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Research & Technology News

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 sensor, developed by a team led by Aamir Farooq, features walls that consist of two parallel, concave mirrors. The mirrors are positioned to face one another, forming a cavity around a gas sample. The cavity traps a laser beam, which repeatedly
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....
3D Printing Offers Versatility in Optical Design
LIVERMORE, Calif., Nov. 30, 2020 — Researchers at Lawrence Livermore National Laboratory (LLNL) used multimaterial 3D printing to develop tailored gradient refractive index glass optics, delivering a result that could enable the manufacture of improved military specialized eyewear...
Researchers Develop Open-Source Modular Microscope
JENA, Germany, Nov. 30, 2020 — Researchers from the Leibniz Institute of Photonic Technology (Leibniz IPHT), Friedrich Schiller University, and Jena University Hospital developed a low-cost modular microscope that has the potential to greatly expand access to high-resolution...
Ultrafast Manufacturing of Perovskite Solar Modules
STANFORD, Calif., Nov. 27, 2020 — An ulftrafast method for manufacturing and assembling stable perovskite solar modules has been developed at Stanford University. The technique, according to study author Reinhold Dauskardt, resolves some of the most formidable barriers to...
Laser Method Makes Intense Mid-IR Pulsing More Practical
VIENNA, Nov. 24, 2020 — Research efforts from Vienna University of Technology, in collaboration with Harvard University, have led to the development of a laser method that increases the practicality and usability of mid-infrared pulsed lasing. Infrared lasers capable of...
Simulation Shows Possibility of Laser Scalpel with Curved Blade
TOMSK, Russia, Nov. 24, 2020 — Relying on a photonic hook, or a subwavelength self-bending structured light beam, an international team of researchers proposed the creation of a curved laser blade for a medical scalpel. Currently, there are laser scalpels in use that feature...
Observing Nonlinear Ionization Dynamics of Hot Dense Plasma
JENA, Germany, Nov. 23, 2020 — A team of researchers from the University of Jena has observed the successful formation and interaction of highly ionized krypton plasma, using femtosecond coherent ultraviolet light and a novel four-dimensional model. The research may ultimately...
VCSELs Employ Slow Light to Boost Speed
WASHINGTON, D.C., Nov. 20, 2020 — George Washington University (GWU) researchers have combined multiple transverse coupled cavities to develop a new vertical-cavity surface-emitting laser (VCSEL). The cavities in the laser system enhance the laser’s optical feedback...
Researchers Push Boundaries of High-Energy Laser Pulses
QUEBEC CITY, Nov. 20, 2020 — INRS researchers have pushed the boundaries of high-energy laser pulse propagation, with reliance on the observation of high-energy multidimensional solitary states (MDSS), allowing the direct generation of extremely short and intense laser pulses...
Tracking Photons in the Infrared
ISLAMABAD, Pakistan, Nov. 20, 2020 — Scientists from NUST MISIS Technological Initiative Center are developing a prototype of an infrared photon video detector. The camera, believed to be the first of its kind, will have applications in secure communications including satellite,...
Electronic, Light-Powered Chip Delivers Smarter AI
MELBOURNE, Australia, Nov. 19, 2020 — A chip that brings together imaging, processing, machine learning, and memory is enhancing artificial intelligence by imitating the way the human brain processes visual information. The device is inspired by optogenetics; the biotechnological tool...
Superresolution on the SPOT: Imaging Achieves Optical Sectioning
SYDNEY, Nov. 19, 2020 — A technique called SPOT (spectrum and polarization optical tomography) is providing researchers with a “street view” of lipid membranes surrounding cell organelles, thereby allowing insight into lipid dynamics. The work is the result of...
Metalens Microscopy Eliminates FOV Constraints
NANJING, China, Nov. 18, 2020 — Researchers from Nanjing University are using metalenses to enhance and shrink microscopes while maintaining resolution with a large field of view. In pursuit of a more compact integrated microscope system, Tao Li, professor of engineering and...
Multipass Spectroscopy Seeks Disease Biomarkers in Breath
WASHINGTON, D.C., Nov. 18, 2020 — An optical sensing method developed by a research team at the University of Warsaw relies on highly sensitive spectroscopic measurements to detect the presence or absence of formaldehyde in a person’s breath. The breath test is based on...
Extra Level Helps Convert Light Energy into Surface Waves on Graphene with Increased Efficiency
MOSCOW, Nov. 17, 2020 — Collaborating physicists from two Russian universities have successfully converted light energy into surface waves on graphene at nearly 90% efficiency. A so-called laser-like energy conversion process with collective resonances, and semiconductor...

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