Results 61 to 70 of about 98,442 (290)

Dimensionality-enhanced mid-infrared light vortex detection based on multilayer graphene

open access: yesLight: Science & Applications
Recent conceptual demonstrations of direct photocurrent readout of light vortices have enabled the development of light orbital angular momentum-sensitive focal plane arrays and on-chip integration of orbital angular momentum detection.
Dehong Yang   +7 more
doaj   +1 more source

Efficient separation of the orbital angular momentum eigenstates of light [PDF]

open access: yesNature Communications, 2013
Orbital angular momentum (OAM) of light is an attractive degree of freedom for funda- mentals studies in quantum mechanics. In addition, the discrete unbounded state-space of OAM has been used to enhance classical and quantum communications. Unambiguous mea- surement of OAM is a key part of all such experiments.
Mirhosseini, Mohammad   +3 more
openaire   +4 more sources

2D Magnetic and Topological Quantum Materials and Devices for Ultralow Power Spintronics

open access: yesAdvanced Functional Materials, EarlyView.
2D magnets and topological quantum materials enable ultralow‐power spintronics by combining robust magnetic order with symmetry‐protected, Berry‐curvature‐driven transport. Fundamentals of 2D anisotropy and spin‐orbit‐coupling induced band inversion are linked to scalable growth and vdW stacking.
Brahmdutta Dixit   +5 more
wiley   +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

Experimental demonstration of cylindrical vector spatiotemporal optical vortex

open access: yesNanophotonics, 2021
We experimentally generate cylindrically polarized wavepackets with transverse orbital angular momentum, demonstrating the coexistence of spatiotemporal optical vortex with spatial polarization singularity.
Chen Jian   +3 more
doaj   +1 more source

Management of the orbital angular momentum of vortex beams in a quadratic nonlinear interaction

open access: yes, 2011
Light intensity control of the orbital angular momentum of the fundamental beam in a quadratic nonlinear process is theoretically and numerically presented.
Bertolotti, Mario   +3 more
core   +1 more source

Spin-to-Orbital Angular Momentum Conversion in Semiconductor Microcavities [PDF]

open access: yes, 2011
We experimentally demonstrate a technique for the generation of optical beams carrying orbital angular momentum using a planar semiconductor microcavity.
A. V. Kavokin   +12 more
core   +2 more sources

Laser‐Assisted Processing and Modification of Bioactive Glasses: A Review

open access: yesAdvanced Healthcare Materials, EarlyView.
Laser technologies provide powerful tools to process and transform bioactive glasses for advanced biomedical applications. This review discusses laser‐matter interaction mechanisms, laser surface engineering, and laser‐assisted fabrication of scaffolds and nanofibers.
Antonio Riveiro   +8 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

The difficulty of measuring orbital angular momentum

open access: yesAtti della Accademia Peloritana dei Pericolanti : Classe di Scienze Fisiche, Matematiche e Naturali, 2011
Light can carry angular momentum as well as energy and momentum; the transfer of this angular momentum to an object results in an optical torque. The development of a rotational analogue to the force measurement capability of optical tweezers is hampered
D. Preece   +4 more
doaj   +1 more source

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