Research using lasers and light-based technology. Covers electron control, metalens optics, mid-flight drone charging, and water purification.
A new handheld device enables rapid non-invasive detection of harmful chemicals and biological molecules using a Raman spectrometer and cellphone camera. This technology reduces analysis time from days to minutes, making it ideal for remote areas where laboratory spectrometers are impractical.
Scientists at Tsinghua University and TU Wien have created a time crystal made of giant Rydberg atoms, exhibiting spontaneous symmetry breaking and oscillating light absorption. This breakthrough deepens our understanding of the time crystal phenomenon, offering potential applications in sensors.
The NTU team created a compact and flexible light-based sensing device, like a plaster, to provide highly accurate biomarker readings within minutes. The device detects glucose, lactate, and urea levels in sweat with ultra-high sensitivity and dynamic range.
Researchers from the Max Born Institute have developed a method to manipulate magnetism using circularly polarized XUV radiation, generating large magnetization changes without thermal effects. The study demonstrates an effective non-thermal approach to controlling magnetism on ultrafast time scales.
Scientists have successfully embedded a thorium atom within a crystal to raise its energy state using lasers, allowing for precise measurements of time, gravity, and other fields. This breakthrough could unlock the secrets of fundamental constants of nature and test if they vary.
A new photodynamic therapy method has been shown to effectively eradicate ocular melanoma in mice, with the technique delivering two photons and minimizing damage to healthy tissue. The approach offers a promising alternative to current treatments that are often ineffective or invasive.
Researchers at Stanford University have developed a chip-scale Titanium-sapphire laser, four orders of magnitude smaller and three orders less expensive than traditional lasers. This breakthrough enables mass production on wafers, potentially thousands of lasers per disc, democratizing access to these powerful tools.
A new study highlights the potential of ultrafast laser processing in manipulating 2D materials, enabling precise control over material properties at the nanoscale. This technology has the potential to drive new advancements in photonic, electronic, and sensor applications.
Scientists have discovered that specific light wavelengths can induce non-equilibrium transitions in magnetite, a well-studied material. This breakthrough enables the control of electronic properties at ultrafast timescales, opening up new avenues for advanced materials and device development.
Researchers have developed a new 3D method for fast-moving object tracking at unprecedented speeds, with potential applications in autonomous driving, industrial inspection and security surveillance. The approach uses single-pixel imaging to calculate the object's position in real-time, reducing data storage and computational costs.
Scientists at the University of Bath discovered a new nonlinear optical property that measures the twist in tiny particles, similar to viruses and bacteria. This finding enables real-time particle size analysis and has significant implications for various fields like display technology, chemical catalysis, and medicine.
Researchers developed a chip-scale erbium-doped waveguide laser that approaches fiber-based laser performance, featuring wide wavelength tunability and stable output. The breakthrough enables low-cost, portable systems for various applications including telecommunications, medical diagnostics, and consumer electronics.
Sean McWilliams' team will study stellar-mass and massive binary inspirals, improving modeling accuracy for the Laser Interferometer Space Antenna (LISA). The project aims to enhance the instrument's science mission by making necessary dramatic improvements in modeling accuracy.
Researchers developed a novel compound with nonlinear photochromic properties, achieving enhanced contrast and spatial resolution. The compound exhibits improved coloration efficiency with higher-intensity light, enabling diverse applications in photolithography, 3D printing, and optical disks.
Researchers created a topological quantum simulator device that operates at room temperature, allowing for the study of fundamental nature of matter and light. The device has the potential to support the development of more efficient lasers.
Researchers develop a new method to grow single-crystal perovskite hydrides, allowing for accurate measurement of intrinsic H- conductivity. The technique enables the production of high-quality crystals with minimal imperfections, paving the way for sustainable energy technologies and hydrogen storage applications.
Researchers at the University of Gothenburg studied how bubbles form in a drop of biodiesel using femtosecond lasers. The findings aim to improve engine efficiency, reduce emissions, and increase fuel combustion. Understanding bubble formation is crucial for developing more efficient biofuel motors.
Researchers have developed new optical tweezers that can stably trap large and irregularly shaped particles using contour-tracking technology. This advancement could expand light-based trapping to a wider range of objects, including groups of cells, bacteria, and microplastics.
Scientists have discovered a new way to transform an insulating material into a semimetal by exposing it to ultrafast laser pulses. This process alters the energy states and electron movement, temporarily creating a semimetallic state that can be used in devices with dynamic properties.
Researchers demonstrate novel method of boson sampling using ultracold atoms in a two-dimensional optical lattice, overcoming previous limitations in simulations and photon-based experiments. The achievement showcases the potential of quantum devices for performing non-classical computational tasks.
A new sensor developed at the University of Copenhagen and Hvidovre Hospital can detect errors in MRI scans using laser light and gas, paving the way for better, cheaper, and faster scans. The sensor works by measuring changes in the magnetic field, allowing for corrections to be made and images to be made accurate.
Researchers develop laser microscopy technique to analyze pigments in artwork, detecting chemical changes that mark the onset of decay. The technique uses ultra-fast pulses of light to create 3D maps of certain pigments, allowing for nondestructive analysis and early detection of fading.
Physicists have achieved a breakthrough by exciting thorium atomic nuclei with lasers for the first time, enabling precise tracking of their return to original energy states. This discovery has far-reaching implications for precision measurement techniques, including nuclear clocks and fundamental questions in physics.
Researchers have developed a compact and lightweight single-photon airborne lidar system that can acquire high-resolution 3D images with a low-power laser. The system uses single-photon detection techniques to measure time-of-flight, enabling highly accurate 3D mapping of terrain and objects even in challenging environments.
Researchers at Penn State have made light effectively experience a magnetic field within a photonic crystal structure. This breakthrough could lead to more efficient lasers and other photonic technologies by increasing the interaction between light and matter.
A new laser-based approach using Raman spectroscopy can quickly and non-destructively identify elephant ivory from legal mammoth tusk. The technology has been shown to provide accurate species identification, offering a valuable tool for customs enforcement and combating the illegal ivory trade.
Researchers from the University of Copenhagen have developed a new method for measuring time using superradiant atoms, which could improve precision in areas like GPS systems and space travel. The technique uses superradiance to read out atomic oscillations without heating up the atoms.
The novel UV broadband spectrometer enables real-time analysis of air pollutants and their interaction with other gases and sunlight. It combines high spectral resolution, short measurement times, and large bandwidth, making it suitable for sensitive measurements and monitoring of gas concentrations.
A team of scientists has achieved a breakthrough in measuring the 3D density profile of laser wakefield accelerated electron bunches, revealing a transverse size of less than 30 micrometers and a peak current exceeding 1 kiloampere. This detection opens new avenues for future applications in accelerator science and beyond.
Researchers developed a compact swept-source Raman spectroscopy system for identifying both chemical and biological materials. The portable system addresses limitations of bulky dispersive Raman spectrometers, providing accurate results comparable to conventional systems.
A new approach uses a smartphone screen to create full-color 3D holographic images by leveraging computer-generated holography (CGH) and an optical component called a spatial light modulator. The method has the potential to enhance near-eye displays in virtual reality headsets, creating more realistic and interactive user experiences.
Researchers have developed a technique to focus ultra-intense ultrashort lasers onto a single wavelength using rotational hyperbolic mirrors. This breakthrough enables the highest intensity condition for ultra-intense ultrashort lasers, revolutionizing strong-field laser physics applications.
A team of researchers from the Chinese Academy of Sciences has successfully developed a high-power, narrow-linewidth solid-state deep ultraviolet laser at 193 nm using LBO crystals. The generated DUV laser exhibits an average power of 60 mW and a linewidth of approximately 640 MHz, setting new benchmarks in efficiency values.
Researchers have developed a visible-light mode-locked femtosecond fiber oscillator and amplifier, emitting red light at 635 nm. The device achieves a pulse duration of 199 fs and an average output power over 1 W.
Scientists at Tohoku University create a tiny spot in glass using a tailored laser beam, enabling precise processing at scales below 100 nanometers. The breakthrough opens up new possibilities for laser nano-processing in various industries and scientific fields.
Researchers at Chalmers University of Technology developed a computational model to measure entropy production on the nanoscale in laser-excited crystalline materials. The model reveals that phonons, lattice vibrations, can produce entropy similar to bacteria in water.
Researchers aim to create a nuclear clock using thorium isotopes, which could increase measurement accuracy by a factor of 3. The project uses light with orbital angular momentum to excite the nucleus, emitting photons that can be detected. This technology has the potential to answer fundamental questions in physics and astronomy.
Researchers developed a unique microfluidics-based diagnostic system that combines optical tweezers with stimulated Raman spectroscopy to enable fast and accurate diagnosis of leukemia. The device can identify cancer cells based on their metabolic activities and metabolites, providing tailored treatment options.
Scientists have developed a new method to manipulate light using synthetic dimension dynamics, enabling precise control over light propagation and confinement. This breakthrough has significant implications for applications such as mode lasing, quantum optics, and data transmission.
Researchers at the Max Planck Institute of Quantum Optics have successfully developed a new technique for deciphering the properties of light and matter, enabling precise spectroscopy under low-light conditions. This breakthrough opens up possibilities for novel applications in photon-level diagnostics, precision spectroscopy, and biom...
A new study found that low-level laser therapy (PBM) provides immediate pain relief for Burning Mouth Syndrome (BMS) patients, with a significant drop in pain scores after each treatment. The study also observed a cumulative effect of PBM on alleviating BMS symptoms, especially up to the third treatment.
Scientists from TIFRH successfully generate MeV temperature electrons at a fraction of the previously thought necessary laser intensity. The technique uses two laser pulses to create tiny explosions in microdroplets and accelerate electrons to megaelectronvolt energies.
Researchers at Max Born Institute have successfully implemented high-resolution linear-absorption dual-comb spectroscopy in the ultraviolet spectral range. This breakthrough enables experiments under low-light conditions, paving the way for novel applications in precision spectroscopy and biomedical sensing.
A new type of frequency comb, called a microcomb, is developed by Stanford researchers that can be used to measure light with unprecedented precision. The device is innovatively small, ultra-energy efficient, and exceptionally accurate, making it suitable for widespread adoption in everyday electronics.
Researchers at the University of Bonn and Bristol have developed a new method to measure the 3D position of individual atoms using a single image. The technique utilizes an ingenious physical principle to determine the vertical position of the atom, allowing for precise control and tracking in quantum mechanics experiments.
Researchers have developed a new way to control and manipulate optical signals by embedding a liquid crystal layer into waveguides created with direct laser writing. The new devices enable electro-optical control of polarization, which could open new possibilities for chip-based devices and complex photonic circuits.
Researchers developed an all-light communication network that combines different types of light sources to ensure connectivity in various environments. The network enables real-time data transmission between nodes, facilitating applications such as video conferencing, sensor data exchange, and Internet of Things services.
Researchers have successfully generated a stable high-intensity and high-repetition supercontinuum white light source in air using femtosecond laser filamentation with an external DC electric field. This method suppresses thermal jitter by generating an ionic wind, improving beam pointing stability and signal-to-noise ratio.
Researchers at Aston University have discovered that aging skin exhibits distinct optical properties under polarised laser light. This finding could lead to the development of non-invasive light-based techniques for early detection and monitoring of skin conditions, including cancer.
Researchers developed a compact microscope using a single photon avalanche diode array detector, enabling super-resolution imaging with improved signal-to-noise ratio and spatial resolution. The system also combines fluorescence lifetime measurements for enhanced structural specificity.
Scientists have created a low-cost imaging device suitable for endoscopic screening programs, offering excellent contrast between healthy and malignant tissue. The new system uses ultraminiature spatial frequency domain imaging technology to detect cancerous lesions with high specificity and sensitivity.
A team of researchers from the universities of Mainz, Olomouc, and Tokyo has successfully generated a logical qubit from a single light pulse that can correct errors. This breakthrough uses a photon-based approach to overcome the limitations of current quantum computing technology.
Using optical traps, researchers controlled bacterial aggregation and biofilm development, finding different types of lasers can stimulate or suppress growth. The study opens up possibilities for creating microscopic building materials from bacteria.
A University of Houston optometry researcher has warned against using low-level red light therapy for myopia in children due to potential retinal damage. The therapy, which involves prolonged exposure to a red light-emitting instrument, can put the retina at risk of photochemical and thermal damage.
Researchers have developed a new III-V semiconductor nanocavity that confines light at levels below the diffraction limit, enabling fast data transmission and reduced energy consumption. The achievement demonstrates deep sub-wavelength confinement of light in a topology-optimized InP nanocavity.
Researchers have developed a new approach to monitor ultrafast charge motion in strongly correlated solids, demonstrating phase transitions within femtoseconds. The technique offers sub-cycle temporal resolution and opens up new avenues for investigating ultrafast phenomena in correlated materials.
Researchers at Rice University have developed a new experimental technique that preserves quantum coherence in ultracold molecules for a significantly longer time. By using a specific wavelength of light, the 'magic trap' delays the onset of decoherence, allowing scientists to study fundamental questions about interacting quantum matter.
Researchers at UC Davis have found that ultrafast laser pulses can significantly reduce the energy needs of data storage. The pulses accelerate magnetic domains, allowing for faster and more stable memory storage. This technology has the potential to revolutionize spintronic devices such as hard disk drives.
Researchers have found that ultraviolet laser light can degrade coronavirus particles by damaging their genetic material and protein spikes. The study reveals the effectiveness of UVC laser radiation in inactivating SARS-CoV-2, with applications for public disinfection and decontamination.
Researchers propose an indirect optical method for determining internal temperatures of opaque packed beds based on phosphor thermometry. Ray tracing simulations enable simultaneous multi-point measurements, allowing for accurate full temperature distribution within the bed.