Transient grating spectroscopy with ultrafast X-rays
Researchers at the Paul Scherrer Institute PSI have succeeded for the first time in looking inside materials using the method of transient grating spectroscopy with ultrafast X-rays at SwissFEL. The experiment at PSI is a milestone in observing proce.....»»
X-rays advance understanding of Earth"s core-mantle boundary and super-Earth magma oceans
Researchers at the Department of Energy's SLAC National Accelerator Laboratory have revealed new details about Earth's core-mantle boundary and similar regions found in exoplanets......»»
As the Advanced Photon Source upgrade nears completion, scientists anticipate experimental possibilities
In June, X-rays began to shine again at the U.S. Department of Energy's (DOE) Advanced Photon Source (APS), a facility where intense, directed X-ray light beams are used to inspect everything from materials for better solar cells and batteries to ant.....»»
Headband-like device uses speckle contrast optical spectroscopy to predict stroke risk
A team of researchers from the Keck School of Medicine of USC and California Institute of Technology (Caltech) have developed a potential new way to measure a person's stroke risk that is cost-effective and noninvasive, akin to a cardiac stress test......»»
Raman spectroscopy study decodes symbiotic interactions in marine algae
In a recent study, researchers from the Leibniz Institute of Photonic Technology (Leibniz IPHT) and the Friedrich Schiller University Jena have shown how they can non-invasively and non-destructively investigate the growth and interactions of the gre.....»»
Nuking a huge asteroid could save Earth, lab experiment suggests
Humanity could use a nuclear bomb to deflect a massive, life-threatening asteroid hurtling towards Earth in the future, according to scientists who tested the theory in the laboratory by blasting X-rays at a marble-sized "mock asteroid"......»»
Ultra-high speed camera for molecules: Attosecond spectroscopy captures electron transfer dynamics
In nature, photosynthesis powers plants and bacteria; within solar panels, photovoltaics transform light into electric energy. These processes are driven by electronic motion and imply charge transfer at the molecular level. The redistribution of ele.....»»
Discovering new energy levels in atomic hyperfine structures
Since the late 1960s, the Laboratoire Aimé Cotton (LAC) in Orsay, France, has made significant progress in the classification of complex atomic spectra. These advances have been driven both by the development of Fourier transform spectroscopy, and t.....»»
Sharks and rays leap out of the water for many reasons, including feeding, courtship and communication
Many sharks and rays are known to breach, leaping fully or partly out of the water. In a recent study, colleagues and I reviewed research on breaching and ranked the most commonly hypothesized functions for it......»»
Proof-of-concept study uses X-rays to target mock-up asteroids in a vacuum
An X-ray pulse may be able to vaporize the surface of an asteroid and change its trajectory, according to a proof-of-concept paper published in Nature Physics. A laboratory experiment that mimics the deflection of an asteroid model using this techniq.....»»
Better than blood tests? Nanoparticle potential found for assessing kidneys
In a study published July 29 in Advanced Materials, University of Texas at Dallas researchers found that X-rays of the kidneys using gold nanoparticles as a contrast agent might be more accurate in detecting kidney disease than standard laboratory bl.....»»
X-Ray Imaging and Spectroscopy Mission unveils black hole and supernova remnant surroundings
The X-Ray Imaging and Spectroscopy Mission (XRISM) has revealed the structure, motion and temperature of the material around a supermassive black hole and in a supernova remnant in unprecedented detail. Astronomers presented the first scientific resu.....»»
Scientists scan TRAPPIST-1 for technosignatures
If you are going to look for intelligent life beyond Earth, there are few better candidates than the TRAPPIST-1 star system. It isn't a perfect choice. Red dwarf stars like TRAPPIST-1 are notorious for emitting flares and hard X-rays in their youth,.....»»
Photoacoustic sensor achieves high-sensitivity detection of multiple greenhouse gases
Recently, Prof. Gao Xiaoming's team from the Hefei Institutes of Physical Science of the Chinese Academy of Sciences, developed a novel photoacoustic spectroscopy (PAS)-based sensor that enabled simultaneous, high-sensitive detection of CO2, CH4, and.....»»
Neural network improves tunable diode laser absorption spectroscopy quantification accuracy
A research group from the Hefei Institutes of Physical Science (HFIPS) of the Chinese Academy of Sciences recently developed a neural network-based absorbance recovery method to improve the accuracy of single path tunable diode laser absorption spect.....»»
NMR spectroscopy method provides faster way to determine chiral structure of molecules
Researchers from Karlsruhe Institute of Technology (KIT) and Voxalytic GmbH have developed a new method that allows, for the first time, the elucidation of the chiral structure of molecules—the exact spatial arrangement of the atoms—by nuclear ma.....»»
Study of cloud movement in the Arctic could provide better understanding of climate change in the region
Special features of the Arctic climate, such as the strong reflection of the sun's rays off the light snow or the low position of the sun, amplify global warming in the Arctic. However, researchers are often faced with the challenge of modeling the u.....»»
Study: Giant ultrafast dichroism and birefringence with active nonlocal metasurfaces
The fine and efficient control of the properties of light at ultrafast speed down to the picosecond timescale is a challenging task, crucial for many scientific applications and technologies. For instance, in free-space optical links, manipulating on.....»»
The world"s fastest single-shot 2D imaging technique films ultrafast dynamics in flames
Candle flames and airplane engines produce tiny soot particles from polycyclic aromatic hydrocarbons (PAHs) as their precursors, both of which are harmful to humans and the environment. These carbon-based particles are also common in space, making up.....»»
Cold-atom simulator demonstrates quantum entanglement between electronic and motional states
Researchers from the Institute for Molecular Science have revealed quantum entanglement between electronic and motional states in their ultrafast quantum simulator, generated by the repulsive force due to the strong interaction between Rydberg atoms......»»
Spectroscopy study reveals electrons in cocatalyst periphery drive photocatalytic hydrogen evolution
Synchronizing periodic excitations of photocatalysts with a Michelson interferometer on operando FT–IR spectroscopy, researchers led by Toshiki Sugimoto succeeded in observing and identifying the reactive electron species for photocatalytic hydroge.....»»