Researchers have developed a 3D-printed device that generates twisting light beams with orbital angular momentum (OAM), a form of rotational energy that can carry more data than regular beams.

This angular region of sensitivity, corresponding to a small spot on the sky, is called the antenna’s beam. The width of the beam depends on the diameter of the antenna and the wavelength of the radio ...

02 are the angular dimensions of the source as viewed ... This experiment shows beyond question that the photons in two coherent beams of light are correlated, and that this correlation is ...