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Technology News News
Laser Technology Mobilizes Head Trauma Assessment
BIRMINGHAM, England, Dec. 14, 2023 — The decisions made about patient care in the hour following a traumatic brain injury (TBI) are critical to patient outcome. A hand-held diagnostic device to assess the severity of the injury immediately, at the point of care, could make the difference between a successful outcome or irreversible brain damage following a TBI. To enable timely intervention, researchers at the University of Birmingham are developing a portable noninvasive diagnostic to quickly measure the extent of cerebral
EUV Sources Track Molecular Dissociation in Tandem
HEIDELBERG, Germany, Dec. 12, 2023 — Reportedly for the first time, scientists have combined a broadband extreme-ultraviolet (EUV) probe pulse from high-order harmonic generation (HHG) with a free-electron laser (FEL) pump pulse to observe photodissociation pathways leading to...
Optofluidics Yields a Better Reflective Display
GUANGZHOU, China, Dec. 12, 2023 — With the advent of the IoT, there is increased need to display large amounts of information to people quickly and without distortion in all types of lighting conditions. Though transmissive and emissive displays such as LEDs and OLEDs are widely...
Optical Data Storage Dips Below the Diffraction Limit
NEW YORK, Dec. 6, 2023 — Physicists at The City College of New York (CCNY) have developed a technique with the potential to enhance optical data storage capacity in diamonds. This is possible by multiplexing the storage in the spectral domain. “It means that we can...
Nanowire Single-photon Detector Lets Machines See Through Walls
TIANJIN, China, Dec. 5, 2023 — Using a superconducting nanowire single-photon detector (SNSPD) as the light-sensing element, researchers from Tianjin University demonstrated non-line-of-sight (NLOS) imaging at two infrared (IR) wavelengths, 1560 nm and 1997 nm. NLOS systems...
Compact Accelerator Achieves a Major Energy Milestone
AUSTIN, Texas, Dec. 4, 2023 — A compact particle accelerator developed by the University of Texas at Austin, several national laboratories, and the Texas-based company TAU Systems has produced an electron beam with an energy of 10 billion electron volts (10 GeV). The...
Mathematically Enhanced Photonic Chip Simplifies Data Processing
MILAN, Italy, Dec. 4, 2023 — Researchers from Politecnico di Milano, Scuola Superiore Sant’Anna, the University of Glasgow, and Stanford University have created photonic chips that mathematically calculate the optimal shape of light to best pass through any environment,...
Imperfections Untether Quantum Sensors from Bulky Optics
GAITHERSBURG, Md., Nov. 30, 2023 — By adding tiny, periodic bumps to a microresonator, researchers were able to convert near-infrared (NIR) laser light into specific desired wavelengths of visible light with high accuracy and efficiency. Developed by the National Institute of...
Micrometric Photovoltaic Cells Aim To Shrink Electronic Devices
OTTAWA, Ontario, Nov. 28 2023 — Researchers have manufactured back-contact micrometric photovoltaic cells, a world-first, according to the multi-institutional collaborators. The work paves the way for a new era of miniaturization for electronic devices. The cells, with a size...
Algorithm Boosts Live-Cell Imaging's Capabilities
OEIRAS, Portugal, Nov. 27, 2023 — Superresolution radial fluctuations (SRRF), a superresolution algorithm, works by observing fluctuations in radial symmetry throughout the frames of an image. SRRF supports live-cell, superresolution microscopy on a range of microscopy platforms...
Plasma-infused Pulse Compression Proposes Pathway to Zettawatt Lasers
GLASGOW, Scotland, Nov. 21, 2023 — The ability to compress laser pulses to ultrahigh powers could open the way for compact lasers in the order of exawatt and above. Such powerful lasers would enable scientists to push the limits of physical science by deepening their study of the...
Hybrid Photoresist Helps Meet Demand for Smaller Chips
UPTON, N.Y., Nov. 14, 2023 — To achieve performance gains in microelectronics, semiconductor size continues to shrink, with feature sizes now in the sub-10-nm range. The challenges associated with the extreme downscaling of semiconductors have led to the adoption of a powerful...
Chip-scale Mode-Locked Laser Charts Course for Integrated Sensing
NEW YORK, Nov. 13, 2023 — Researchers from the City University of New York (CUNY) Graduate Center and the California Institute of Technology (CalTech) have shrunk a mode-locked laser (MLL) to the size of an optical chip with an integrated nanophotonic platform. The results...
Low-Power Optical Tweezers Protect Bioparticles from Damage
AUSTIN, Texas, Nov. 10, 2023 — Optical tweezers trap and manipulate minute particles with light. The technology is used across fields, ranging from manufacturing to biotech, though it requires the use of high-powered lasers to ensure proper function. These lasers can damage the...
Multimodal Solution Points to Broader Adoption of Metamaterials
POHANG, South Korea, Nov. 9, 2023 — Metamaterials, artificial nanostructures that manipulate light, are costly and technologically challenging to fabricate. The broad, practical use of metamaterials depends on lowering their manufacturing cost and making them easier to create....
Virtual Superlens Passes Diffraction Limit Without Distortion
SYDNEY, Nov. 6, 2023 — The diffraction limit enforces physical restrictions on how closely an object can be examined using traditional optical methods. Previous attempts to develop superlenses that image beyond the diffraction limit have met with extreme visual losses, to...
Photonic Crystals Imitate Gravitational Effects on Light
SENDAI, Japan, Oct. 25, 2023 — A group of researchers has replicated the way that light would behave if it were subject to gravity, supporting a recent scientific theory about pseudogravity. According to the theory, pseudogravity, a phenomenon replicating the effects of gravity,...
Compact Quasiparticle Light Source Could Rival FELs' Brightness
ROCHESTER, N.Y., Oct. 24, 2023 — An international team of scientists is rethinking the principles of radiation physics, with the goal of creating super-bright light sources that are compact and relatively convenient to use. Coherent light sources such as free-electron lasers (FELs)...
Demonstration Moves On-chip Particle Accelerators One Step Closer
ERLANGEN, Germany, Oct. 23, 2023 — Particle accelerators range in size from a few square meters to large research centers. Using lasers to accelerate electrons within a photonic nanostructure constitutes a microscopic alternative with the potential of generating significantly lower...
Perovskite Cells Sustain Stability at High Temperatures
HONG KONG, Oct. 23, 2023 — Researchers at City University of Hong Kong have developed perovskite solar cells capable of maintaining stability at high temperatures. According to the researchers, the work paves the way to commercialization. Perovskite solar cells have been a...
Flexible Optogenetic Tool Blocks Pain, Not Movement
CAMBRIDGE, Mass., Oct. 20, 2023 — Engineers at MIT have developed soft and implantable fibers that can deliver light to major nerves through the body. When these nerves are genetically manipulated to respond to light, the fibers can send pulses of light to the nerves to inhibit...
Modified Photodiode Enables Multifunctional, High-Performance PICs
CHENGDU, China, Oct. 19, 2023 — Thin-film lithium niobate (TFLN) shows strong potential as a platform for integrated photonics, due to its robust electro-optic coefficient, large optical nonlinearity, and wide transparency window. TFLN is used in the development of various...
UV-based 3D Printing Accelerates Multipurpose Glass Production
ATLANTA, Oct. 18, 2023 — Current 3D-printing techniques for fabricating glass involve time-consuming processes that require high temperatures and considerable resources to complete. In a new approach, a research team at the Georgia Institute of Technology (Georgia Tech)...
Birefringent Metasurface Aims to Transform Waveplate Tech
LIVERMORE, Calif., Oct. 17, 2023 — Lawrence Livermore National Laboratory (LLNL) researchers have adapted their novel metasurface process, which creates a thin layer on the surface of an optic, to create an all-glass metasurface with birefringence, or dual refraction, properties....
Electro-Optic Modulators Improve Signal Quality and Cancel Noise
ORLANDO, Fla., Oct. 12, 2023 — Delays in optical data transmission cause inconvenient lag times in communications and interfere with immersive experiences like gaming. Two factors that adversely affect the speed and reliability of optical communication are signal distortion over...
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May 2024
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