Articles tagged with Laser Pulses
Researchers at the Max Born Institute have developed a method to record high-resolution movies of molecular dynamics using electrons ejected from a molecule by an intense laser field. This technique allows for the observation of ultrafast nuclear rearrangement with both high temporal and spatial resolution.
A new material has been found to enable ultra-fast toggle switching, which could increase the capacity of fibre optic cable networks by an order of magnitude. This breakthrough overcomes three major obstacles to further progress with the internet: speed, energy consumption, and network capacity.
Researchers demonstrated new methods for controlling spin waves in nanostructured materials, enabling energy-efficient information transfer and quantum computing applications. They achieved this by exciting magnons with short laser pulses, allowing precise control over spin wave parameters.
University of Rochester researchers have created a new device that enhances ultrafast laser pulses, producing the shortest pulse ever from a gain-free fiber source. The technology has significant implications for various engineering and biomedical applications, including spectroscopy and frequency synthesis.
Researchers at University of Göttingen use femtochemistry to film and control chemical reactions on solid surfaces. They successfully transfer principle from molecules to a solid, controlling its crystal structure with high efficiency.
Researchers at Kiel University have observed rapid electronic changes in tungsten ditelluride using laser pulses, which could enable ultra-fast optoelectronic switches. The team used time-resolved photoelectron spectroscopy to visualize the changes in the material's electronic structure, revealing new insights into its unusual properties.
Researchers have developed a new high-energy hollow fiber compressor beamline to generate intense attosecond harmonic radiation for nonlinear XUV spectroscopy studies. The system achieves 1.5-optical-cycle-long laser pulses with 1.2 terawatt peak power at kilohertz repetition rate, breaking a 10-year-old record.
Scientists have developed a new scheme to generate near-single-cycle mid-infrared pulses in plasmas, achieving conversion efficiencies of up to 30%. The method uses two terawatt-level short-pulse lasers incident into an underdense plasma channel, producing a tunable mid-infrared pulse with millijoules of energy.
Researchers proposed a new scheme to generate near-single-cycle mid-infrared light pulses with a few millijoules in energy, achieving a high conversion efficiency of 30%. The method utilizes two terawatt-level short-pulse lasers and an underdense plasma channel.
Scientists have discovered a new microscopic process called optical intersite spin transport (OISTR) that allows light to trigger a displacement of electrons between atoms, influencing the local magnetization. This process is accompanied by a leveling of electron reservoirs and can be tailored by bringing together specific types of atoms.
By combining pump-probe measurements with theoretical simulations, researchers can now observe the energy flow in acetone at a key energy window between closely related states. This synergy of experimental and theoretical methods provides new insights into light-matter interactions and molecular dynamics.
A team from TU Wien, MPI Garching, and LMU Munich has developed a new method to measure the shape of light pulses using tiny silicon oxide crystals. This allows for precise information about the interaction of light and matter, enabling applications such as characterizing novel materials and detecting diseases.
Physicists have developed a novel detector that precisely determines the oscillation profile of light waves, enabling research on dynamic processes at molecular levels. The new technique allows for real-time investigation of molecule responses to intense light fields.
Scientists have developed a new method to record extremely fast processes using X-ray lasers. By harnessing the random nature of these pulses, they can now create images with precisely controlled parameters. This breakthrough enables the study of non-linear effects and chemical reactions.
Scientists at ICFO have created a new microscopy technique that allows them to study the dynamics of individual quantum dots without degrading the samples or relying on fluorescent labels. By using laser pulses to promote QDs into excited states, they can image and track the evolution of charged particles within the nanoscale.
Scientists have doubled the highest electron energy ever produced by a laser plasma accelerator, reaching 7.8 billion electron volts (GeV) in an 8-inch-long plasma. This breakthrough is crucial for building next-generation particle colliders that accelerate electrons to extreme energies.
Researchers from the University of Bayreuth and Göttingen have discovered a way to control ultrashort laser pulses, enabling precise material analyses and medical procedures. The new technique involves manipulating soliton pairs in laser pulses, allowing for efficient adjustment of pulse intervals.
Researchers at TU Wien have developed a new measurement protocol that enables direct measurement of the quantum phase of electrons. This breakthrough could lead to better understanding of important phenomena in photosensors and photovoltaics.
Researchers at DESY used precisely tuned laser light to capture the ultrafast rotation of carbonyl sulphide molecules, revealing the intricate dance of quantum mechanics. The resulting 'molecular movie' provides new insights into molecular dynamics and has potential applications for studying other molecules and processes.
Researchers at UC San Diego are creating the world's first high-intensity twisted laser beams, also known as corkscrew light pulses. This achievement has potential applications in nuclear physics, astrophysics, and non-invasive tumor therapies.
Skoltech researchers developed a new method to generate intense monoenergetic X and gamma-ray radiation using Nonlinear Compton Scattering. The invention uses carefully tuned laser pulses to remove parasitic broadening, significantly increasing the number of generated photons.
Researchers at Friedrich Schiller University Jena have successfully created plasma using nanowires and long-wavelength ultrashort pulse lasers. The new method achieves higher temperatures than previously thought possible in a laboratory setting, opening up new avenues for studying plasma and its properties.
Researchers at City University of Hong Kong have developed a novel compressed ultrafast photographic technique enabling both high frame rate and large frame number. This new technique offers an important tool for observing complex transient processes on the femtosecond timescale.
Scientists at CU Boulder discovered that zapped magnets exhibit fluid-like behavior, with spins changing orientation like waves in an ocean. This phenomenon occurs after a short laser pulse, leading to the formation of 'droplets' with consistent magnetic properties.
Researchers employed high-speed lasers to study the mechanisms of H3+ creation and its unusual chemistry. They discovered six potential pathways for H3+ formation and found that certain laser pulses enhance or discourage formation.
Researchers at DESY achieved a world record in plasma acceleration using a laser drill, accelerating electrons to an energy of 7.8 billion electron volts. The technique uses a laser pulse to drill through a plasma, confining the beam and enabling the acceleration of particles hundreds of times stronger than conventional accelerators.
Researchers achieved nearly double the previous record of 4.25 GeV by accelerating electrons to 7.8 GeV using a novel technique that combines laser heating and plasma channeling. The breakthrough enables more compact and affordable particle acceleration for high-energy machines.
Researchers at LMU Munich develop a novel enhancement resonator to generate ultrafast laser pulses, enabling the characterization of multidimensional electron motions in weeks instead of months. The technique opens new opportunities for investigating local electric fields in nanostructures.
Physicists at UC Riverside created the first production of an electron liquid at room temperature, opening the way for new optoelectronic devices and basic physics studies. The achievement could lead to development of efficient terahertz devices for applications such as cancer detection and space communications.
Using laser pulses and supercomputing simulations, researchers observed electrons' movements in real-time. This breakthrough study verifies theoretical predictions and provides new insights into atomic-scale processes governing chemical reactions.
The latest version of Hussar software simulates the interaction of ultra-short laser pulses with unprecedented accuracy and speed. It allows researchers to model non-collinear beam intersections, enabling the design of innovative optical experiments and devices.
Researchers controlled electron flow in graphene using light waves, enabling faster data transmission. They used two-dimensional materials to achieve this feat, opening doors for new transistor technologies.
Researchers have developed the world's fastest camera capable of capturing 10 trillion frames per second. This innovation enables real-time imaging of dynamic phenomena in biology and physics, allowing for unprecedented insights into light-matter interactions.
Researchers at IBS have developed a new method to generate extreme-ultraviolet emissions, opening doors for high-resolution imaging, ultrafast spectroscopy, and next-generation lithography. By controlling electron motion using laser pulses, they created coherent radiation with specific wavelengths.
Researchers at Vienna University of Technology have successfully measured the duration of the photoelectric effect, a crucial process in quantum physics. The results reveal that different quantum jumps take varying amounts of time, ranging from 100 to 45 attoseconds for electrons from tungsten atoms.
A team of researchers has investigated heat transport in a model system comprising nanometre-thin metallic and magnetic layers. The results showed that the heat is distributed much slower than expected, taking hundreds of times longer to reach thermal equilibrium.
A new study investigates the extremely rapid changes in electron density in specific sites of the caffeine molecule using ultra-fast laser pulses. The results show that positive charge migration along a molecular backbone depends on the timing and interplay of ionisation channels.
A team of physicists has measured a tiny time difference in the ejection of an electron from a molecule depending on its position. The researchers used attosecond laser pulses to study the photoelectric effect in carbon monoxide molecules, achieving precise measurements of the Wigner time delay and electron localization.
Scientists at Osaka University have discovered a novel particle acceleration mechanism using micro-bubble implosion, emitting high-energy protons at unprecedented levels. This breakthrough could clarify unknown space physics and lead to new applications in medical treatment and industry.
A team of researchers at the Institute for Basic Science developed a new method to measure laser pulse shapes in ambient air. The patented technique, TIPTOE, uses tunnel ionization and achieves temporal characterization of laser pulses without X-ray pulses or vacuum conditions.
Researchers at FAU successfully generated controlled electron pulses in the attosecond range using optical travelling waves formed by laser pulses. This breakthrough enables ultrafast movements to be tracked, such as vibrations in atomic lattices and molecular bonds in chemical reactions.
Scientists have successfully created a fast, tunable, and stable nanoparticle-array laser, enabling ultrafast lasing dynamics with short and rapidly appearing laser pulses. The study showcases promising potential for all-optical switching and sensing applications.
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 have developed a 'Swiss army knife' for electron beams, combining acceleration, compression, focusing and analysis in a single device. The Segmented Terahertz Electron Accelerator and Manipulator (STEAM) uses precise timing control to perform these functions with ultra-high precision.
Researchers at Lomonosov Moscow State University and international colleagues determine ultrashort X-ray laser pulse energy and time characteristics using the angular streaking method. This allows for individual pulse measurement with high temporal resolution, opening up new avenues for studying ultra-fast molecular processes.
Researchers at the University of Bonn used ultrashort laser pulses to create a highly reactive variant of carbon dioxide, which can form new bonds with other molecules. This breakthrough has the potential to change ideas about extracting and using greenhouse gases for chemical industry.
Researchers at Tohoku University have developed a computational simulation that shows the potential of ultrafast laser pulses to switch electrons' spins in magnetic materials, enabling faster magnetic memory devices. The study suggests perovskite manganites and layered manganites as possible materials for testing their model.
Researchers investigate electronic charges that form stripe patterns in lanthanum nickelate, discovering unexpected dynamics when using terahertz laser pulses to disrupt microscopic order. The study provides fundamental insights into the interactions between electrons and crystal lattice vibrations.
The study confirms years of theoretical work and shows attophysics is ready to tackle complex molecules. Researchers used extremely short laser pulses and sensitive detection to distinguish between electrons with minimal speed difference.
Researchers at ETH Zurich generate the world's shortest controlled laser pulse with a duration of 43 attoseconds, allowing for unprecedented time resolution in studying molecular dynamics. This breakthrough enables faster charge transfer and potentially more efficient solar cells.
Researchers at TIFR devise compact terahertz radiation source using laboratory liquids, achieving energies thousands of times larger than existing sources. The discovery opens doors to applications in terahertz imaging, material analysis, and explosives detection.
A team of scientists has found that applying a brief laser pulse to the C60 bucky-ball material creates superconducting properties up to 100 degrees above the critical temperature. The discovery sheds light on the unusual physical phenomena and offers potential for manufacturing electronic devices with adjustable properties.
Researchers used advanced synchrotron measurement setup to study spin dynamics of ferrimagnetic thin films containing different proportions of gadolinium. They found that varying composition dramatically changed response to laser pulse, leading to improved switching speeds and precision.
Researchers developed laser-driven plasma acceleration using low-energy, ultrashort mid-infrared laser pulses, producing relativistic electron beams. The team's findings demonstrate the potential of long-wavelength femtosecond lasers for compact and high-repetition-rate accelerators.
Researchers in Erlangen and Jena have achieved high-precision measurement of the wave characteristics of focused, ultra-short light pulses. This will enable targeted influence on electrons and chemical reactions.
The new camera can record fast processes in transparent specimens and increase image resolution. It captures phase deformations of ultrashort laser pulses, allowing researchers to study biochemical reactions and cellular mechanisms with high accuracy.
Scientists used the world's most powerful X-ray laser to create a 'molecular black hole' that pulled in surrounding electrons, stripping away more than 50 electrons from a single atom. The results provide fundamental insights into how to better plan and interpret experiments using intense X-rays.
The University of Strathclyde researchers have developed a highly efficient laser amplifier using plasma, achieving an amplification gain of over eight orders of magnitude. This breakthrough could lead to the development of ultra-intense and ultra-short laser pulses at a lower cost.
Researchers discovered a class of materials that can exhibit superconductivity at room temperature due to innovative laser techniques. This breakthrough opens up new perspectives for the development of high-temperature superconductors with applications in electronics, diagnostics, and transport.
Osaka University researchers used sharp, ultra-short laser pulses to generate charged particles, achieving beams with higher energy and more precise control. The study challenged conventional models, finding that lower-intensity laser light can produce high-energy charged particles.