The optical vortex plays an increasingly important role in optical information processing. As an information carrier, it improves the capacity of channels and offers an independent aspect for analysis—different from polarization, ...
Optics & Photonics
Aug 11, 2020
0
12
An optical vortex is identified as a phase singularity encircled with helical wavefront, and thanks to its unique properties, including carried orbital angular momentum (OAM) associated with donut-shaped profiles, it has ...
Optics & Photonics
May 19, 2020
0
5
Small magnetic objects, which have been used successfully in technological applications such as data storage, are showing promise in the biomedical field. Magnetic nanostructures have interesting properties that enhance novel ...
Bio & Medicine
Jan 28, 2020
0
191
Winter weather patterns in North America are dictated by changes to the polar vortex winds high in the atmosphere, but the most significant cold snaps are more likely influenced by the tropics, scientists have found.
Earth Sciences
Dec 27, 2019
1
2181
The shrinking of the clouds of the Great Red Spot on Jupiter has been well documented with photographic evidence from the last decade. However, researchers said there is no evidence the vortex itself has changed in size or ...
Space Exploration
Nov 25, 2019
0
676
Researchers have identified a weather event that caused an unusually extreme cold wave to hit Europe and Asia during the winter of 2018, which could help atmospheric scientists better predict similar events in the future, ...
Earth Sciences
Sep 18, 2019
0
219
A team of researchers at Laroche Laboratory, Université Paris Diderot and Université de Lyon has recently collected the first measurements of the resonance frequencies of a stable torus of fluid. The method they used to ...
A team of researchers affiliated with several institutions in Spain and the U.S. has announced that they have discovered a new property of light—self-torque. In their paper published in the journal Science, the group describes ...
Many of us as kids have played Poohsticks—throwing a twig into flowing water from a bridge or riverbank and watching it race downstream, but then losing the competition because your stick gets caught in the endless spin ...
General Physics
May 24, 2019
0
13
In Jules Verne's famous classic 20,000 Leagues Under the Sea, the iconic submarine Nautilus disappears into the Moskenstraumen, a massive whirlpool off the coast of Norway. In space, stars spiral around black holes; on Earth, ...
General Physics
May 7, 2019
2
862
