Researchers at Duke University have discovered that a perfect absorber of electromagnetic waves they described in a 2017 paper can easily be tweaked into a sort of "time-reversed laser" known as a coherent perfect absorber ...
Optics & Photonics
Feb 15, 2019
2
832
Scientists from ITMO University have proposed a new technology for creating optical micro-waveguides using inkjet printing. Using this method, it is possible to quickly create waveguides with the necessary parameters without ...
Optics & Photonics
Nov 21, 2018
0
7
What happens when gold and silver just don't cut it anymore? You turn to metallic alloys, which are what Army researchers are using to develop new designer materials with a broad range of capabilities for our Soldiers.
Materials Science
Oct 10, 2018
0
6
An international research group has improved perovskite solar cell efficiency by using materials with better light absorption properties. For the first time, the researchers used silicon nanoparticles. Such nanoparticles ...
Nanomaterials
Sep 7, 2018
0
18
Physicists have managed to create an experimental structure with a strong toroidal dipole response of the electromagnetic field over a wide frequency range. This response is associated with a special configuration of electromagnetic ...
Optics & Photonics
Aug 6, 2018
0
9
The mid-infrared is an interesting part of the electromagnetic spectrum composed of colours that cannot be seen by the human eye. Many chemical molecules resonate when illuminated by infrared light. This infrared resonance ...
Optics & Photonics
May 14, 2018
0
3
For the first time scientists have created a way to model the interaction between light and twisted molecules, as these molecules transition from left- to right-handed versions, or vice versa. The transitional forms offer ...
Nanomaterials
May 3, 2018
0
89
A new method to sensitively measure the structure of molecules has been demonstrated by twisting laser light and aiming it at miniscule gold gratings to separate out wavelengths.
Optics & Photonics
Apr 5, 2018
0
175
Researchers at the Laboratory of Organic Electronics at Linköping University have developed a method and a material that generate an electrical impulse when the light fluctuates from sunshine to shade and vice versa. As ...
Condensed Matter
Mar 27, 2018
0
12
Researchers have developed a three-dimensional dynamic model of an interaction between light and nanoparticles. They used a supercomputer using graphics accelerators for calculations. The results show that silicon particles ...
Optics & Photonics
Mar 2, 2018
3
21
