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Dual Laser System Offers a View into Laser-Plasma Interaction Dual Laser System Offers a View into Laser-Plasma Interaction
BERKELEY, Calif., Dec. 19, 2024 — Scientists at Lawrence Berkeley National Laboratory (Berkeley Lab) used lasers and a supersonic sheet of gas to accelerate a high-quality beam of electrons to 10 billion electronvolts (eV) in just 30 cm. The energy and quality of the beam is a significant improvement compared to previous efforts. The acceleration of a high-quality, 10-gigaelectronvolt (GeV) electron beam in less than one foot, using a petawatt (PW) laser, is a major step forward in laser-plasma acceleration.
NIR Diffuse Optic, Ultrasound Device Characterizes Thyroids NIR Diffuse Optic, Ultrasound Device Characterizes Thyroids
CASTELLDEFELS, Spain, Dec. 19, 2024 — Thyroid diseases affect approximately 200 million people worldwide. In most thyroid pathologies, the vascularization – the number and structure of blood vessels – and hemodynamics are altered. A better understanding of both could help...
Quantum Ghost Imaging Safely Images Live Plants Using IR Light Quantum Ghost Imaging Safely Images Live Plants Using IR Light
WASHINGTON, D.C., Dec. 17, 2024 — Quantum ghost imaging (QGI), a technique that leverages quantum mechanics to capture images at extremely low light levels, could provide a way to image living plants without exposing them to harmful wavelengths. QGI also removes the need to insert...
Light-Based Communication Connects Air, Land, Sea Light-Based Communication Connects Air, Land, Sea
NANJING, China, Dec. 16, 2024 — A team of researchers from Nanjing University of Posts and Telecommunications has demonstrated a prototype mobile all-light communications network, paving the way for seamless connectivity across air, land, and underwater environments, even when...
Miniature Microscopes May Probe Hard-to-Reach Places in the Body Miniature Microscopes May Probe Hard-to-Reach Places in the Body
ADELAIDE, Australia, Dec. 16, 2024 — A technique from researchers at the University of Adelaide could enable microscopic imaging to be performed through a very thin optical fiber. The new technique could make it possible to image areas in the body that are difficult to reach using...
UV Etching Controls Diamond Surfaces UV Etching Controls Diamond Surfaces
SYDNEY, Dec. 13, 2024 — In a step toward making diamond a viable material for semiconductors and quantum applications, researchers at Macquarie University developed an etching technique for modifying the surface chemistry of diamond. The highly precise technique can be...
Compact Device Combines Light Sensing and Modulation Capabilities Compact Device Combines Light Sensing and Modulation Capabilities
SAN FRANCISCO, Dec. 12, 2024 — A device developed by researchers at CEA-Leti combines the ability to sense light and modulate it accordingly, by pairing a liquid crystal cell and a CMOS image sensor into a single device. According to the researchers, this is the first time a...
International Team Grows Electrically Pumped Laser on Silicon Wafer International Team Grows Electrically Pumped Laser on Silicon Wafer
JÜLICH, Germany, Dec. 12, 2024 — An international research team has developed an electrically-pumped continuous wave semiconductor laser suitable for seamless silicon integration. According to the team, this is the first laser of its kind directly grown on a silicon wafer....
Solar-Based Synaptic Device Boosts Edge AI Efficiency for Optical Sensing
TOKYO, Dec. 11, 2024 — In-sensor edge artificial intelligence (AI) devices are increasingly used to predict events that require an immediate response, from natural disasters to medical emergencies. To predict emergency events in advance, edge AI devices must be able to...
Microscopy Method Provides Quality Control for Digital Manufacturing Microscopy Method Provides Quality Control for Digital Manufacturing
CAMBRIDGE, England, Dec. 10, 2024 — The growth in digital manufacturing has intensified the need for fast, reliable quality control methods to assess the microstructures of critical metal parts, like those used in aerospace. While 3D scanners and other technologies are available to...
Microscopy Method Supports 3D, Multitargeted Cell Imaging at Nanoscale Microscopy Method Supports 3D, Multitargeted Cell Imaging at Nanoscale
HOUSTON, Dec. 10, 2024 — A new microscopy platform could improve investigations into the mechanisms that drive cellular behavior by providing fast, precise 3D imaging of multiple cellular structures at the nanoscale, while allowing flexible control of the extracellular...
Study Prods Possible Link Between Solar Panels, Building Fires
THE HAGUE, Netherlands, Dec. 10, 2024 — With the growing popularity of solar energy systems, concerns about fire risks have also risen. However, it is challenging to determine whether the solar panels were the cause of the fire and under what circumstances the fire started. Also, until...
Quantum Dot Recycling Improves Sustainability of Lasers Quantum Dot Recycling Improves Sustainability of Lasers
WASHINGTON, D.C., Dec. 9, 2024 — To make quantum dot technology more sustainable, researchers at the University of Strathclyde developed a practical, inexpensive way to recycle the colloidal quantum dots (CQDs) used to make microscopic supraparticle (SP) lasers. The researchers...
Metasurface-Enabled Camera Optimized for AR/VR Devices Metasurface-Enabled Camera Optimized for AR/VR Devices
SEOUL, South Korea, Dec. 2, 2024 — Researchers from Seoul National University have developed a folded lens system using metasurfaces to dramatically reduce the volume of cameras. By arranging metasurfaces on a glass substrate so that light can be reflected and moved around in the...
Micro-LEDs Show Potential for Neuromorphic Computing Micro-LEDs Show Potential for Neuromorphic Computing
BRAUNSCHWEIG, Germany, Dec. 2, 2024 — Known for their energy efficiency, light-emitting diodes (LEDs) are also opening up completely new possibilities for applications beyond lighting: by using a neuron network of microscopic LEDs for the artificial intelligence (AI) of tomorrow, a...
LED Light Breaks Down Forever Chemicals that Harm the Environment LED Light Breaks Down Forever Chemicals that Harm the Environment
FORT COLLINS, Colo., Nov. 29, 2024 — The durability of PFAS has led to their widespread use in medical, industrial, and commercial settings throughout the world. These “forever chemicals” are made of inorganic materials that break down very slowly. They are difficult to...
Liquid Crystal Lens Filters out Light that Causes Seizures Liquid Crystal Lens Filters out Light that Causes Seizures
GLASGOW, Scotland, Nov. 26, 2024 — In people who experience photosensitive epilepsy, seizures can be triggered by visual stimuli, like video games, that are displayed at certain wavelengths. Lenses made with cholesteric liquid crystal (CLC), a material that is sensitive to changes in...
Solar Lasers Could Power Future Space Missions Solar Lasers Could Power Future Space Missions
EDINBURGH, Scotland, Nov. 26, 2024 — An international research team is working to develop a technology that directly converts sunlight into laser beams in order to enable the transmission of power over vast distances. The approach, inspired by photosynthesis, could allow power to be...
Optogenetics Technique Could Replace Surgical Treatments for Seizures Optogenetics Technique Could Replace Surgical Treatments for Seizures
SANTA CRUZ, Calif., Nov. 25, 2024 — Researchers from three University of California (UC) campuses collaborated on an optogenetics-based approach to controlling abnormal neural activity in humans. Their findings could someday provide an alternative to surgery for patients who have...
Theory Posits the Physical Shape of a Single Photon Theory Posits the Physical Shape of a Single Photon
BIRMINGHAM, England, Nov. 25, 2024 — A theory posited by University of Birmingham researchers explores the nature of photons in unprecedented detail to show how they are emitted by atoms or molecules and shaped by their environment. The theory explains how light and matter interact at...
Quasicrystals Create Light Vortices to Transmit More Data with Fiber Optics Quasicrystals Create Light Vortices to Transmit More Data with Fiber Optics
ESPOO, Finland, Nov. 21, 2024 — As the demand for data storage grows, better ways to encode large amounts of data for rapid transmission are required. One method of transmitting data is to encode the data in laser light and send it through optical fibers. A new design method from...
Study Finds Laser Light Can Cast a Shadow Study Finds Laser Light Can Cast a Shadow
OTTAWA, Ontario, Nov. 20, 2024 — Researchers at the University of Ottawa have demonstrated that under certain conditions, a laser beam can act like an opaque object and cast a visible shadow. The finding challenges the traditional understanding of shadows and opens possibilities...
Time Crystals Amplify Light Exponentially for Lasing, Sensing Time Crystals Amplify Light Exponentially for Lasing, Sensing
ESPOO, Finland, Nov. 19, 2024 — The first practical approach to creating photonic time crystals at optical frequencies, developed by an international research team, could lay the groundwork for faster, more compact lasers, sensors, and other optical devices. The team comprising...
Deep Learning Enables High-Resolution 3D Images with Low-Speed Cameras Deep Learning Enables High-Resolution 3D Images with Low-Speed Cameras
NANJING, China, Nov. 18, 2024 — A team at Nanjing University of Science and Technology drew on deep learning techniques to achieve high-resolution, high-speed 3D imaging using conventional, low-speed cameras. The new 3D imaging method shows that slow-scan cameras, which are low in...
Gold-Based Agent Improves OCT’s Ability to Image Cardio Conditions Gold-Based Agent Improves OCT’s Ability to Image Cardio Conditions
OTTAWA, Canada, Nov. 18, 2024 — Intravascular optical coherence tomography (IV-OCT) is used to inform doctors about the shape and structure of hardened artery buildups, torn arteries, and blood clots in the heart. While the method is useful for anatomical imaging, researchers...

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