Physics General News

Optical barcodes expand range of high-resolution sensor

 Physics General News
 26 April 2024
The same geometric quirk that lets visitors murmur messages around the circular dome of the whispering gallery at St. Paul's Cathedral in London or across St. Louis Union Station's whispering arch also enables the construction of high-resolution optical sensors. Whispering-gallery-mode (WGM)...

Large Hadron Collider experiment zeroes in on magnetic monopoles

 Physics General News
 26 April 2024
The late physicist Joseph Polchinski once said the existence of magnetic monopoles is "one of the safest bets that one can make about physics not yet seen." In its quest for these particles, which have a magnetic charge and are predicted by several theories that extend the Standard Model, the MoEDAL...

Scientists capture X-rays from upward positive lightning

 Physics General News
 26 April 2024
Globally, lightning is responsible for over 4,000 fatalities and billions of dollars in damage every year; Switzerland itself weathers up to 150,000 strikes annually. Understanding exactly how lightning forms is key for reducing risk, but because lightning phenomena occur on sub-millisecond...

IRIS beamline at BESSY II gets a new nanospectroscopy end station

 Physics General News
 25 April 2024
The IRIS infrared beamline at the BESSY II storage ring now offers a fourth option for characterizing materials, cells and even molecules on different length scales. The team has extended the IRIS beamline with an end station for nanospectroscopy and nanoimaging that enables spatial resolutions down...

First experimental proof for brain-like computer with water and salt

 Physics General News
 25 April 2024
Theoretical physicists at Utrecht University, together with experimental physicists at Sogang University in South Korea, have succeeded in building an artificial synapse. This synapse works with water and salt and provides the first evidence that a system using the same medium as our brains can...

Airborne single-photon lidar system achieves high-resolution 3D imaging

 Physics General News
 25 April 2024
Researchers have developed a compact and lightweight single-photon airborne lidar system that can acquire high-resolution 3D images with a low-power laser. This advance could make single-photon lidar practical for air and space applications such as environmental monitoring, 3D terrain mapping and...

A shade closer to more efficient organic photovoltaics

 Physics General News
 24 April 2024
Transparent solar cells will transform the look of infrastructure by enabling many more surfaces to become solar panels. Now, materials called non-fullerene acceptors that can intrinsically generate charges when exposed to sunlight could make semitransparent organic photovoltaics easier to produce,...

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