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Tag: Optical physics

Coldest: how a letter to Einstein and advances in laser-cooling technology led physicists to new quantum states of matter – Physics World

The road to Bose–Einstein condensates and degenerate Fermi gases was paved with ideas that shouldn’t have worked, but did, as Chad Orzel explains in...

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Giant orbital magnetic moments and paramagnetic shift in artificial relativistic atoms and molecules

Novoselov, K. S. et al. Two-dimensional gas of massless Dirac fermions in graphene. Nature 438, 197–200 (2005).Article  CAS  Google Scholar  Katsnelson, M., Novoselov,...

Two/quasi-two-dimensional perovskite-based heterostructures: Construction, properties and applications

Feb 03, 2023 (Nanowerk News) Van der Waals heterostructures integrated from various two-dimensional (2D) layered materials provide fundamental building blocks for optoelectronic devices with...

Research Bits: Jan. 3

Printing electronics on curved surfaces Researchers from North Carolina State University have demonstrated a new technique for directly printing electronic circuits onto curved and corrugated...

Anti-laser enables near-perfect light absorption

Physicists in Austria and Israel say they have developed an “anti-laser”, or “coherent perfect absorber”, that can enable any material to absorb all light...

Anti-reflection coating allows perfect light transmission

A new technique that completely prevents waves from being reflected off surfaces could improve wireless signal reception and biomedical imaging techniques. Developed by researchers...

Helical light tells chiral molecules apart

A new optical technique that is very efficient at distinguishing between molecules that are mirror images of each other could have major applications in...

Meta-atoms act like road signs for light waves

An illustration of the ANU metasurfaces. Credit: Ella Maru Studio Usually, when light travels through a material, it produces an image. But when it passes...

Photons stay entangled despite huge jump in frequency

A new technique that keeps two photons entangled while greatly increasing the frequency of one of them has been demonstrated by researchers in Germany....

Atoms and molecules make vortex beams

"Twisted" wavefront structures had previously only been seen in photons and electrons

The post Atoms and molecules make vortex beams appeared first on Physics World.

Tiny particles produce huge photon avalanches

Researchers in the US, Poland and Korea have observed photon avalanching – a chain-reaction-like process in which the absorption of a...

‘Cartwheeling’ light reveals new type of polarized light-matter interaction

Technologies that rely on interactions between matter and polarized light usually stick to the well-understood effects of linear or circular polarization. Researchers at Rice...

Stimulated emission detection images single nanocrystals at high speed

A new technique for imaging single molecules that does not rely on fluorescent emitters could find a host of applications in nanotechnology, photonics and...

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