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News articles about "Optical"

Small size enhances charge transfer in quantum dots

Quantum dots
Quantum dots tiny semiconductor crystals with diameters measured in billionths of a meter have enormous potential for applications that make use of their ability to absorb or emit light and or electric charges Examples include ... - Read More

Golden trap: Highly sensitive system to detect individual molecules

System, molecules
Medical diagnostics is searching for substances capable of documenting early on whether a serious disease is developing or what its course will be In many cases the treacherous molecules are present only in trace amounts ... - Read More

Smashing science: Scientists discover how explosives respond to shockwaves

Science, Science
Lawrence Livermore National Laboratory researchers have combined ultrafast time resolved experimental measurements with theory to reveal how an explosive responds to a high impact shock The work involved advances in both ultrafast experimental shock wave ... - Read More

How light affects individual atoms

Tyndall National Institute and its collaborators are unravelling how atoms vibrate and change when hit with intense bursts of light The ground breaking work has been recognised through publication of a paper in the journal ... - Read More

Three-dimensional view helps laser in building new molecules

Building, molecules
Scientists have developed a new feedback method for optimizing the laser pulse shapes used in the control of chemical reactions In many ways traditional chemical synthesis is similar to cooking To alter the final product ... - Read More

GRAPHENE: Growing Giants

Released 12 6 2013 10 05 AM ESTSource Newsroom American Institute of Physics AIP more news from this source Contact Information Available for logged in reporters only Citations AIP AdvancesDec 7 2013 WASHINGTON D C ... - Read More

Researchers create nonlinear light-generating zero-index metamaterial

Light, Light
The Information Age will get a major upgrade with the arrival of quantum processors many times faster and more powerful than today's supercomputers For the benefits of this new Information Age 2.0 to be fully ... - Read More

Diagnostic imaging: New chip provides better all-round performance

Applications, Applications
Small optical devices are important for diagnostic imaging in the body they serve for example as optical probes in blood vessels or the gastrointestinal tract For accurate diagnosis such applications require a 360 degree view ... - Read More

Amplifying Our Vision of the Infinitely Small

Released 12 2 2013 10 00 AM ESTSource Newsroom Universite de Montreal more news from this source Dec 3 2013 Richard Martel and his research team at the Department of Chemistry of the Université de ... - Read More

New simulatable model displaying exotic quantum phenomena

Quantum, Quantum
It is fascinating how quantum mechanical behavior of particles at smallest scales can give rise to strange properties that can be observed in the classical world One example is the Fractional Quantum Hall Effect FQH ... - Read More

Pushing limits of light microscopy

Microscopy
A team of researchers from the IMP Vienna together with collaborators from the Vienna University of Technology established a new microscopy technique which greatly enhances resolution in the third dimension In a simple set up ... - Read More

Making a gem of a tiny crystal: Slowly cooled DNA transforms disordered nanoparticles into orderly crystal

Crystal
Nature builds flawless diamonds sapphires and other gems Now a Northwestern University research team is the first to build near perfect single crystals out of nanoparticles and DNA using the same structure favored by nature ... - Read More

Steering electrons along chemical bonds

Chemical bonds, Chemical bonds
Electron motions induced by a strong electric field are mapped in space and time with the help of femtosecond x ray pulses An x ray movie of the crystal lithium hydride shows that the electric ... - Read More

New technique controls dimensions of gold nanorods while manufacturing on a large scale

Nanorods
North Carolina State University researchers have developed a technique for efficiently producing nanoscale gold rods in large quantities while simultaneously controlling the dimensions of the nanorods and their optical properties The optical properties of gold ... - Read More

Solar cells utilize thermal radiation

Thermal radiation from the sun is largely lost on most silicon solar cells Up converters transform the infrared radiation into usable light however Researchers have now for the first time successfully adapted this effect for ... - Read More

Build-a-nanoparticle

Nanoparticles which range from 1 100 nanometers in size are roughly the same size as biomolecules such as proteins antibodies and membrane receptors Because of this size similarity nanoparticles can mimic biomolecules and therefore have ... - Read More

Diamond imperfections pave the way to technology gold

Diamond
From supersensitive detections of magnetic fields to quantum information processing the key to a number of highly promising advanced technologies may lie in one of the most common defects in diamonds Researchers at the Lawrence ... - Read More

A single-atom light switch: New switch is powerful tool for quantum information and quantum communication

Quantum, Quantum
With just a single atom light can be switched between two fibre optic cables at the Vienna University of Technology Such a switch enables quantum phenomena to be used for information and communication technology Fibre ... - Read More

Determining the quantum geometry of a crystal

Crystal
Physicists have succeeded in measuring geometric properties of energy bands in light crystals Geometrical phases occur in many places in nature One of the simplest examples is the Foucault pendulum a tall pendulum free to ... - Read More

Defective nanotubes turned into light emitters

Light, Light
UPV EHU University of the Basque Country researchers have developed and patented a new source of light emitter based on boron nitride nanotubes and suitable for developing high efficiency optoelectronic devices Scientists are usually after ... - Read More
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