation to, potentially,...
3D-Printed Lens Design Improves Data Transfer Possibilities
CHAMPAIGN, Ill., Dec. 15, 2020 — A team of researchers from the University of Illinois has developed a spherical lens capable of allowing incoming light — from any direction — to be focused on the lens’s surface opposite the input direction into a very small spot....
Light-Activated Robot Walks, Rolls, Transports Cargo
EVANSTON, Ill., Dec. 15, 2020 — Researchers from Northwestern University developed a light-powered, life-like material that acts as a soft robot. It is capable of walking at human speed, picking up and transporting cargo to new locations, climbing hills, and even “break...
Compact RGB Scanning Projector Developed for Wearable Displays and Smart Glasses
FUKUI, Japan, Dec. 14, 2020 — Researchers from the University of Fukui, in collaboration with SEIREN KST Corp., a Japanese silicon manufacturer, are preparing to commercialize an image projector for eyewear displays. The team succeeded in creating an optical engine by...
Single Carbon Dot Emits Multiple Wavelengths of Light
DAEJON, South Korea, Dec. 14, 2020 — Researchers from the Korea Advanced Institute of Science and Technology (KAIST) have synthesized a collection of nanoparticles known as carbon dots, capable of emitting multiple wavelengths of light from a single particle. The team discovered that...
Synthetization Process Yields Green Light-Emitting Idolizines
MOSCOW, Dec. 11, 2020 — Chemists from the Peoples’ Friendship University of Russia (RUDN University) have introduced a new approach for synthesizing indolizines, a group of organic substances with biological and optical properties. The method, which uses pyridinium...
Laser-Based Sensor Simplifies, Improves Benzene Detection Capabilities
THUWAL, Saudi Arabia, Dec. 10, 2020 — Researchers from King Abdullah University of Science and Technology (KAUST) have developed a laser-based device capable of sensing extremely low concentrations of benzene. The sensor works in real time, helping monitor benzene emission levels. The...
Light-Matter Coupling Offers Implications for Quantum Optics
MINNEAPOLIS, Dec. 9, 2020 — An international research team led by the University of Minnesota Twin Cities has produced a quantum state that is part light and part matter. The research has implications for the next generation of quantum-based optical and electronic devices, and...
Optical Nanosensor Detects, Monitors Arsenic Level in Plants
SINGAPORE, Dec. 9, 2020 — A novel plant nanobionic optical sensor, capable of both detecting and, in real time, monitoring levels of arsenic in underground environments, exhibits changes in fluorescence intensity to indicate the presence and quantity of the metal. Scientists...
Light Powers Butterfly-Inspired Hydrogen Sensor
MELBOURNE, Australia, Dec. 7, 2020 — Butterfly wings are the inspiration for a light-activated hydrogen sensor device capable of producing ultraprecise results at room temperature. Tests demonstrated the sensor’s ability to detect hydrogen leaks before they develop to a point at...
Vector Photonics Appoints Calum Hill Development Engineer
GLASGOW, Scotland, Dec. 7, 2020 — Vector Photonics appointed Calum Hill to the position of development engineer. Hill will assist the technical team in developing PCSEL-based semiconductor laser technology for data communications applications. He previously worked at Laser Quantum,...
Nanoparticle Lasing Breakthrough Reduces Tissue Damage
SYDNEY, Dec. 4, 2020 — Researchers from the University of Technology Sydney (UTS) have demonstrated how a microcavity laser can produce energy-saving and user-safe laser emissions requiring low pump power. The work has implications for nanoscale biological applications....
Reflection Matrix Microscopy Could Expedite Neuroscience Research
DAEJON, South Korea, Dec. 4, 2020 — A South Korean research team has developed an optical microscope capable of maintaining spatial resolution and acquiring a microscopic “map” of neural network activity in brain tissue as it images through the width of an intact mouse...
OCT-Based Technique May Improve Cancer Diagnostics
DELFT, Netherlands, Dec. 3, 2020 — A method based on optical coherence tomography (OCT) could improve the abilities of scientists and medical personnel to evaluate biopsies. The technique, developed by researchers at TU Delft, images four times deeper than traditional OCT approaches....
3D Multiphoton Lithography Adds a New Dimension to Photonic Circuits
SINGAPORE, Dec. 2, 2020 — Using 3D multiphoton lithography, a method of 3D printing, researchers from Singapore University of Technology and Design (SUTD) demonstrated high-resolution 3D photonic structures capable of guiding light in a spiral and in an air-bridge...
Hollow-Core Fibers Outperform Silica Glass Counterparts
SOUTHAMPTON, England, Dec. 2, 2020 — Researchers from the University of Southampton Optoelectronics Research Centre (ORC) have introduced three unique hollow-core fiber designs that each exhibit losses comparable to or lower than those that solid glass fibers are able to achieve around...
Terahertz Radiation Technology Gets Under Skin for Diagnosis
COVENTRY, England, Dec. 1, 2020 — Collaborating scientists from the University of Warwick and the Chinese University of Hong Kong (CUHK) have demonstrated a method that uses terahertz radiation to improve the diagnosis of skin conditions such as eczema, psoriasis, and skin cancer....
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