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Search results for electromagnetic fields

General Âé¶¹ÒùÔºics Sep 20, 2024

Scientists propose a new method to search for dark matter using LIGO

A new study published in Âé¶¹ÒùÔºical Review Letters (PRL) proposes using gravitational wave detectors like LIGO to search for scalar field dark matter.

General Âé¶¹ÒùÔºics Sep 18, 2024

Neutron scientists wake a sleeping giant after nine-month nap and makeover

What's the best way to wake a giant after a long nap? "Very carefully, and with a lot of planning," said a grinning John Galambos. He was the project director for the Proton Power Upgrade project, or PPU, at Oak Ridge National ...

Optics & Photonics Sep 17, 2024

New technology produces ultrashort ion pulses

TU Wien (Vienna) has succeeded in generating laser-synchronized ion pulses with a duration of well under 500 picoseconds, which can be used to observe chemical processes on material surfaces. The work has been published in ...

Optics & Photonics Sep 12, 2024

Latent information carried by photons enables super-precise spectrometer

Two researchers at the University of Warsaw developed a quantum-inspired super-resolving spectrometer for short pulses of light. The device designed in the Quantum Optical Devices Lab at the Centre for Quantum Optical Technologies, ...

Astronomy Sep 11, 2024

Daniel K. Inouye Solar Telescope produces its first magnetic field maps of the sun's corona

The Daniel K. Inouye Solar Telescope, the world's most powerful solar telescope, operated by the NSF National Solar Observatory (NSO), achieved a major breakthrough in solar physics by successfully producing its first detailed ...

Optics & Photonics Sep 9, 2024

Scientists prove long-standing wave amplification theory

Âé¶¹ÒùÔºicists at the University of Southampton have tested and proven a 50-year-old theory for the first time using electro-magnetic waves. They have shown that the energy of waves can be increased by bouncing "twisted waves"—those ...

Optics & Photonics Aug 30, 2024

Complete-basis-reprogrammable coding metasurface for generating dynamically-controlled holograms

An article in Opto-Electronic Advances, discusses complete-basis-reprogrammable coding metasurface for generating dynamically-controlled holograms under arbitrary polarization states.

Astronomy Aug 29, 2024

Using atomic excitations to measure the rotation of spacetime

How would atoms behave near a supermassive object? We know how atoms behave in extremely weak gravity like that at the Earth's surface: They can be excited from a lower energy level to a higher one when an electron absorbs ...

Astronomy Aug 29, 2024

Supercomputer simulations reveal the nature of turbulence in black hole accretion disks

Researchers at Tohoku University and Utsunomiya University have made a breakthrough in understanding the complex nature of turbulence in structures called accretion disks surrounding black holes, using state-of-the-art supercomputers ...

Optics & Photonics Aug 28, 2024

Ultracompact fiber-tip sensor achieves high sensitivity in magnetic field and temperature measurements

Magnetic field sensing plays a pivotal role in numerous fields of medical, transportation and aerospace. The optical fiber-based magnetic field sensor possesses outstanding characteristics of compactness, long-distance interrogation, ...

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