Research demonstrates method to alter coherence of light
Brown University researchers have demonstrated for the first time a method of substantially changing the spatial coherence of light.
Oct 18, 2017
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Absorbing electromagnetic energy while avoiding the heat
Electrical engineers at Duke University have created the world's first electromagnetic metamaterial made without any metal. The device's ability to absorb electromagnetic energy without heating up has direct applications ...
A guide to understanding new light-bulb terms, LEDs and more
Anyone who has stood in confusion in the light-bulb aisle (and that's most of us) knows that technology and the push to save energy are continuing to flip the script on home lighting options.
Optimizing lighting for better learning
The intensity of artificial lighting has been shown to have a range of effects on our mood and our ability to concentrate. New research explores the color of lighting and its effect on our cognitive performance. The study, ...
How photonics can reshape the spectrum of light, and rehabilitate Edison's light bulb along the way
Traditional light bulbs, thought to be well on their way to oblivion, may receive a reprieve thanks to a technological breakthrough.
Researchers create light emitting diodes from food and beverage waste
Most Christmas lights, DVD players, televisions and flashlights have one thing in common: they're made with light emitting diodes (LEDs). LEDs are widely used for a variety of applications and have been a popular, more efficient ...
Review: New light bulbs offer alternative to LEDs and CFLs
For consumers who are still bemoaning the phaseout of incandescent light bulbs, hate the harsh CFLs and can't figure out LEDs, another option may be on the horizon - a new kind of bulb is slated to hit store shelves this ...
New technology can expand LED lighting, cutting energy use and greenhouse gas emissions
Highly efficient, light-emitting diodes (LEDs) could slash the world's electricity consumption. They are already sold in stores, but more widespread adoption of the technology has been hindered by high costs due to limited ...
Graphene gets bright: World's thinnest lightbulb developed
Led by Young Duck Kim, a postdoctoral research scientist in James Hone's group at Columbia Engineering, a team of scientists from Columbia, Seoul National University (SNU), and Korea Research Institute of Standards and Science ...
Researchers develop low-cost, 'tunable' window tintings
Technology developed by the University of Cincinnati and industry partners can do something that neither blinds nor existing smart windows can do. This patent-pending research, supported by the National Science Foundation, ...
