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Research & Technology News

Hologram Method Boosts Additive Manufacturing
LAUSANNE, Switzerland, Feb. 18, 2025 — While traditional 3D printers work by depositing layers of material, tomographic volumetric additive manufacturing (TVAM) involves shining laser light at a rotating vial of resin until it hardens where accumulated energy exceeds a certain threshold. An advantage of TVAM is that it can produce objects in a matter of seconds, compared to around 10 minutes for layer-based 3D printing. But a disadvantage is that it is very inefficient, because only around 1% of the encoded light reaches the resin
New Target Design Leads to Laser-Plasma Acceleration Discovery
MENLO PARK, Calif., Feb. 18, 2025 — Scientists have developed a groundbreaking method for generating fast, bright proton beams using a high-repetition-rate laser-plasma accelerator. This work resolves several long-standing challenges and ushers this technology to the threshold of...
Nanophotonic Processor with Optical Camera Could Improve AI Efficiency
SEATTLE, Feb. 14, 2025 — Increasing demand for high-performance artificial intelligence (AI) has engendered interest in using photonic, instead of conventional electronic processing for AI computations. Optical computing has the potential to boost AI’s computational...
Robust, Low-Cost Laparoscope Could Improve Surgical Outcomes Worldwide
COLLEGE PARK, Md., Feb. 12, 2025 — Laparoscopic surgery, a minimally invasive surgical technique for the chest and abdomen, significantly reduces post-procedure morbidity compared to open surgery. Despite its advantages, laparoscopic surgery remains largely inaccessible in low- and...
Plastic Optical Fibers Enable Temperature Sensing with High Resolution
YOKOHAMA, Japan, Feb. 11, 2025 — Distributed optical fiber sensors based on Brillouin scattering are widely used to measure strain and temperature changes along optical fibers. However, noise interference, and the physical properties of the sensing fibers, have limited the ability...
Single-Photon (and Long Range) Lidar Provides Eye-Safe, High-Resolution 3D Imaging
EDINBURGH, Scotland, Feb. 10, 2025 — Scientists have developed a detection system that could vastly improve the accuracy of human facial and activity recognition at long distances and through obstructions like fog, smoke or camouflage. The researchers said their sensitive lidar system...
Accurate Magnetic Field Measurement Method Could Advance Quantum Sensing
BOULDER, Colo., Feb. 7, 2025 — Optically pumped magnetometers (OPMs) are used to measure magnetic fields in biosensing, contraband testing, and magnetic communications. They also aid in dark matter searches and serve as promising platforms for quantum-enhanced measurements....
Superradiance Will Enhance Spatial and Temporal Resolution in Superresolution Imaging
HOUSTON, Feb. 6, 2025 — Superradiance, an optical phenomenon that occurs when quantum systems collectively emit light in a coordinated manner, enhances brightness and increases the speed of emission. Although superradiance has been extensively studied in atomic systems, it...
Adding Chirality to Semiconductors Could Improve Light-Based Technology
ITHACA, N.Y., Feb. 4, 2025 — A robust, scalable method to introduce chirality into the band structure of semiconductors could advance photonic technologies that rely on controlling light polarization, like displays, sensors, and optical communications, by giving scientists...
Glass-Coated Bacteria Form Living Microlenses for Advanced Imaging
ROCHESTER, N.Y., Feb. 3, 2025 — Microlenses — μm-sized lenses that capture and focus light into intense beams at a microscopic scale — typically require complex, expensive machinery and extreme temperatures or pressures to produce. A bioinspired approach to making...
EO Frequency Comb Design Broadens Bandwidth and Uses Less Power
LAUSANNE, Switzerland, Jan. 31, 2025 — A novel integrated design for electro-optic (EO) frequency combs expands the bandwidth of the comb and significantly reduces its microwave power requirements, compared to previous designs. The integrated EO frequency comb could benefit robotics,...
Miniature Sensor Detects Spectral Signature via Optoelectronic Interface
ESPOO, Finland, Jan. 30, 2025 — A team at Aalto University combined miniaturized hardware with intelligent algorithms to create a microscopic spectral sensor that can accurately identify a myriad of materials. The work of the researchers could make it possible for industries like...
Germany Establishes First Node for Quantum Internet
AACHEN, Germany, Jan. 28, 2024 — The German state of North Rhine-Westphalia is setting up what is being called “the first node for the quantum internet of the future.” The system was delivered by the Fraunhofer Institute for Laser Technology (Fraunhofer ILT) who...
Quantum Squeezing Boosts Frequency Comb Sensitivity for Rapid Detection
BOULDER, Colo., Jan. 27, 2025 — Optical frequency comb lasers are used to detect toxic airborne substances ranging from methane leaks to the COVID-19 virus. Rapid detection can protect of everyone in the vicinity of the leak from harm. “Say you were in a situation where you...
Polymer Optical Fibers for Optogenetics Reduce Inflammation Risk
KONGENS LYNGBY, Denmark, Jan. 24, 2025 — To deliver light to the brain safely and efficiently, a research team at the Technical University of Denmark designed tapered optical fibers made with soft, biocompatible polymer. The tapered fibers are optimized for light-based neural stimulation...
Magneto-Optics Increases Photonic Processing Efficiency for AI
GOLETA, Calif., Jan. 22, 2025 — A platform for in-memory photonic computing, using magneto-optic material, has the potential to offer efficient, nonvolatile data processing with unlimited read/write capabilities and sub-nanosecond programming speeds. The magneto-optic memory...
New Metal Foams Enable World’s Brightest X-Ray Source
LIVERMORE, Calif., Jan. 21, 2025 — By combining the National Ignition Facility (NIF)’s X-ray laser and ultra-light metal foams, researchers at Lawrence Livermore National Laboratory have produced the brightest X-ray source to date — about twice as bright as previous solid...
Time-Shared Optical Tweezers Simplify Study of Viscoelasticity and Aging
BARCELONA, Jan. 21, 2025 — A technique to study the link between physiological aging and disease, from the Institute of Photonic Sciences (ICFO), uses single-laser-based optical tweezers to measure the viscoelasticity of biological materials as they mature. In biology,...
Bioluminescent Tags Track RNA Dynamics in Live Cells in Real Time
IRVINE, Calif., Jan. 15, 2025 — A bioluminescent tag that can be attached to ribonucleic acid (RNA) will enable scientists to track RNA in real time as it moves through the human body. To understand the central role of RNA in cellular processes, scientists must be able to track...
Graphene Prevents Damage to Flexible Thin Films for Wearable Electronics
SEOUL, South Korea, Jan. 14, 2025 — In a step forward for stretchable, wearable technologies, researchers demonstrated a graphene-enabled laser lift-off (GLLO) technique that ensures smooth separation of thin film, flexible displays during the manufacturing process. The technique...
Electrically-Pumped GaAs-Based Nano-Ridge Lasers Fabricated at Wafer Scale
LEUVEN, Belgium, Jan. 13, 2024 — Research hub imec has demonstrated the monolithic fabrication of electrically-driven GaAs-based multi-quantum-well nano-ridge laser diodes on 300mm silicon wafers in its CMOS pilot prototyping line. Achieving room-temperature continuous-wave lasing...
Photoactivated Gel Achieves Bone Regeneration and Adhesion at Same Time
POHANG, South Korea, Jan. 13, 2025 — Effective treatment of bone defects requires innovative materials that support bone regeneration, are easy to apply, and adapt easily to the defect site. Injectable hydrogels offer a minimally invasive solution, but often lack mechanical integrity...
Metal Glass in Thin Film Structure Improves IR Thermal System
TAIPEI CITY, Taiwan, Jan. 9, 2025 — An advanced design for IR thermal technology, developed by researchers at National Taiwan University (NTU), takes advantage of the tunable optical properties of metallic glass to combine IR camouflage and IR thermal management functions in a single...
Photopyroelectric Tweezers Use Low-Intensity Light to Move Objects
SHENZHEN, China, Jan. 7, 2025 — A new photopyroelectric tweezer device (PPT), developed by a team at the Shenzhen Institutes of Advanced Technology of the Chinese Academy of Sciences, enables remote manipulation of objects made from diverse materials, with various geometries, and...
Wireless Antennas Use Light to Monitor Cellular Communication
CAMBRIDGE, Mass., Jan. 6, 2024 — Monitoring electrical signals in biological systems helps scientists understand how cells communicate, which can aid in the diagnosis and treatment of conditions like arrhythmia and Alzheimer’s. But devices that record electrical signals in...

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