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Search results for electromagnetic fields

Optics & Photonics Sep 30, 2021

Study unveils the quantum nature of the interaction between photons and free electrons

For several decades, physicists have known that light can be described simultaneously as a wave and a particle. This fascinating 'duality' of light is due to the classical and quantum nature of electromagnetic excitations, ...

Quantum Âé¶¹ÒùÔºics Sep 28, 2021

Cracking open strong field quantum electrodynamics

A newly published theoretical and computer modeling study suggests that the world's most powerful lasers might finally crack the elusive physics behind some of the most extreme phenomena in the universe—gamma ray bursts, ...

Plasma Âé¶¹ÒùÔºics Sep 8, 2021

New superconducting magnet breaks magnetic field strength records, paving the way for fusion energy

It was a moment three years in the making, based on intensive research and design work: On Sept. 5, for the first time, a large high-temperature superconducting electromagnet was ramped up to a field strength of 20 tesla, ...

General Âé¶¹ÒùÔºics Sep 7, 2021

Creating a non-radiating source of electromagnetism

An international team of researchers has developed a way to create non-radiating sources of electromagnetism. In their paper published in the journal Âé¶¹ÒùÔºical Review Letters, the group describes their technique and how well ...

Space Exploration Aug 18, 2021

Sights and sounds of a Venus flyby

ESA's Solar Orbiter and BepiColombo spacecraft made a historic Venus flyby earlier this week, passing by the planet within 33 hours of each other and capturing unique imagery and data during the encounter.

Optics & Photonics Aug 9, 2021

Exploring the limits of light-matter coupling at the nanoscale

The interplay between light and matter encompasses a stunning spectrum of phenomena, from photosynthesis to the captivating colors of rainbows and butterfly wings. Diverse as these manifestations may be, they involve very ...

General Âé¶¹ÒùÔºics Aug 5, 2021

This quantum crystal could be a new dark matter sensor

Âé¶¹ÒùÔºicists at the National Institute of Standards and Technology (NIST) have linked together, or "entangled," the mechanical motion and electronic properties of a tiny blue crystal, giving it a quantum edge in measuring electric ...

Optics & Photonics Jul 29, 2021

Collisions of light produce matter/antimatter from pure energy

Scientists studying particle collisions at the Relativistic Heavy Ion Collider (RHIC)—a U.S. Department of Energy Office of Science user facility for nuclear physics research at DOE's Brookhaven National Laboratory—have ...

Bio & Medicine Jul 29, 2021

Alternating magnetic field-responsive nano-platform developed for controlled pesticide release

Pesticides play a key role in controlling weeds, pests, and diseases in modern agriculture to promote crop yield. As one of the most extensively used neonicotinoid insecticides, imidacloprid can effectively kill insects. ...

General Âé¶¹ÒùÔºics Jul 28, 2021

A single-molecule laser nanospectroscopy technique with micro-electron volt energy resolution

When molecules are excited, they can give rise to a variety of energy conversion phenomena, such as light emission and photoelectric or photochemical conversion. To unlock new energy conversion functions in organic materials, ...

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