Cheaper and more efficient photonic devices, such as lasers, optical fibers, and other light sources may be possible with confined light that is unaffected by imperfections in the material that confines it, according to new ...
Optics & Photonics
Jun 4, 2018
0
84
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
A team of Columbia Engineering researchers, led by Applied Physics Assistant Professor Nanfang Yu, has invented a method to control light propagating in confined pathways, or waveguides, with high efficiency by using nano-antennas. ...
Nanophysics
Apr 17, 2017
1
1136
(Phys.org) —It was a big week for discovery as a Star Trek-like invisible shield was found thousands of miles above Earth—it's in the Van Allen radiation belt and appears to protect the planet below from "killer electrons." ...
Just as electronic circuits work with electrical charges, optical circuits process pulses of light, which gives them a distinct advantage in terms of speed. Optical technologies are therefore the object of intense research, ...
Optics & Photonics
Jun 16, 2014
0
0
(Phys.org) —Swinburne researchers have developed a high-quality continuous graphene oxide thin film that shows potential for ultrafast telecommunications.
Nanomaterials
May 9, 2014
1
0
At St. Paul's Cathedral in London, a section of the dome called the Whispering Gallery makes a whisper audible from the other side of the dome as a result of the way sound waves travel around the curved surface. Researchers ...
Optics & Photonics
Apr 6, 2014
2
0
Graphene—which consists of atom-thick sheets of carbon atoms arranged hexagonally—is the new wonder material: Flexible, lightweight and incredibly conductive electrically, it's also the strongest material known to man.
Optics & Photonics
Sep 16, 2013
0
0
Researchers at the University of California, San Diego report a breakthrough in technology that could pave the way for digital systems to record, store, edit and replay information in a dimension that goes beyond what we ...
Hi Tech & Innovation
Sep 7, 2013
3
0
There are several ways to "trap" a beam of light—usually with mirrors, other reflective surfaces, or high-tech materials such as photonic crystals. But now researchers at MIT have discovered a new method to trap light that ...
General Physics
Jul 10, 2013
13
0
