Results 71 to 80 of about 274,936 (332)

Structured 3D linear space–time light bullets by nonlocal nanophotonics

open access: yesLight: Science & Applications, 2021
We propose the generation of 3D linear light bullets propagating in free space using a single passive nonlocal optical surface. The nonlocal nanophotonics can generate space–time coupling without any need for bulky pulse-shaping and spatial modulation ...
Cheng Guo   +3 more
doaj   +1 more source

Creation of Superconducting Vortices by Angular Momentum of Light [PDF]

open access: yesJournal of the Physical Society of Japan, 2020
4 pages, 4 ...
openaire   +2 more sources

Phase Change Material‐Driven Tunable Metasurface for Adaptive Terahertz Sensing and Communication in 6G Perceptive Networks

open access: yesAdvanced Functional Materials, EarlyView.
This study explores the benefits of metasurfaces made from functional materials, highlighting their ability to be adapted and improved for various high‐frequency applications, including communications and sensing. It first demonstrates the potential of these functional material‐based metasurfaces to advance the field of sub‐THz perceptive networks ...
Yat‐Sing To   +5 more
wiley   +1 more source

On-chip photodetection of angular momentums of vortex structured light

open access: yesNature Communications
Structured vortex light with orbital angular momentum (OAM) shows great promise for high-bandwidth optical communications, quantum information and computing, optical tweezers, microscopy, astronomy, among others. Generating, controlling, and detecting of
Mingjin Dai   +3 more
doaj   +1 more source

Negative Optical Torque

open access: yes, 2014
Maxwell noted that light carries angular momentum, and as such it can exert torques on material objects. This was subsequently proved by Beth in 1936.
Chan, C. T.   +5 more
core   +3 more sources

Reconfigurable Metamirrors Based on Compliant Mechanisms

open access: yesAdvanced Functional Materials, EarlyView.
Providing the basis for numerous practical applications, the reconfigurability of metadevices is of great importance. Through the integration of controlled mechanical deformation with chiral meta‐atoms, a compliant mechanism based metamirror is demonstrated for active control over the polarization of electromagnetic waves.
Galestan Mackertich‐Sengerdy   +3 more
wiley   +1 more source

Orbital chirality of light in few-mode step-index optical fibers

open access: yesAPL Photonics
A physical system is considered chiral when it can be distinguished from its mirror image, regardless of the applied translation and rotation. An electromagnetic wave can be chiral through its two essential forms of angular momenta: spin and orbital ...
Karolina Stefańska   +4 more
doaj   +1 more source

Photonic Angular Momentum in Intense Light–Matter Interactions

open access: yesPhotonics
Light contains both spin and orbital angular momentum. Despite contributing equally to the total photonic angular momentum, these components derive from quite different parts of the electromagnetic field profile, namely its polarization and spatial ...
Alex Schimmoller   +2 more
doaj   +1 more source

Iwamoto-Harada model of pre-equiluibrium cluster emission: Should we care about angular momentum?

open access: yesEPJ Web of Conferences, 2012
Whereas the emission of nucleons in low-energy nuclear reactions (say, below the pion threshold) can be nicely described using statistical models (compound nucleus plus pre-equilibrium), that of the complex particles, i.e.
Běták Emil
doaj   +1 more source

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