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News articles about "Optical"

Laser the size of a virus particle: Miniature laser operates at room temperature and defies the diffraction limit of light

Laser, Laser
A Northwestern University research team has found a way to manufacture single laser devices that are the size of a virus particle and that operate at room temperature These plasmonic nanolasers could be readily integrated ... - Read More

Engineers enable 'bulk' silicon to emit visible light for the first time

Time, Silicon
Electronic computing speeds are brushing up against limits imposed by the laws of physics Photonic computing where photons replace comparatively slow electrons in representing information could surpass those limitations but the components of such computers ... - Read More

Trees used to create recyclable, efficient solar cell

cell, cell
Solar cells are just like leaves capturing the sunlight and turning it into energy It's fitting that they can now be made partially from trees Share This See Also Solar Energy Petroleum Materials Science Energy ... - Read More

Hydrogen fuel? Thin films of nickel and iron oxides yield efficient solar water-splitting catalyst

Iron oxides, Yield, Catalyst, Fuel, Thin films, Films
University of Oregon chemists say that ultra thin films of nickel and iron oxides made through a solution synthesis process are promising catalysts to combine with semiconductors to make devices that capture sunlight and convert ... - Read More

Quantum computers coming soon? Metamaterials used to observe giant photonic spin Hall effect

Hall Effect
Researchers with the U S Department of Energy DOE 's Lawrence Berkeley National Laboratory Berkeley Lab have once again demonstrated the incredible capabilities of metamaterials artificial nanoconstructs whose optical properties arise from their physical structure ... - Read More

Negative-charge carrying molecular structures created

Molecular, molecular
University of Oregon chemists have synthesized organic molecular structures that move both positive and negative electrical charges a highly desired but often difficult combination to achieve in current efforts to create highly flexible electronic devices ... - Read More

Intense terahertz pulses cause DNA damage but also induce DNA repair

Terahertz THz radiation a slice of the electromagnetic spectrum that occupies the middle ground between microwaves and infrared light is rapidly finding important uses in medical diagnostics security and scientific research As scientists and engineers ... - Read More

'Metasurfaces' to usher in new optical technologies

Optical, Optical
New optical technologies using metasurfaces capable of the ultra efficient control of light are nearing commercialization with potential applications including advanced solar cells computers telecommunications sensors and microscopes Share This See Also Optics Materials Science ... - Read More

Plasmonics: Model makes light work of nanocircuits

As computer manufacturers cram ever more processing power onto tiny chips they face a growing problem The connections between electronic components that measure just a few billionths of a meter across allow electrons to leak ... - Read More

Quantum magnets moving along: Scientists observes coherent propagation of a single spin impurity in a chain of ultracold atoms

Magnets
Many discoveries in physics came as a big surprise for example the phenomenon that some materials loose almost all their electrical resistance at low temperatures or that others become superconductors at unexpectedly high temperatures In ... - Read More

High-resolution endoscope as thin as a human hair

Light, Light
Engineers at Stanford have developed a prototype single fiber endoscope that improves the resolution of these much sought after instruments fourfold over existing designs The advance could lead to an era of needle thin minimally ... - Read More

Detecting cesium with naked eyes

Probe, Fluorescence
Micrometer level naked eye detection of cesium ions a major source of contamination in the vicinity of radioactive leaks is demonstrated in a material developed by researchers in Japan Share This See Also Weapons Technology ... - Read More

Device may lead to quicker, more efficient diagnostics

Diagnostics
A twist on thin film technology may provide a way to optically detect and analyze multiple substances simultaneously leading to quicker diagnostics in such industries as health care and homeland security according to Penn State ... - Read More

High-performance, organic nanowire phototransistors opens the way for optoelectronic device miniaturization

Organic, organic, Organic
A research team from Ulsan National Institute of Science and Technology UNIST South Korea have developed high performance organic phototransistors OPTs based on single crystalline n channel organic nanowires The research was published recently in ... - Read More

Killing cancer cells with acid reflux

Acid, cancer
A University of Central Florida chemist has come up with a unique way to kill certain cancer cells give them acid reflux Share This See Also Cancer Colon Cancer Brain Tumor Optics Chemistry Biochemistry Embryonic ... - Read More

Volcanic aerosols, not pollutants, tamped down recent Earth warming

Pollutants
A team led by the University of Colorado Boulder looking for clues about why Earth did not warm as much as scientists expected between 2000 and 2010 now thinks the culprits are hiding in plain ... - Read More

Turbulence in a crystal

Crystal
When a crystal is hit by an intense ultrashort light pulse its atomic structure is set in motion A team of scientists from the Max Planck Institute of Quantum Optics MPQ the Technischen Universität München ... - Read More

Faster, more efficient technique for creating high-density ceramics

A researcher from North Carolina State University has developed a technique for creating high density ceramic materials that requires far lower temperatures than current techniques and takes less than a second as opposed to hours ... - Read More

Light-emitting bioprobe fits in a single cell

cell, Light, Light, cell
If engineers at Stanford have their way biological research may soon be transformed by a new class of light emitting probes small enough to be injected into individual cells without harm to the host Welcome ... - Read More

Photonics: Deconstructed nanosensors light the way forward

A flexible design approach for nanosensors that overcomes practicality and reliability issues is now available Share This See Also Optics Materials Science Nanotechnology Biochemistry Nature of Water Chemistry Optics Spectroscopy Quantum dot Doppler effect Metal ... - Read More
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