Optical vortex beams, characterized by their helical phase fronts and orbital angular momentum (OAM), are pivotal in applications such as high-capacity communication, optical manipulation, and quantum ...

Step inside the strange world of a superfluid, a liquid that can flow endlessly without friction, defying the common-sense ...

The high-energy radiation that carries orbit angular momentum has become an extremely important tool to investigate the angular momentum-related physics in the microworld. But the generation and ...

An optical illusion is a visual phenomenon where our perception of an image differs from objective reality. This image is perceived as a visual impression of a swirling tunnel or vortex effect. These ...