Researchers at Duke University have built the first metal-free, dynamically tunable metamaterial for controlling electromagnetic waves. The approach could form the basis for technologies ranging from improved security scanners ...
Optics & Photonics
May 1, 2018
0
538
Illinois researchers have demonstrated that sound waves can be used to produce ultraminiature optical diodes that are tiny enough to fit onto a computer chip. These devices, called optical isolators, may help solve major ...
Optics & Photonics
Jan 22, 2018
0
210
When scientists recorded a rippling in space-time, followed within two seconds by an associated burst of light observed by dozens of telescopes around the globe, they had witnessed, for the first time, the explosive collision ...
General Physics
Dec 18, 2017
10
760
Brown University researchers have demonstrated for the first time a method of substantially changing the spatial coherence of light.
Optics & Photonics
Oct 18, 2017
2
614
In 2015, researchers at the Harvard John A. Paulson School of Engineering and Applied Sciences (SEAS) developed the first on-chip metamaterial with a refractive index of zero, meaning that the phase of light could be stretched ...
Optics & Photonics
Oct 9, 2017
8
2664
In an arranged marriage of optics and mechanics, physicists have created microscopic structural beams that have a variety of powerful uses when light strikes them. Able to operate in ordinary, room-temperature environments, ...
Optics & Photonics
Jun 22, 2017
0
669
A research team led by UCLA electrical engineers has developed a new technique to control the polarization state of a laser that could lead to a new class of powerful, high-quality lasers for use in medical imaging, chemical ...
Optics & Photonics
Apr 20, 2017
0
1042
Electromagnetic pulses lasting one millionth of a millionth of a second may hold the key to advances in medical imaging, communications and drug development. But the pulses, called terahertz waves, have long required elaborate ...
Optics & Photonics
Feb 9, 2017
1
4925
Research Triangle engineers have developed a simple, energy-efficient way to create three-dimensional acoustic holograms. The technique could revolutionize applications ranging from home stereo systems to medical ultrasound ...
General Physics
Oct 14, 2016
2
1375
From hard to malleable, from transparent to opaque, from channeling electricity to blocking it: Materials come in all types. A number of their intriguing properties originate in the way a material's electrons "dance" with ...
General Physics
Sep 22, 2016
0
959
