Results 21 to 30 of about 1,464 (216)
High-dimensional orbital angular momentum multiplexing nonlinear holography [PDF]
Advanced Photonics, 2021 Nonlinear holography has been identified as a vital platform for optical multiplexing holography because of the appearance of new optical frequencies. However, due to nonlinear wave coupling in nonlinear optical processes, the nonlinear harmonic field is coupled with the input field, laying a fundamental barrier to independent control of the ...
Xinyuan Fang +6 more
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Orbital Angular Momentum Multiplexing in Space–Time Thermoacoustic Metasurfaces
Advanced Materials, 2022 AbstractMultiplexing technology with increased information capacity plays a crucial role in the realm of acoustic communication. Different quantities of sound waves, including time, frequency, amplitude, phase, and orbital angular momentum (OAM), have been independently introduced as the physical multiplexing approach to allow for enhanced ...
Jia, Yurou +8 more
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Results in Physics, 2023 Optical orbital angular momentum (OAM) holography provides a critical method for holographic information storage systems and experimentally demonstrates the feasibility of holographic multiplexation.
Nian Zhang +3 more
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Electrically activated spin-controlled orbital angular momentum multiplexer [PDF]
Applied Physics Letters, 2018 We present and test the integration of a static orbital angular momentum mode multiplexer with a dynamical geometric-phase optical element, enabling on-demand spin-controlled angular momentum multiplexing. A diffractive optic multiplexer fabricated by 3D high-resolution electron beam lithography performs a conformal mapping for the conversion from ...
Ruffato, Gianluca +3 more
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Shrinking multiplexed orbital angular momentum to the nanoscale [PDF]
Light: Science & Applications, 2021 AbstractOrbital angular momentum interactions at the nanoscale have remained elusive because the phase structure becomes unresolved. Now researchers have shown how to overcome this with tightly focused beams, demonstrating a record-high six-dimensional encoding in an ultra-dense nanoscale volume.
He, C, Shen, Y, Forbes, A, Booth, MJ
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Engineering Entangled Photons for Transmission in Ring-Core Optical Fibers
Frontiers in Physics, 2021 The capacity of optical communication channels can be increased by space division multiplexing in structured optical fibers. Radial core optical fibers allows for the propagation of twisted light–eigenmodes of orbital angular momentum, which have ...
G. Cañas +7 more
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1-Pbps orbital angular momentum fibre-optic transmission
Light: Science & Applications, 2022 A 1-Pbps orbital-angular-momentum fibre-optic transmission system that combines space-division multiplexing and wavelength-division multiplexing in a 34 km 7-core ring-core fibre is demonstrated utilizing low-complexity 4 × 4 MIMO equalization.
Junyi Liu +17 more
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Super-resolution orbital angular momentum holography
Nature Communications, 2023 The resolution of orbital angular momentum holography is limited by a fundamental sampling criterion. Here, the authors break the resolution barrier by temporal multiplexing of binary holograms and enhance the resolution and capacity by several times.
Zijian Shi +5 more
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Quantum multiplexing with the orbital angular momentum of light [PDF]
Physical Review A, 2008 The orbital angular momentum, OAM, of photons offers a suitable support to carry the quantum data of multiple users. We present two novel optical setups that send the information of n quantum communication parties through the same free-space optical link.
Garcia-Escartin, Juan Carlos +1 more
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Angular momentum holography via a minimalist metasurface for optical nested encryption
Light: Science & Applications, 2023 Metasurfaces can perform high-performance multi-functional integration by manipulating the abundant physical dimensions of light, demonstrating great potential in high-capacity information technologies. The orbital angular momentum (OAM) and spin angular
Hui Yang +9 more
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