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.
Researchers developed a new method to observe nanoscale spin waves, directly detecting short-wavelength magnons using resonant soft X-rays. The technique, called magnon momentum microscopy (MMM), reveals strong nonlinear interactions and four-magnon scattering processes in magnetic materials.
Dual-comb spectroscopy enables precise, rapid, and broadband measurements using two optical frequency combs with slightly different repetition frequencies. This technique has been implemented across the electromagnetic spectrum, from terahertz to visible range, with ongoing efforts towards ultraviolet range.
Scientists have directly imaged the effect of short current pulses on skyrmions, finding that they break up into disordered patterns before re-forming in a predictable manner. This discovery opens up new possibilities for computing concepts like probabilistic computing.
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 Max Born Institute developed a laboratory-scale soft-X-ray instrument to study ultrafast processes of emergent textures in magnetic materials. They observed nanoscale magnetic maze domains and discovered complex reorganization patterns on picosecond to nanosecond timescales.
Scientists at Max Born Institute develop technique to generate µJ-level tunable few-fs UV pulses in VUV range. They successfully characterized few-fs pulses tuned between 160 and 190 nm using electron FROG, revealing pulse duration of 2-3 fs.
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 discovered that ultrafast magnetization switching proceeds with a speed of about 2000 meters per second, not uniformly throughout the material. A moving boundary propagates through the film, sweeping through the entire layer in roughly 4.5 ps.
Scientists generate collective molecular vibrations in a liquid by placing an electron ultrafast. These vibrations govern the electric behavior of the liquid and can be tuned to adapt its properties. The study reveals new insights into polar liquids' dynamics.
A team of researchers developed a reliable method to create donut-like, topologically rich spin textures called skyrmion bags in thin ferromagnetic films. The success rate of generating such textures using single laser pulses is significantly higher than magnetic-field-driven approaches.
Scientists demonstrate ultrafast plasmon-enhanced magnetic bit switching, enabling faster and more robust memory devices. The study uses plasmonic gold nanostructures to confine light and achieve magnetization switching with single femtosecond laser pulses.
Scientists have discovered a way to turn ordinary liquids into epsilon-near-zero (ENZ) materials by interacting them with intense femtosecond laser pulses. This creates a new class of materials with tunable light propagation properties, opening up possibilities for advances in optical sensing and communication.
A new structure of light has been discovered that can accurately measure chirality in molecules, a property of asymmetry important in physics, chemistry, biology, and medicine. This 'chiral vortex' provides an accurate and robust form of measurement, allowing for the detection of chiral biomarkers.
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.
A team of researchers has determined a fundamental spatial limit for light-driven magnetization reversal in nanometer-scale materials. They found that the minimum size for all-optical switching is around 25 nm due to ultrafast lateral electron diffusion, which rapidly cools illuminated regions.
Researchers used ultrafast terahertz Stark spectroscopy to characterize the molecular quantum states involved in the proton pump reaction of bacteriorhodopsin. The study reveals pronounced quantum state mixing in the early electronic and nuclear dynamics, supporting a picture of mixed excited-state characters.
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 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.
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.
Scientists generate and control coherent polaron oscillations, enabling the manipulation of dynamic electric properties of polar liquids. The study demonstrates the importance of many-body interactions in polar molecular ensembles.
Scientists have developed a new dynamic probe to measure electric interactions between molecules and the environment. Using ultrashort terahertz pulses, they mapped the optical absorption of molecules in an external electric field, revealing the strength and dynamics of these forces.
Researchers at Max Born Institute find that ultrafast mid-infrared excitation of electrons in bismuth reduces crystal symmetry, opening new quantum pathways for coherent phonon excitation. This leads to bidirectional atomic motions and oscillations with a frequency different from low-excitation levels.
Researchers at Max Born Institute have developed a hybrid laser pulse that controls ultrafast light-induced currents in giant materials. This breakthrough enables the creation of valley-currents and spin-currents, vital for future valleytronics technology.
A team of researchers at the Max Born Institute developed a novel method for X-ray Magnetic Circular Dichroism (XMCD) spectroscopy using a laser-driven plasma source. This breakthrough enables precise determination of magnetic moments in buried layers without damaging samples, and can monitor ultrafast magnetization processes.
Researchers create a new method, CCI, to capture high-resolution images of material fluctuations using powerful X-ray sources. The technique allows for non-destructive imaging and reveals patterns that were previously inaccessible.
Researchers from the Max Born Institute report on a new light source generating ultrashort infrared pulses beyond 10 µm wavelength, exhibiting high potential for vibrational spectroscopy and optical materials processing. The system demonstrates excellent beam quality and stability, with output power and repetition rate scalable.
Researchers from the Max Born Institute found that magnesium ions reduce ultrafast fluctuations in water's hydration shell, slowing solvation dynamics. The study reveals a short-range effect of individual ion pairs on dilute aqueous systems.
Researchers at the Max Born Institute have used novel ultrashort soft X-ray spectroscopy to study the fate of molecular nitrogen when an electron is kicked out. They found that the B state has a similar degree of excitation as the X state, contradicting previous models. Instead, a coherent interplay between light fields enables lasing ...
Researchers have gained insight into the electronic structure of hydrated proton complexes, revealing that three inner water molecules are drastically modified by the proton. The first hydration shell senses the electric field of the proton through Coulomb interactions.
A team at Max Born Institute develops methods to reliably create and guide magnetic skyrmions at controlled positions, enabling the study of their dynamics and potential applications in computing and data storage. By employing focused helium-ion irradiation and nanopatterned reflective masks, researchers can control the generation and ...
Researchers observed a novel type of excitation, called a polaron, where collective oscillations of the electron and its screening cloud arise at terahertz frequencies. These oscillations persist for tens of picoseconds and are impulsively triggered by ultrafast electron localization.
Scientists at Max Born Institute create novel method to probe magnetic thin film systems, identifying heat injection from platinum layer as cause of magnetization changes. The approach allows femtosecond temporal and nanometer spatial resolution, paving way for studying ultrafast magnetism and device-relevant geometries.
Scientists at Max Born Institute demonstrate ultrafast emergence of all-optical switching by generating a nanometer-scale grating through interference of two pulses in the extreme ultraviolet spectral range. The researchers identify an intensity ratio as a fingerprint observable for AOS in diffraction experiments.
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.
A team of researchers has observed a new kind of wave mixing process involving soft x-rays, allowing for selective tracking of electrons in materials. By analyzing this process, they gain insights into the nature of the material and its electronic structure.
Scientists have discovered a way to accelerate write/erase cycles in all-optical magnetization switching using rare-earth transition metal alloys. By optimizing heat transfer rates and exchange interactions, they achieved terahertz repetition rates for magnetic bits, paving the way for faster data storage technology.
Researchers have observed persistent swinging of electrons between atomic sites in crystals using ultrafast X-ray diffraction. The study reveals relocation of valence charge on the length scale of interatomic distances, paving the way for future studies of functional materials.
Researchers have provided direct insight into the electronic structure of a proton donating group in an amine aromatic photoacid using ultrafast X-ray spectroscopy. The study reveals major electronic structure changes occur on the base side of the Förster cycle, resolving the long-standing open question.
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.
Researchers have developed a novel concept for generating ultrashort THz waveforms by tailoring electronic currents in a compact optically driven quantum device. The THz pulses display a single oscillation of the electric field and can be tailored via the nonlinear generation process.
Researchers discovered ultrafast coupled atomic vibrations in few-layer hexagonal boron nitride, resulting in a frequency down-shift of the optical phonons. The study also reveals a nonlinear optical effect that can be induced by moderate power light, holding potential for optoelectronic applications.
Researchers successfully study antiferromagnetic samples using resonant magnetic scattering at a laboratory scale. The technique allows direct insights into the magnetic order of these materials, which have higher speed, stability, and energy efficiency than ferromagnets.
Scientists have developed a new scheme to generate intense XUV pulses using near-infrared lasers, shrinking the need for large laboratory facilities. The setup produces high-intensity XUV pulses with potential applications in attosecond-pump attosecond-probe spectroscopy and nanoscale imaging.
Researchers at Max Born Institute created and annihilated skyrmions using laser pulses, demonstrating precise control over their density. The process has potential for use in stochastic computing, enabling fast and energy-efficient data storage and processing.
Researchers have revealed conditions for robust entangled states transport in photonic topological insulators. They identify physical mechanisms and thresholds for maximizing entanglement while preserving topological protection.
Researchers at Max Born Institute observe terahertz radiation from electrons localized in liquid water, displaying a frequency between 0.2 and 1.5 THz. The emission persists for up to 40 ps, with surprisingly weak damping, allowing for potential manipulation.
Scientists at Max Born Institute create new method for generating narrowband XUV laser pulses by employing four-wave mixing scheme. This enables applications in electron spectroscopy, resonant transitions, and coherent diffractive imaging.
Researchers at the Max Born Institute developed a novel laser-driven X-ray source generating femtosecond copper K° pulses with unprecedented flux of 10^12 photons per second. This breakthrough enables investigating ultrafast structure changes in condensed matter by time-resolved X-ray scattering.