- News Home
17 April 2014 12:48 pm ,
Vol. 344 ,
Officials last week revealed that the U.S. contribution to ITER could cost $3.9 billion by 2034—roughly four times the...
An experimental hepatitis B drug that looked safe in animal trials tragically killed five of 15 patients in 1993. Now,...
Using the two high-quality genomes that exist for Neandertals and Denisovans, researchers find clues to gene activity...
A new report from the Intergovernmental Panel on Climate Change (IPCC) concludes that humanity has done little to slow...
Astronomers have discovered an Earth-sized planet in the habitable zone of a red dwarf—a star cooler than the sun—500...
Three years ago, Jennifer Francis of Rutgers University proposed that a warming Arctic was altering the behavior of the...
- 17 April 2014 12:48 pm , Vol. 344 , #6181
- About Us
ScienceShot: Antenna Array Lights Up
9 January 2013 5:05 pm
A "phased array" of 4096 micrometer-sized antennas beam out an orange and red display of the logo of the Massachusetts Institute of Technology (MIT) in Cambridge. It's by far the biggest such array pumping out visible light, besting the previous record of 16 antennas. Engineers have also long used arrays of radio and microwave antennas working in concert, which have a better ability than individual antennas to direct their signals, in radar and satellite communications. They have dreamed of making phased arrays with visible light, which is electromagnetic radiation with a far shorter wavelength. MIT researchers used standard silicon chip fabrication technology and managed to overcome the difficulties of avoiding imperfections. Down the road, such jumbo optical arrays could be used to improve a variety of applications, including three-dimensional holographic data storage and biomedical imaging, the researchers suggest.
See more ScienceShots.