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Phase singularities and optical vortices in photonics
AP Porfirev, AA Kuchmizhak, SO Gurbatov… - Phys. Usp, 2022 - ufn.ru
Since the second half of the 20th century, ideas to develop methods for the formation of
optical vortices (OVs) or OV beams–regions of circular motion of energy flow in an …
optical vortices (OVs) or OV beams–regions of circular motion of energy flow in an …
Orbital angular momentum optical communications enhanced by artificial intelligence
Angular momentum of light can be divided into spin angular momentum and orbital angular
momentum (OAM). Due to the theoretically unlimited orthogonal states, the physical …
momentum (OAM). Due to the theoretically unlimited orthogonal states, the physical …
3D printed sub-terahertz all-dielectric lens for arbitrary manipulation of quasi-nondiffractive orbital angular momentum waves
Terahertz (THz) vortex waves carrying orbital angular momentum (OAM) hold great potential
in dealing with the capacity crunch in wireless high-speed communication systems …
in dealing with the capacity crunch in wireless high-speed communication systems …
Distinguishing the topological charge of vortex beam via Fourier back plane imaging with chiral windmill structure
In recent years, research on the interaction between orbital angular momentum (OAM) of
light and matter has shown a continuous influx of investigations. OAM possesses distinct …
light and matter has shown a continuous influx of investigations. OAM possesses distinct …
Ultralow-power spiking neural networks for 1024-ary orbital angular momentum shift keying free-space optical communication
The theoretical unbounded orbital angular momentum (OAM) states can be exploited as
data bits in the OAM shift keying (OAM-SK) free-space optical (FSO) communications. In …
data bits in the OAM shift keying (OAM-SK) free-space optical (FSO) communications. In …
Examining second-harmonic generation of high-order Laguerre–Gaussian modes through a single cylindrical lens
We experimentally investigate the second-harmonic generation of a high-order Laguerre–
Gaussian (LG) mode under the quasi-phase-matching (QPM) configuration. First, we …
Gaussian (LG) mode under the quasi-phase-matching (QPM) configuration. First, we …
Directly generating orbital angular momentum in second-harmonic waves with a spirally poled nonlinear photonic crystal
Based on nonlinear holography, we propose a 2D spirally poled LiNbO 3 nonlinear photonic
crystal that generates orbital angular momentum (OAM) states of second-harmonic (SH) …
crystal that generates orbital angular momentum (OAM) states of second-harmonic (SH) …
On-chip orbital angular momentum sorter for demultiplexing based on arc-shaped waveguide grating
An on-chip orbital angular momentum (OAM) sorter based on the arc-shaped waveguide
grating coupler (AWGC) structure is proposed and numerically analyzed. Coupling …
grating coupler (AWGC) structure is proposed and numerically analyzed. Coupling …
Broadband variable meta-axicons based on nano-aperture arrays in a metallic film
Metasurfaces are two-dimensional metamaterials composed of a carefully designed series
of subwavelength meta-atom (antenna or aperture) arrays. These surfaces can manipulate …
of subwavelength meta-atom (antenna or aperture) arrays. These surfaces can manipulate …
Optical orbital angular momentum read-out using a self-assembled plasmonic nanowire
DK Sharma, V Kumar, AB Vasista, D Paul… - ACS …, 2018 - ACS Publications
Orbital angular momentum (OAM) has emerged as an important parameter to store, control,
and transport information using light. Recognizing optical beams that carry OAM at the …
and transport information using light. Recognizing optical beams that carry OAM at the …