In almost all situations, even in a vacuum, light cannot travel endlessly without dissipating. Pulses of light known as solitons that propagate along fibres for long distances without changing their shape or losing focus ...
Optics & Photonics
Jul 31, 2019
2
161
An international team of astronomers has witnessed a rare dynamic event foreshadowing the death of a red giant star for the first time – a discovery that reinforces predictions about our Sun's ultimate demise.
Astronomy
Jul 25, 2019
0
261
Imagine printing electronic devices using a simple inkjet printer—or even painting a solar panel onto the wall of a building.
Materials Science
Jul 16, 2019
1
1607
Researchers have used ultra-high-speed X-ray pulses to make a high-resolution "movie" of a molecule undergoing structural motions. The research, published in Nature Chemistry, reveals the dynamics of the processes in unprecedented ...
Materials Science
Jul 11, 2019
0
61
University of California San Diego researchers have calculations for how to create high-intensity twisted laser beams—a flavor of laser pulse the world has likely never seen. These researchers also have done the math on ...
Optics & Photonics
Jul 2, 2019
0
1
""Implantable optical devices that target neurons can be improved using miniature coils smaller than a grain of rice using optogenetic technology. Scientists can propagate pulses of light using the method to turn protein ...
Superfast data processing using light pulses instead of electricity has been created by scientists.
General Physics
May 15, 2019
15
2751
Imagine being able to shape a pulse of light in any conceivable manner—compressing it, stretching it, splitting it in two, changing its intensity or altering the direction of its electric field.
Optics & Photonics
May 2, 2019
0
446
When light interacts with a mirror which is moving towards it at a speed close to the speed of light, its wavelength is shifted into the extreme ultraviolet region of the spectrum. This effect was first predicted by Albert ...
Optics & Photonics
Apr 25, 2019
0
5
In quantum physics, a vacuum is not empty, but rather steeped in tiny fluctuations of the electromagnetic field. Until recently it was impossible to study those vacuum fluctuations directly. Researchers at ETH Zurich have ...
Quantum Physics
Apr 11, 2019
6
2469
