Optical fibres made of topological photonic crystals allow improved versatility and control across the modes and polarization of light they transmit. Compositionally, photonic crystals contain bandgaps to prevent the passage ...
The Internet of Things (IoT) allowing smart phones, home appliances, drones and self-driving vehicles to exchange digital information in real time requires a powerful security solution, as it can have a direct impact on user ...
General Physics
Nov 6, 2020
0
91
Polarization, the direction in which light vibrates, is invisible to the human eye. Yet, so much of our optical world relies on the control and manipulation of this hidden quality of light.
Optics & Photonics
Jun 4, 2020
0
250
A team of researchers from Russia and Greece reports a way to determine the origins and nature of quasar light by its polarization. The new approach is analogous to the way cinema glasses produce a 3-D image by feeding each ...
Astronomy
Mar 13, 2020
18
303
For the first time, researchers have used ultra-thin layers of 2-D structures known as metasurfaces to create holograms that can measure the polarization of light. The new metasurface holograms could be used to create very ...
Optics & Photonics
Sep 12, 2019
0
174
Researchers have developed a simple and stable device to generate the quantum states necessary for quantum key distribution. The device could make it more practical to develop a global data network that uses this very secure ...
Optics & Photonics
May 6, 2019
0
167
Researchers recently demonstrated the realization of an integrated microlaser based on a novel design that emits light in chiral modes, thus producing corkscrews of light. An object is said to be chiral if it can be distinguished ...
Optics & Photonics
Apr 3, 2019
0
671
Caltech engineers have created flat devices capable of manipulating light in ways that are very difficult or impossible to achieve with conventional optical components.
Optics & Photonics
Aug 31, 2015
0
91
Researchers have shown that hooded seals native to the Arctic Ocean and North Atlantic have eyes that are extremely sensitive to ultraviolet (UV) light, enabling them to spot polar bears that would usually be camouflaged ...
Plants & Animals
Jul 3, 2015
0
78
An experiment originally designed to test the visual abilities of octopuses and cuttlefish has given University of Bristol researchers an unprecedented insight into the human ability to perceive polarized light - the super ...
Plants & Animals
Jun 30, 2015
1
920
