The lower horizontal axis is the axion mass, the upper horizontal axis is the microwave frequency corresponding to the mass, and the vertical axis is the coupling constant of axion-to-photon conversion. Both axes are in logarithm scales. CAPP-8TB indicates the range of mass reported in this study. CAST indicates experimental […]

Numerical simulations of strong field coherent control in atomic hydrogen using azimuthal vector beams. Credit: Physical Review X (2020). DOI: 10.1103/PhysRevX.10.011063 A combined team of researchers from the University of Ottawa and National Research Council Canada has developed a new way to generate rapid strong magnetic fields using laser pulses. In […]

What goes in is not what comes out with a spatio-temporally modulated metasurface reflector. Credit: Los Alamos National Laboratory Researchers at Los Alamos National Laboratory are reinventing the mirror, at least for microwaves, potentially replacing the familiar 3-D dishes and microwave horns we see on rooftops and cell towers with […]

Spot the moving table: the LEGO-based device can be seen next to the beam line. Credit: Michael Deveaux/CERN An improvised device, assembled using toy bricks, helped scientists conduct tests at CERN’s NA61/SHINE. CERN’s accelerator complex helps scientists probe the fundamental building blocks of the universe. But when one scientist needed […]

Could there be a new kind of light in the universe? Since the late 19th century, scientists have understood that, when heated, all materials emit light in a predictable spectrum of wavelengths. Research published today in Nature Scientific Reports presents a material that emits light when heated that appears to exceed the limits […]

Direct hit. A soft x-ray (white) hits a holmium atom (green). A photo-electron zooms off the holmium atom, which releases energy (purple) that jumps to the 80-carbon fullerene cage surrounding the holmium. The cage then also loses an electron. Credit: Razib Obaid/University of Connecticut Radiation damage spreads among close neighbors: […]

Credit: CC0 Public Domain Researchers from the Zepler Institute for Photonics and Nanoelectronics at the University of Southampton have demonstrated a new leap in hollow-core fiber performance, underlining the technology’s potential to soon eclipse current optical fibers. Hollow-core fibers replace conventional glass cores with gas or a vacuum to enable […]

Schematic image of permanent magnet stellarator with plasma in yellow. Red and blue indicate permanent magnets with simplified coils surrounding the vessel. Credit: Michael Drevlak Permanent magnets akin to those used on refrigerators could speed the development of fusion energy—the same energy produced by the sun and stars. In principle, […]