A new laser based on a swirling vortex of light has been created by physicists in the US. The “topological-defect laser” could be a useful addition to lab-on-a-chip devices, where it could manipulate ...

Smoke rings are being seen in a new light. Doughnut-shaped structures called vortex rings are sometimes seen swirling through fluids. Smokers can form them with their mouths, volcanoes can spit them ...

Light that twists as it travels and materials whose internal order is knotted like a pretzel are starting to collide in the ...

Recently, the Laboratory of Micro and Nano Engineering, School of Engineering Science, University of Science and Technology of China (USTC) has made important progress in the field of structural ...

Researchers said these optical vortices could help overcome bandwidth limitations in fibre optic communication, or enhance the optical tweezers that can manipulate atoms. Researchers have created an ...

As a new degree of freedom, the orbital angular momentum of electromagnetic waves exceeds the traditional frequency, phase, and amplitude, and is expected to promote the infinite expansion of channel ...

It is a radical breakthrough in communication that could change the ways computer chips work. Experts have revealed a 'vortex laser' that can encode information into its twists. This allows it to ...