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News articles about "Light"

Atomic-scale investigations solve key puzzle of LED efficiency

Atomic
From the high resolution glow of flat screen televisions to light bulbs that last for years light emitting diodes LEDs continue to transform technology The celebrated efficiency and versatility of LEDs and other solid state ... - Read More

Spheres can form squares

Surface tension
Everybody who has tried to stack oranges in a box knows that a regular packing of spheres in a flat layer naturally leads to a hexagonal pattern where each sphere is surrounded by six neighbours ... - Read More

Optics: Statistics light the way

A revelation of how photoreceptive cells in the eye distinguish between different light sources could pave the way for a novel class of optical devices Millions of years of evolution have molded our eyes into ... - Read More

Detecting mirror molecules: New technique reliably tells left-handed from right-handed variant of a compound

Harvard physicists have developed a novel technique that can detect molecular variants in chemical mixtures greatly simplifying a process that is one of the most important though time consuming processes in analytical chemistry As described ... - Read More

New method for tailoring optical processors

Optical, Optical
Rice University scientists have unveiled a robust new method for arranging metal nanoparticles in geometric patterns that can act as optical processors that transform incoming light signals into output of a different color The breakthrough ... - Read More

Nanoantennas improve infrared sensing

Light, Light
A team of University of Pennsylvania engineers has used a pattern of nanoantennas to develop a new way of turning infrared light into mechanical action opening the door to more sensitive infrared cameras and more ... - Read More

World's smallest liquid droplets ever made in the lab, experiment suggests

Collisions
Physicists may have created the smallest drops of liquid ever made in the lab That possibility has been raised by the results of a recent experiment conducted by Vanderbilt physicist Julia Velkovska and her colleagues ... - Read More

Team wins Cubesat berth to gather Earth energy imbalance measurements

Earth, earth
A team of scientists has won a berth on a tiny satellite to explore one of NASA's most important frontiers in climate studies the imbalance in Earth's energy budget and the extent to which fast ... - Read More

Artificial forest for solar water-splitting: First fully integrated artificial photosynthesis nanosystem

Photosynthesis
In the wake of the sobering news that atmospheric carbon dioxide is now at its highest level in at least three million years an important advance in the race to develop carbon neutral renewable energy ... - Read More

New insights into how materials transfer heat could lead to improved electronics

U of T Engineering researchers working with colleagues from Carnegie Mellon University have published new insights into how materials transfer heat which could lead eventually to smaller more powerful electronic devices Integrated circuits and other ... - Read More

DNA-guided assembly yields novel ribbon-like nanostructures

Nanostructures
Scientists at the U S Department of Energy's Brookhaven National Laboratory have discovered that DNA linker strands coax nano sized rods to line up in way unlike any other spontaneous arrangement of rod shaped objects ... - Read More

Physicists light 'magnetic fire' to reveal energy's path

Light, Light
New York University physicists have uncovered how energy is released and dispersed in magnetic materials in a process akin to the spread of forest fires a finding that has the potential to deepen our understanding ... - Read More

First precise MEMS output measurement technique unveiled

Energy, Energy, Energy, energy, energy
The commercial application of MEMS or micro electro mechanical systems will receive a major boost today following the presentation of a brand new way to accurately measure the power requirements and outputs of all existing ... - Read More

Solar panels as inexpensive as paint?

cells, cells
Most Americans want the U S to place more emphasis on developing solar power recent polls suggest A major impediment however is the cost to manufacture install and maintain solar panels Simply put most people ... - Read More

Chemists demonstrate nanoscale alloys so bright they could have potential medical applications

Medical, Applications, Alloys
Alloys like bronze and steel have been transformational for centuries yielding top of the line machines necessary for industry As scientists move toward nanotechnology however the focus has shifted toward creating alloys at the nanometer ... - Read More

New uses for tiny carbon nanotubes: Adding ionic liquid to nanotube films could build smaller gadgets

The atom sized world of carbon nanotubes holds great promise for a future demanding smaller and faster electronic components Nanotubes are stronger than steel and smaller than any element of silicon based electronics the ubiquitous ... - Read More

Significant improvement in performance of solar-powered hydrogen generation

Hydrogen, Hydrogen, Hydrogen, Hydrogen, hydrogen
Using a powerful combination of microanalytic techniques that simultaneously image photoelectric current and chemical reaction rates across a surface on a micrometer scale researchers at the National Institute of Standards and Technology NIST have shed ... - Read More

Electronics comes to paper: Paper, being light and foldable, works well for electrically conducting structures

Light, Light
Paper being a light and foldable raw material is a cost efficient and simple means of generating electrically conducting structures Paper is becoming a high tech material Researchers at the Max Planck Institute of Colloids ... - Read More

Friction in the nano-world: Physicists discover a new kind of friction

Friction
Whether in vehicle transmissions hip replacements or tiny sensors for triggering airbags The respective components must slide against each other with minimum friction to prevent loss of energy and material wear Investigating the friction behavior ... - Read More

Better dyes for imaging technology

Light, Light
From microscopes to MRI scanners imaging technology is growing ever more vital in the world's hospitals whether for the diagnosis of illness or for research into new cures Imaging technology requires dyes or contrast agents ... - Read More
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