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Neglected atom has top properties for atomic clocks

Researchers at the Centre for Quantum Technologies in Singapore propose that lutetium clocks could outperform today's timekeepers

The six-month effort, involving a high-power laser like those used for industrial cutting, gave a result for the blackbo…

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The photoexcited graphene puzzle solved

A boost for graphene-based light detectors

This simple scenario of light-induced electron heating in graphene can explain many observed effects. Aside from describ…

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Unexpected Behaviour of Atom Clouds Challenges Existing Theories

Experiments with ultra-cold atoms at the TU Wien have shown surprising results: coupled atom clouds synchronize within milliseconds. This effect cannot be explained by standard theories.

When two ultra-cold quantum gases are coupled, they can synchronize spontaneously, oscillating in perfect unison after j…

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USTC develops all-optically controlled non-reciprocal multifunctional photonic devices

Light has bidirectional transmission reciprocity in common dielectric material. Breaking this reciprocity in the directi…

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Freeing electrons to better trap them

For the first time, researchers from UNIGE and MBI in Berlin have placed an electron in a dual state -- neither freed nor bound -- thus confirming a hypothesis from the 1970s

The more intense a laser is, the easier should it be to ionise the atom--in other words, to tear the electrons away from…

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Shrinking the Synthesizer

Engineers team up to reduce the size, cost and power requirements of an optical frequency device

Optical frequency synthesizers provide unprecedented performance but until now have been large, expensive and power hung…

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Nanoscale measurements 100x more precise, thanks to improved two-photon technique

Two-photon technique more stable than existing one-photon technology

Technique uses photons, fundamental components of light, to measure nanoscopic materials thinner than 100,000th the widt…

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Tech Bends Light More Efficiently, Offers Wider Angles for Light Input

Engineering and physics researchers at North Carolina State University have developed a new technology for steering ligh…

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Physicists Discover Way to Control Transitions Between States of Matter

The researchers observed that an increase in the laser pumping power triggered nonlinear effects in the system. By incre…

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Einstein-Podolsky-Rosen paradox observed in many-particle system for the first time

The experiment used lasers to cool atoms to just a few billionths of a degree above absolute zero. At these temperatures…

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Long-distance relationships of particles: Electron-hole pairs in two-dimensional crystals.

Researchers of TU Dresden reveal the nature of optical excitations in two-dimensional crystals within an international c…

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A Microscopic Roundabout for Light

AMOLF develops a magnet-free optical circulator

Circulators allow to transmit information without loss among more than two nodes in a network, which is why they are alr…

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Newly improved glass slide turns microscopes into thermometers

Advancement could streamline and boost scientific research all over the world, help computing industry

To make use of the new coating, a laser is needed. Zhao says a common helium-neon laser, which can be seamlessly integra…

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Light could make semiconductor computers a million times faster or even go quantum

A team of researchers in Germany and at the University of Michigan have demonstrated how infrared laser pulses can shift…

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New method eliminates guesswork when lenses go freeform

Lenses and mirrors with freeform surfaces enable designers to focus light within optical devices that are lighter, more …

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Stanford researchers investigate behavior in quantum systems with a toy-inspired technique

By placing the most magnetic element of the periodic table into a quantum version of a popular desktop toy, Stanford scientists explore the emergence of quantum chaos and thermal equilibrium.

Lev and his group built their own quantum version of Newton’s cradle in order to answer questions about how the chaotic …

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Dielectric Metamaterial is Dynamically Tuned by Light

Metal-free metamaterial can be swiftly tuned to create changing electromagnetic effects

For this study, the cylinders were sized to interact with terahertz waves—a band of the electromagnetic spectrum that si…

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‘Exceptional’ research points way toward quantum discoveries

Rice University scientists make tunable light-matter couplings in nanotube films

In the new work, Kono and Rice postdoctoral researcher and lead author Weilu Gao combined techniques from the earlier pa…

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Scientists Develop Nanodiamond-based Controllable Light Source

A research group from ITMO University has developed the first-ever controlled nanodiamond-based light source. Experiment…

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Improving mid-infrared imaging and sensing

Artificial optical materials could allow cheaper, flatter, more efficient detectors for night vision and other uses.

The new approach uses a flat, artificial material composed of nanostructured optical elements, instead of the usual thic…

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