Time, polarization, and wavelength multiplexing schemes have been used to satisfy the
growing need of transmission capacity. Using space as a new dimension for communication …

We present a comprehensive review on the geometric-phase based metasurfaces for orbital
angular momentum (OAM) generation and detection. These metasurfaces manipulate the …

Intelligent reflecting surfaces (IRSs), which are capable of adjusting radio propagation
conditions by controlling the phase shifts of the waves that im**e on the surface, have …

Sorting orbital angular momentum (OAM) and spin angular momentum (SAM) of photons is
crucial for optical communications, optical storage, and quantum information processing …

In wireless communication systems, a multibeam can be used to increase the number of
spatial channels by space-division multiplexing. Furthermore, the multimode is used to …

In this paper, an ultra-broadband and high-efficiency polarization conversion metasurface is
presented in the terahertz region. The metasureface is similar to a sandwiched structure …

The emerging orbital angular momentum (OAM) based wireless communication is expected
to be a high spectrum-efficiency communication paradigm to solve the growing transmission …

In this letter, a 2× 2 low-profile broadband triple-mode orbital angular momentum (OAM)
array antenna is presented, which can be dynamically controlled with electrostatic method …

In this paper, a novel method to generate multiple orbital angular momentum (OAM) vortex
beams is proposed using a 1-bit metasurface. Through carefully adjusting the phase shift of …

Orbital angular momentum (OAM) has received considerable attention regarding high‐
capacity communication owing to its spatial orthogonality. However, it is still challenging to …