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Optics News
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 to achieve high spatial resolution with these sensors. Researchers at Yokohama National University developed a strategy to enhance the spatial resolution of distributed temperature sensing using polymer optical fibers (POFs). The new approach
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...
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...
SPIE Names 2025 Prism Award Winners
SAN FRANCISCO, Jan. 30, 2025 — SPIE, the international society for optics and photonics, recognized the top innovations in new optics and photonics products at the 2025 Prism Awards held at Photonics West on Jan. 29. The gala event marked the Prism Awards’ 17th anniversary....
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...
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...
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...
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...
SPIE Names 2025 Fellow Class
BELLINGHAM, Wash., Jan. 8, 2025 — SPIE, the international society for optics and photonics, has named 47 fellows of the society, comprising the organization’s class of 2025. Fellows are members of SPIE who have made significant scientific and technical contributions in the...
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...
Advanced OCT System Integral to Eye Transplantation Project
Dec 30, 2024 — An adaptation of optical coherent tomography put into use at Northwestern University, visible OCT (vis-OCT), will be a key component in an ARPA-H funded project that aims to conduct successful eye transplants in the next several years. The...
Tiny Fiber Photoacoustic Spectrometer Enables Fast, Minimally Invasive Analysis
GUANGZHOU, China, Dec. 26, 2024 — A miniaturized, all-in-one optical fiber spectrometer from Jinan University can realize a parts-per-billion (ppb)-level detection limit for trace gas sensing, with no need for a resonant gas cell. The microscale, high-performance, all-in-one fiber...
Hybrid Material Achieves Fast, Stable Phosphorescent Emission for OLEDs
ANN ARBOR, Mich., Dec. 24, 2024 — A hybrid material made from organic chromophores and transition metal dichalcogenides (TMDs) can produce stable, fast, phosphorescent light emission for OLED displays. The new hybrid, developed by a team co-led by the University of Michigan (U-M),...
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...
Miniature Microscopes Could 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...
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...
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...
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...
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...
Xavveo, 4D-Photonic Radar Developer, Closes $8.6M Seed Round
BERLIN, Nov. 7, 2024 — Xavveo, developer of a 4D photonic radar technology, has raised an $8.6 million seed round to support the commercialization of its distributed photonic radar technology. Xavveo’s technology platform has applications in autonomous vehicles, as well...
Laser-Activated Gel Forms Tissue Scaffolds for Medicine and Research
ZURICH, Nov. 5, 2024 — Using a laser and a light-reactive gel, a research team led by Hao Liu at ETH Zurich produced highly aligned microfilament structures for growing connective, nerve, and muscle tissue in a lab. The optically-based approach developed by the team could...
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Jan/Feb 2025
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