Enter orbital angular momentum: use the same wavelength, but ensure each wavelength channel carries multiple data streams, each encoded in different orbital angular momentum states.

Orbital angular momentum monopoles have been the subject of great theoretical interest as they offer major practical advantages for the emerging field of orbitronics, a potential energy-efficient ...

More information: Nian Zhang et al, Multiparameter encrypted orbital angular momentum multiplexed holography based on multiramp helicoconical beams, Advanced Photonics Nexus (2023).

Monopoles of orbital angular momentum (OAM) are a tantalizing prospect for orbitronics because OAM is uniform in all directions. This would mean that information flows could be generated in any ...

Visible, circularly polarised light can be transformed into light-carrying orbital angular momentum by a plasmonic metasurface. That is the finding of Ebrahim Karimi and co-workers at the ...

More information: Zhengsen Ruan et al, Flexible orbital angular momentum mode switching in multimode fibre using an optical neural network chip, Light: Advanced Manufacturing (2024).

In a paper published in National Science Review, the accurate control of the three-dimensional orientation of photonic orbital angular momentum is realized based on the collision between ...

The proposed diffractive deep neural network employs orbital angular momentum encoding and diffractive layers to process spatial information from handwritten digits, offering a robust and ...

To analyse the beam’s total angular momentum, the researchers rotated the orbital and spin components by different amounts: 180° and 90°, respectively. This enabled them to sort photons into two ...

A team of scientists has been able to reveal, for the first time, the dynamics of the orbital angular momentum of plasmons. The researchers used a combination of extremely high-quality single ...

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