How is it possible for the ISS to stay in orbit? Learn more about the science behind orbiting Earth and more in this NASA "STEMonstrations" video. Credit: NASA Johnson Space Center ...

Abstract: Optical orbital angular momentum (OAM) is studied these days in numerous fundamental and applicative scenarios, including for example space division-multiplex optical communication, quantum ...

Abstract: Electro-Magnetic (EM) Waves with different Orbital Angular Momentum (OAM) modes can be multiplexed to enjoy the high spectrum efficiency and transmission rate. However, the OAM waves can ...