Articles tagged with Attosecond Pulses
Researchers at TU Wien and University of California San Diego have discovered a new quantum regime of coherent X-ray generation with higher energies, breaking the conventional energy cutoff limit. The effect is attributed to the interaction between two electrons in helium atoms, which release their energy simultaneously.
Scientists have developed a table-top technique using all-attosecond transient absorption spectroscopy to study the oscillatory motion of an electron vacancy in xenon ions. The results provide insights into the underlying dynamics of light-induced processes.
The study measures ultrafast electron dynamics in hydrogen molecules, observing oscillations in hole localization that depend on the delay between attosecond pulses. Entanglement occurs at the expense of electronic coherence in the remaining ion.
Researchers at the Paul Scherrer Institute have successfully implemented mode-locking to generate coherent trains of X-ray pulses with unprecedented temporal structure. This achievement enables attosecond science and opens up new experimental possibilities, including precise timing of phenomena in gases, liquids, and solids.
Researchers at Lund University have developed a compact and elegant way to stretch ultrafast laser pulses using a diffraction grating, allowing for precise control over pulse duration. This enables full characterization in a single shot, without the need for pre-compensation optical elements.
Researchers have generated a 19.2-attosecond soft X-ray pulse, creating a camera capable of capturing elusive electron dynamics in unprecedented detail. This breakthrough enables direct observation of processes driving photovoltaics, catalysis, and emerging quantum devices.
Researchers propose a novel scheme to produce isolated attosecond pulses using relativistic electron mirrors. This approach can compress an incoming femtosecond laser pulse into an ultra-intense extreme ultraviolet (XUV) attosecond burst, opening doors to groundbreaking applications in ultrafast science and high-resolution imaging.
Scientists at Max Born Institute and DESY develop a plasma lens that focuses attosecond pulses, improving the study of ultrafast electron dynamics. The technique offers high transmission rates and allows for focusing light across different colors.
Using extreme ultraviolet high-harmonic interferometry, researchers tracked changes in the electronic bandgap of silica glass and magnesium oxide under strong laser excitation. The study found a shrinking bandgap in silica and a widening bandgap in magnesium oxide.
Researchers developed a novel scheme to generate high-intensity, isolated attosecond soft X-ray FELs using mid-infrared laser pulses and gas-filled hollow capillary fibers. This method produces ultra-short pulses with high signal-to-noise ratio, enabling scientific applications such as probing valence electron motion.
Researchers at Weizmann Institute create innovative method to track rapid material changes using two laser beams, enabling precise reconstruction of optical delay changes. This advance could lead to the development of fastest processors possible, increasing data transmission speed.
Researchers at Tata Institute of Fundamental Research have developed a novel method to steer relativistic electron pulses produced by femtosecond lasers. By using solid targets with nanopillars, they achieved coherent control over the electrons' directionality and formed narrow beams.
A research team at National University of Defense Technology has successfully generated an isolated attosecond XUV pulsed source with a pulse duration of 51±4 attoseconds. This achievement paves the way for further exploration of ultrafast electron dynamics using high-flux ultrashort attosecond pulses.
Researchers at European XFEL and DESY develop self-chirping method to produce high-power attosecond hard X-ray pulses without reducing electron bunch charge. This enables non-destructive measurements at the atomic level and opens new avenues for studying matter at the atomic scale.
Researchers at ETH Zurich have set a new record for the strongest laser pulses, surpassing previous records by over 50%, using a special arrangement of mirrors and a semiconductor mirror. The pulses can be used to create high harmonic frequencies up to X-rays, enabling fast processes in the attosecond range.
Researchers at TU Wien have developed a new method to generate extremely short, powerful ion pulses for controlled analysis of material surfaces. These pulses can be used to observe chemical processes in real-time, providing insights into surface physics and chemistry on a picosecond time scale.
Scientists have developed a powerful tool to investigate molecular dynamics in real-time, tracing the evolution of gas-phase furan and uncovering its ring-opening dynamics. The technique, based on attosecond core-level spectroscopy, provides an extremely detailed picture of the relaxation process.
Scientists have developed a novel universal light-based technique to control valley polarization in bulk materials, overcoming previous limitations. The discovery enables the manipulation of valley population without being restricted by specific material properties.
A team of researchers from the Max Born Institute has demonstrated a new approach to all-attosecond pump-probe spectroscopy using a compact intense attosecond source. This enables the investigation of extremely fast electron dynamics in the attosecond regime, which is not accessible by current attosecond techniques.
Scientists have made significant progress in understanding ultrafast electron dynamics by tracking the motion of electrons released from zinc oxide crystals using laser pulses. The research team combined photoemission electron microscopy and attosecond physics technology to achieve temporal accuracy, enabling them to study the interact...
Scientists successfully record phase distribution of electrons, unveiling detailed structure of its complex wavefunction. The method uses attosecond laser pulse to visualize electron wavefunction in a gas.
A research team has developed a novel interferometer to investigate the ultrafast temporal evolution of coherence between electronic states coupled with nuclear dynamics in a molecule. The interferometer resolves attosecond optical and quantum interference, enabling studies of molecular dynamics.
The researchers successfully demonstrated attosecond-pump attosecond-probe spectroscopy to study non-linear multi-photon ionization of atoms. The experiment showed that the absorption of four photons from two attosecond pulse trains led to three electrons being removed from an argon atom.
Researchers have demonstrated a new method for guiding light in an energy-scalable manner using two refocusing mirrors and thin nonlinear glass windows. This approach enables the compression of laser pulses to tens of femtosecond duration with gigawatt peak power.
A team led by Prof. Dr. Giuseppe Sansone used attosecond pulses to investigate the motion of electrons after photon absorption, finding they experience a complex landscape with potential peaks and valleys. This approach can be extended to more complex molecular systems, providing unprecedented temporal resolution.
Scientists at ELI ALPS developed a high-flux 100kHz attosecond pulse source driven by a high-average power annular laser beam. The method relies on the strong field effect of high harmonic generation to separate attosecond pulses from the driving laser beam.
Quantum entanglement is studied in attosecond laser laboratory experiments, where neutral hydrogen molecules are ionized using an attosecond pulse. The experiment reveals a competition between vibrational coherence and entanglement, demonstrating the breakdown of local realism.
A team led by Prof. Dr. Maria Hoflund developed a method to focus broadband XUV radiation with a high demagnification factor, enabling the creation of high-intensity XUV pulses with attosecond pulse duration.
Researchers from Germany, China, Israel and Vietnam cracked the code on attosecond collision dynamics in solids. By analyzing high harmonic generation (HHG) in solids, they unveiled the structure and dynamics of information encoded within the band structure.
Scientists at the University of Freiburg have developed a method to control electronic dynamics in real time by shaping attosecond pulses. This breakthrough allows for the study of molecular or crystal responses and has potential applications in optimizing processes like photosynthesis and charge separation.
Researchers at the Laboratory for Attosecond Physics have successfully observed non-linear interaction of an attosecond pulse with electrons in one of the inner orbital shells around the atomic nucleus. This breakthrough was made possible by the development of a novel source of attosecond pulses.
Researchers at ICFO have successfully generated isolated attosecond pulses at the carbon K-edge, enabling real-time imaging of electronic motion in organic compounds and ultrafast devices. This breakthrough has significant implications for designing new materials and developing petahertz electronics.
Physicists create isolated attosecond pulses using a new method dubbed the "attosecond lighthouse" effect, which can help confirm theories of electron motion and yield insights into chemical reactions. The technique has several advantages over previous methods, including ease of implementation and minimal rotation required.
Researchers observe valence electrons' motion for the first time, revealing coherent superposition that controls properties. The discovery uses attosecond absorption spectroscopy to explore electron dynamics in atoms and molecules.
Scientists at Lund University have successfully filmed an electron for the first time, capturing its motion on a light wave after being pulled away from an atom. The research uses attosecond pulses to study electron collisions with atoms, providing new opportunities to monitor and understand electron behavior.