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Study Offers Tools to Optimize Low-Light Cameras for Bioimaging
ADELAIDE, Australia, March 20, 2025 — Illumination is often reduced when imaging biological samples. Low-light imaging helps researchers avoid adverse effects, like photobleaching and phototoxicity, that could damage the sample. However, use of low light can affect image quality. The challenge when minimizing illumination is to maintain image quality that is high enough to reflect the underlying biology of the sample and be used for quantitative measurements. Researchers at the University of Adelaide investigated optical
Ultrafast Microscope Images Material’s Molecular Structure and Dynamics
BOULDER, Colo., March 20, 2025 — Perovskites, a family of organic-inorganic hybrid materials, are efficient at converting light to electricity and relatively easy to make. They absorb certain colors of the visible spectrum effectively and can be layered with other materials, such...
Photon-Avalanching Particles Could Enable Next-Gen Optical Computers
BERKELEY, Calif., March 19, 2025 — Intrinsic optical bistability (IOB), an optical phenomenon that enables a material to use light to switch between two different states, could be the key to making smaller, faster components for next-generation computers. Researchers at Lawrence...
Control of Nanodot Emission Could Advance Quantum and Display Technologies
UNIVERSITY PARK, Pa., March 18, 2025 — An international team led by Pennsylvania State University (Penn State) and Université Paris-Saclay achieved localized light emission from 2D monolayer molybdenum diselenide (MoSe2) nanodots embedded in a monolayer tungsten diselenide WSe2...
Plasmonic Modulator Transmits Data in Terahertz Range
ZURICH, March 18, 2025 — A research group from ETH Zurich led by Jürg Leuthold, professor of photonics and communications, have succeeded in transmitting data with a frequency of over a terahertz via a plasmonic modulator. This is five to ten-fold of what previous...
THz Spintronics Could Enable Ultrafast Readout of Magnetic Drives
DRESDEN, Germany, March 18, 2025 — The data storage capacity of multi-terabyte hard drives is several million megabytes, but their data transfer rates are only a few hundred megabytes per second, due to their reliance on tiny magnetic structures. The development of memory devices...
Ultra-Broadband Photonic Chip Boosts Optical Signals
LAUSANNE, France, May 14, 2025 — Modern communication networks rely on optical signals to transfer vast amounts of data. But just like a weak radio signal, these optical signals need to be amplified to travel long distances without losing information. The most common amplifiers,...
AI-Enabled Cytometer Brings Low-Cost Cell Analysis to Point-of-Care
HOUSTON, March 12, 2025 — An artificial intelligence (AI)-enabled, low-cost microfluidic cytometry device for rapid cell analysis could make flow cytometry more affordable and accessible for low-resource and remote settings. Developed by a team at Rice University, the device...
Metasurface Tech Enables Multiphoton Entanglement
BEIJING, March 11, 2025 — Quantum information processing relies on the entanglement of multiple photons to process vast amounts of information. However, creating multiphoton entanglement is a challenging task. Traditional methods either use quantum nonlinear optical...
Model Predicts How Hybrid Light-Matter State Increases OLED Efficiency
TURKU, Finland, March 11, 2025 — Lightweight, flexible, and eco-friendly, OLEDs are reshaping the lighting industry with innovative illumination solutions and high-definition displays. However, they continue to be slow at converting electric current into light. Only 25% of the...
Flat Lens with Achromatic Focus Captures Detailed Images of Sun and Moon
SALT LAKE CITY, March 10, 2025 — A multilevel diffractive lens from the University of Utah could serve as a lightweight alternative to conventional refractive systems for long-range imaging. The large-aperture, flat lens focuses light as effectively as traditional, curved lenses...
Microscopy Method Doubles the Depth Limit for Live Tissue Imaging
CAMBRIDGE, Mass., March 7, 2025 — Label-free imaging using two-photon autofluorescence of reduced form nicotinamide adenine dinucleotide phosphate, or NAD(P)H, provides nondestructive, high-resolution, 3D visualization of cellular activities in living systems. Due to light...
Metasurface Optic Can Keep an Eye on Atmospheric Aerosols
CAMBRIDGE, Mass., March 6, 2025 — Aerosols can affect everything from severe weather to air quality. Polarimeters, which characterize aerosols and cloud particles by observing how they interact with light, are among the best tools scientists have to help develop their understanding...
Fluorescence Microscopy Resolution Increased by Factor of 30
MUNICH, March 3, 2025 — Superresolution microscopes, like the Nobel Prize-winning STED and PALM/STORM microscopes, provide resolutions of a fraction of the wavelength of light. But in order to image adjacent fluorescent molecules separately, they must be sequentially...
Terahertz Wave Generator Delivers High Radiating Power on a Chip
CAMBRIDGE, Mass., Feb. 27, 2025 — A chip-based source for terahertz power could improve the efficiency of electronic devices and chip-based applications. But generating terahertz waves on a semiconductor chip is difficult. To meet this challenge, a team at MIT created a chip-based,...
Light Activation Tool Could Help Ensure Targeted Drug Delivery
GENEVA, Switzerland, Feb. 26, 2025 — Light can be a powerful tool for manipulating molecular events. It is noninvasive, relatively straightforward to use, and can provide excellent spatial and temporal control. A light activation tool has been developed at the University of Geneva that...
Ultrafast Spectroscopy Captures Acoustic Vibration of Single Virus
EAST LANSING, Mich., Feb. 25, 2025 — Using ultrafast spectroscopy, researchers at Michigan State University tracked the vibrational motions of single, unlabeled virus particles under ambient conditions, across the megahertz (MHz) to terahertz (THz) spectral range. The team’s...
High-Quality Semiconductor Enhances SWIR Sensor Performance
DAEJEON, South Korea, Feb. 24, 2025 — Short-wave infrared (SWIR) sensors deliver clear visual information even in low-light conditions, and can detect infrared (IR) light that is both reflected and directly emitted by objects. IR sensors use semiconductors to detect light signals and...
Single Photon Detector Proves Capable of High-Energy Particle Detection
LEMONT, Ill., Feb. 20, 2025 — Superconducting nanowire single photon detectors (SNSPDs) have the potential to function as highly accurate particle detectors, according to a study conducted at the U.S. Department of Energy (DOE)’s Argonne National Laboratory. The findings...
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....
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...

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