Articles tagged with Laser Light
Researchers develop powerful femtosecond light source for mid-infrared spectroscopy, enabling detection of organic molecules at low concentrations. The system uses coherent light to reveal molecular fingerprints and diagnose diseases like cancer at early stages.
A team of researchers has successfully combined carefully structured light with metal nanostructures to alter the properties of generated light at the nanometer scale. This breakthrough could lead to advancements in photonics, such as frequency conversion of light and optical processing.
Researchers at ICFO have achieved the ultimate level of light confinement using graphene, creating ultra-small optical switches and sensors. By sending infra-red light through devices, they observed how plasmons propagated in between metal and graphene, demonstrating control of light guided in channels smaller than one nanometer.
Scientists have developed a new microscope that can capture unprecedented 3-D detail of cells in their natural state, overcoming previous limitations. The technology combines adaptive optics and lattice light sheet microscopy to create high-resolution images of cellular dynamics.
Researchers at ICFO have successfully confined light to a space one atom thick, setting a new record. They used graphene and other 2D materials to create an optical device that can control light in channels smaller than one nanometer.
Researchers have discovered a new material science concept that uses light to expand a two-dimensional nanosheet at incredible speeds. The nanosheet can expand up to 5.7% of its original size in sub-milliseconds, making it potentially useful for artificial muscles and soft robotic systems.
Researchers have developed a method to rapidly transition strongly correlated materials from insulators to conductors using tailored laser pulses. This breakthrough could lead to the creation of next-generation electronics that are faster and more energy efficient.
Researchers detect Bloch-Siegert shift in strongly coupled light and matter, a phenomenon previously speculated but never observed. The discovery could lead to a greater understanding of theoretical predictions in quantum phase transitions and the development of robust quantum bits for advanced computing.
Aalto University researchers have successfully created a new Bose-Einstein condensate that doesn't require cooling to near absolute zero. The condensate is made up of light and electrons in motion in gold nanorods, allowing for faster information processing and potentially enabling the creation of extremely small and fast light sources.
Researchers at Friedrich Schiller University Jena have successfully created tailored surface structures on curved carbon fibers using laser technology, enabling new applications in composite materials and optical devices. The method allows for precise control over the structure's size and shape, opening up possibilities for improving m...
Researchers at NIST have developed a nanoscale coating for solar cells that absorbs up to 20% more sunlight, increasing efficiency and reducing costs.
Scientists have engineered an extremely low loss nanostring that vibrates for minutes with a period of a microsecond, allowing them to 'hear' the sound of photons in a laser beam. The researchers hope to use this technology to detect weak light forces and potentially cool mechanical objects to absolute zero.
Researchers at NIST developed a miniature chip that uses laser light to measure quantities like length with quantum precision. The design packs the atom cloud and structures for guiding light waves into less than 1 square centimeter, achieving a hundredfold increase in measurement precision compared to other devices.
Researchers at NIST created a plasmomechanical oscillator (PMO) that modulates light and amplifies extremely weak mechanical and electrical signals. The device, composed of a gold nanoparticle and a silicon nitride cantilever, can amplify faint signals with amplitudes as small as ten trillionths of a meter.
Researchers have developed a technique to sensitively measure molecule structure by twisting laser light and aiming it at miniscule gold gratings. This method could be used to probe the structure and purity of molecules in pharmaceuticals, agrochemicals, foods, and other important products more easily and cheaply.
Researchers at Hebrew University of Jerusalem have created a terahertz microchip that enables computers to run 100 times faster through optic communications. The new integrated circuit uses flash memory technology and has overcome major challenges of overheating and scalability.
A new field instrument can quantify methane leaks as tiny as one-quarter of a human exhalation from nearly a mile away. The revamped laser technology provides game-changing information for safe industry operations and controlling harmful greenhouse gas emissions.
Researchers at NYU Tandon School of Engineering have made a discovery that can flag the barest presence of viruses or proteins, as well as detect airborne chemical warfare agents. The breakthrough enables biosensors tailored to specific applications, from wearable sensors for soldiers to nanoparticle drug uptake.
The MIT system uses a time-of-flight camera to measure the arrival times of reflected light and estimates a gamma distribution to filter out fog reflections. It calculates a different gamma distribution for each pixel, handling variations in fog density, and produces images of objects at distances up to 57 centimeters.
A particle-based laser was created to measure temperature changes along the length of an optical fiber, offering highly localized light delivery to remote locations. The flying microlaser can detect temperature changes of under 3 degrees Celsius with spatial resolution of a few millimeters.
Researchers at Georgia Institute of Technology have discovered a new class of semiconductors, known as hybrid organic-inorganic perovskites (HOIPs), that can emit light with nuanced colors. The materials are energy-efficient, easy to process and stable at room temperature, making them potentially useful for various applications.
A team of researchers at NIST developed a new laser source, called frequency combs, to detect chemicals with greater sensitivity. These lasers can pass through samples without direct contact, enabling remote spectroscopy and high-sensitivity measurements for applications such as breath analyzers, cancer detection, and explosives tracking.
Researchers at Colorado State University have demonstrated micro-scale nuclear fusion using a compact laser, achieving record-setting efficiency for generating neutrons. This breakthrough could lead to advances in neutron-based imaging and materials science research.
Rochester researchers have developed a technique using the flying focus concept to better control the intensity of lasers over longer distances. By capturing fast-moving movies, they can manipulate the focal velocity and produce high-intensity light sources with novel wavelengths.
Researchers observed attosecond optical-field-enhanced carrier injection into the GaAs conduction band, a process previously thought to be impossible. Intra-band motion plays a significant role in this phenomenon, enhancing the number of electrons excited into the conduction band.
A new technique enables real-time measurement of laser pulses with sub-picosecond resolution, revealing complex collapse and oscillation dynamics before stabilization. This breakthrough has important implications for designing and improving ultrafast pulsed lasers.
The Stanford team has developed an efficient algorithm to process final images from non-line-of-sight imaging, overcoming a significant challenge in capturing 3-D structure of hidden objects. The system can produce images of out-of-view objects in under a second and is computationally efficient enough to run on regular laptops.
JILA scientists invent a novel imaging technique that combines spectroscopy and high-resolution microscopy to create rapid, precise measurements of quantum behavior. The technique produces detailed spatial maps of energy shifts among atoms in a three-dimensional lattice, providing information about each atom's location and energy level.
Researchers created a 3D dynamic model of light-nanoparticle interactions using mining hardware, showing particles lose symmetry and optical properties become heterogeneous when exposed to short intense laser pulses. This finding could enable control of light on a nanoscale for ultrafast information processing devices.
Physicists develop new method to precisely characterise extremely short light pulses, allowing for detailed information about electron place of origin in novel materials. This enables study of superconductors and topological materials, crucial for quantum computing and energy-efficient processors.
Researchers at KIT and EPFL developed a new type of chip-scale light source generating optical frequency combs in silicon nitride microresonators. This enables highly precise distance measurement at speeds of up to 100 million measurements per second, paving the way for real-time 3D cameras and compact LIDAR systems.
Japanese researchers at Osaka University propose that substances heated by high-power lasers produce an ultrahigh pressure plasma state comparable to stellar centers. The surface tension of this plasma can push back light, and the researchers derive a limit density for laser-induced hole boring.
Researchers observe groups of three photons interacting, forming a new kind of photonic matter. The bound photons acquire mass and travel slower than non-interacting photons.
Researchers at the University of Maryland created a photonic chip that generates single photons and steers them around bends in the road. The device mitigates issues by rethinking crystal hole shapes and patterns, ensuring reliable transit for individual photons.
Researchers at Rutgers University have developed a new method for processing nanomaterials that could lead to faster and cheaper manufacturing of flexible thin film devices. The 'intense pulsed light sintering' method uses high-energy light to fuse nanomaterials in seconds, retaining conductivity while reducing temperatures.
The Kodiak system has been officially baselined for NASA's Restore-L project, demonstrating an autonomous satellite-servicing capability. The system will provide real-time images and distance-ranging information to extend a satellite's lifespan.
Researchers at TU Wien have developed a method to measure internal stresses and strains in 2D materials, revealing the effects on electronic properties. This new technique allows for precise imaging of deformations, enabling targeted adjustment of material properties.
Researchers at Caltech developed a new technique to create complex nanoscale metal structures using 3D printing. The process involves synthesizing organic scaffolds that contain metal ions, allowing for the creation of metallic structures smaller than previously possible.
Researchers have developed a non-invasive method for stimulating the brain using nanoparticles that absorb near-infrared light and emit visible photons, allowing for control of specific brain cells. This breakthrough enables the treatment of conditions such as seizures and fear memories with minimal invasiveness.
Scientists have successfully observed radiation reaction in a lab experiment, where an ultra-intense laser slows down electrons. This phenomenon is thought to occur near black holes and quasars, and provides insights into quantum effects beyond classical physics.
Scientists at Tata Institute of Fundamental Research and Rutherford Appleton Laboratory discovered that electrons traveling faster than light in glass live much longer than expected, lasting over 2000 times longer than the exciting laser pulse.
The new design doubles the conversion efficiency of conventional systems, allowing for greater bandwidth and resolution in detecting pollutants and diseases. The technology also enables the miniaturization of such systems onto a chip, leading to new applications for molecular detection and remote sensing.
A team of Columbia engineers, led by Michal Lipson, has developed a groundbreaking AR glass design that enables high-resolution projection and detection with no moving parts. The technology leverages recent work on engineered optical materials (EnMats) and silicon nitride integrated photonics to provide an ultrahigh-resolution see-thro...
Researchers have created a new surface design featuring rigid scales assembled into soft, ferromagnetic micropillars on a flexible substrate. The nanostructured silicon scales enable fluid and light manipulation, with tunable wetting, droplet manipulation, and structural coloration demonstrated.
Researchers at Naval Research Laboratory have discovered a new material that emits light much faster than conventional materials, enabling larger power, lower energy use, and faster switching for communication and sensors. The discovery could lead to 20 times more intense LEDs and lasers.
A team of scientists from the National University of Singapore has developed a way to wirelessly deliver light into deep regions of the body to activate light-sensitive drugs for photodynamic therapy (PDT). The technology enables PDT to be used on inner organs with fine control, potentially treating a wider range of cancers.
Researchers used UV laser photolysis to improve diamond synthesis by suppressing unwanted side products. The technique promotes faster and better-quality diamond growth, opening up new possibilities for material synthesis.
Researchers from TU Delft have found a way to convert the spin information of electrons into a predictable light signal at room temperature, bringing together spintronics and nanophotonics. This discovery could lead to the development of energy-efficient data processing methods.
Scientists from ITMO University developed a silicon-gold nanoparticle that acts as an effective source of white light when agitated by a pulse laser in IR band. This technology makes modern near-field microscopy cheaper and simpler, with potential applications in medicine.
A team at Brigham Young University has developed a method to produce full-color, aerial volumetric images with 10-micron image points using photophoretic optical trapping. The display can be seen from any angle, unlike traditional holographic projections, and is akin to a 3D printer for light.
Researchers used high-speed pulse-chase imaging to study fungal growth, revealing precise timing of vesicle movement and motor protein involvement. The technique provided unprecedented precision, allowing for the discovery of different types of vesicles moving at varying velocities along the hypha.
A new technique allows researchers to switch emission between long- and short-wavelength edges of photonic bandgap by applying a voltage of 20 V. This is achieved through modifying the dipole moment of cholesteric liquid crystals.
Scientists have developed a new method for microscopy that surpasses the Abbe diffraction limit by utilizing chirped laser pulses and quantum dots. This breakthrough enables the imaging of biological samples at resolutions of 1/31 of the wavelength of light, opening up new possibilities for nanoscale analysis.
Researchers from Siberian Federal University and L. V. Kirensky Institute of Physics predicted the structure to control Tamm plasmon wavelength using external fields or heating. They achieved a hybrid Tamm plasmon by incorporating a liquid crystal layer in a multilayer mirror, enabling color change through heating or electrification.
Researchers at Lomonosov Moscow State University developed a new mathematical model that describes the process of soliton occurrence in optical microresonators, taking Raman scattering into account. The system of equations may be used for numerical simulation of effects in optical resonators.
Researchers at OIST Graduate University studied the Marangoni effect, which causes soap to spread on water's surface. They developed a method to quantify the phenomenon through three independent measurements, showing that surfactant dissolution and spreading affect its behavior.
Researchers successfully produced a high-powered, randomly polarized laser beam using a 'Q switch' laser, which typically emits brief pulses of light. This breakthrough expands the potential applications of smaller and more powerful lasers in various fields.
PTB physicists have developed a frequency-doubling unit that can endure transportation and maintain accuracy. The unit is based on a highly stable monolithic enhancement cavity for second harmonic generation, enabling reliable laser light for quantum-optical experiments.
The researchers have developed a new device that uses sound waves to produce ultraminiature optical diodes, enabling nonreciprocal devices for photonic integrated circuits. These devices protect laser sources from back reflections and are necessary for routing light signals around optical networks.
Researchers will test the quantum superposition principle (QSP) in a microscopic system, exploring its validity at larger scales. If successful, this could lead to robust quantum technology for daily applications, enabling faster data processing and transmission.