Shaken, not stirred: Ultrafast skyrmion reshuffling
Smaller, faster, more energy-efficient: future requirements to computing and data storage are hard to fulfill and alternative concepts are continuously explored. Small magnetic textures, so-called skyrmions, may become an ingredient in novel memory a.....»»
Bringing ultrafast physics to structural biology reveals the dance of molecular "coherence" in unprecedented clarity
How molecules change when they react to stimuli such as light is fundamental in biology, for example during photosynthesis. Scientists have been working to unravel the workings of these changes in several fields, and by combining two of these, resear.....»»
Using sound waves to image nanostructures
The potential of an ultrafast form of transmission electron microscopy to measure sound waves in nanostructures has been demonstrated by three RIKEN physicists. This could help realize a high-resolution imaging method that uses ultrahigh-frequency so.....»»
Talk to Me’s ending, explained
A24 has shaken the horror landscape once again with its latest film, Talk to Me, so let's talk about the film and its shocking ending......»»
Observation of a refractive index line shape in ultrafast XUV transient absorption spectroscopy
Ultrafast extreme ultraviolet (XUV) spectroscopy is a powerful technique for probing the dynamics of atoms and molecules with attosecond time resolution. However, conventional XUV absorption measurements only provide information about the imaginary p.....»»
Phase-tailored assembly and encoding of dissipative soliton molecules
Streams of ultrashort light pulses delivered from mode-locked laser resonators stimulate potential applications in ultrafast science and information technology. Here the elementary pulse entity, termed dissipative solitons in contrast to the pure sol.....»»
Fabrication of nanoscale photonic crystals with an ultrafast laser
The light control performance of photonic crystals is closely related to their lattice constant, which typically requires the lattice constant to be in the same order of magnitude as the working wavelength. In crystal materials, the photonic crystal.....»»
Two types of ultrafast mode-locking operations generation from an Er-doped fiber laser based on germanene nanosheets
Saturable absorbers as passive modulators in passively mode-locked fiber lasers play a crucial role in the generation of ultrashort pulses. Germanene, a graphene-like two-dimensional material with fast carrier relaxation time and large nonlinear abso.....»»
Study finds a solution to longstanding problem of ultrafast valley decoherence
Since the realization that a linearly polarized light can create K-K' valley coherent excitons in monolayer transition metal dichalcogenide (TMDC) semiconductors back in 2013, it has been a longstanding goal for researchers to use these excitonic sta.....»»
Overcoming the trade-off between sub-nanometer size and high metal loading in meta cluster catalysts
Recognizing the ultrafast laser-to-thermal conversion capacity and the impermeable, flexible features of graphene Dr. Ye-Chuang Han and Prof. Zhong-Qun Tian conceived the idea of using the material as the diffusion-constrained nanoreactor for high-te.....»»
Why Starfield’s system requirements are doing your PC a favor
Starfield and Cyberpunk 2077 has stirred some discourse about requiring an SSD, but they aren't the first games to make the jump......»»
Ultrafast and tunable conversion of high-frequency signals into visible light
A study carried out by a research team from the Helmholtz-Zentrum Dresden-Rossendorf (HZDR), the Catalan Institute of Nanoscience and Nanotechnology (ICN2), University of Exeter Centre for Graphene Science, and TU Eindhoven demonstrates that graphene.....»»
A new dynamic probe of electric forces between molecules
Molecules in water and other polar media are subject to strong electric forces. Such forces originate from their liquid environment, which at ambient temperature undergoes ultrafast structural fluctuations. A new method maps the optical absorption of.....»»
Scientists find why the "big one" may not have shaken California...yet
In the middle of the driest California desert, just along the southerly State Route 86, you can find sun-bleached shells littering the ground. They're telltale signs of a once colossal lake that has come and gone over the last thousands of years, a p.....»»
Illuminating the molecular ballet in living cells using an ultrafast camera
Researchers at Kyoto University, Okinawa Institute of Science and Technology Graduate University (OIST), and Photron Limited in Japan have developed the world's fastest camera capable of detecting fluorescence from single molecules. They describe the.....»»
Ultrafast terahertz emission from emerging symmetry-broken materials
Terahertz (THz) emission spectroscopy has emerged as a valuable technique for investigating static physical properties as well as ultrafast dynamics occurring in novel material systems that may remain hidden to other probes......»»
Ultrafast X-ray spectroscopy: Watching molecules relax in real time
Designing the next generation of efficient energy conversion devices for powering our electronics and heating our homes requires a detailed understanding of how molecules move and vibrate while undergoing light-induced chemical reactions......»»
High-temperature shock synthesis of high-entropy alloy nanoparticles for catalysis
High-temperature shock (HTS) is an emerging synthesis method with kinetics-dominated non-equilibrium characteristics, which can achieve an ultrafast heating/cooling rate of ~105 K/s and a peak temperature larger than ~3000 K within a time scale of se.....»»
High-power, high-energy, all-fiber Mamyshev oscillator
High power/energy ultrafast fiber lasers have broadband applications in material processing, medicine, advanced manufacturing and other fields. Compared with solid-state lasers, fiber lasers have the advantages of compact systems, flexibility, good h.....»»
"Charge density wave" linked to atomic distortions in would-be superconductor
What makes some materials carry current with no resistance? Scientists are trying to unravel the complex characteristics. Harnessing this property, known as superconductivity, could lead to perfectly efficient power lines, ultrafast computers, and a.....»»
Scientists capture elusive chemical reaction using enhanced X-ray method
Researchers at SLAC National Accelerator Laboratory captured one of the fastest movements of a molecule called ferricyanide for the first time by combining two ultrafast X-ray spectroscopy techniques. They think their approach could help map more com.....»»