Results 1 to 10 of about 17,989 (291)

Spin angular momentum modulation via spin–orbit interaction in fractional orbital angular momentum beams [PDF]

open access: yesNanophotonics
Light exhibits both spin and orbital angular momentum (SAM and OAM). These two forms of angular momentum remain independent in paraxial fields, but become coupled in confined fields through spin–orbit interactions (SOI).
Chen Xusheng   +4 more
doaj   +5 more sources

Dual electromagnetism: helicity, spin, momentum and angular momentum [PDF]

open access: yesNew Journal of Physics, 2013
The dual symmetry between electric and magnetic fields is an important intrinsic property of Maxwell equations in free space. This symmetry underlies the conservation of optical helicity and, as we show here, is closely related to the separation of spin ...
Konstantin Y Bliokh   +2 more
doaj   +6 more sources

Orbital angular momentum of spin electromagnetic wave

open access: yesResults in Physics
Spin angular momentum (SAM) and Orbital angular momentum (OAM) are two distinct forms of electromagnetic angular momentum (AM). Generally, circularly-polarized (CP) wave is deemed as the typical form of spin wave, which carries SAM only.
Zhiwei Sun   +5 more
doaj   +4 more sources

Interaction of spin-orbit angular momentum in the tight focusing of structured light

open access: yesFrontiers in Physics, 2022
As an intrinsic property of light, angular momentum has always been an important research object of light field. In the past few years, the interactions between spin angular momentum and orbital angular momentum in tightly focused structured light have ...
Ji-Xiang Guo   +7 more
doaj   +3 more sources

Spin-orbit interaction of light induced by transverse spin angular momentum engineering [PDF]

open access: yesNature Communications, 2018
Harnessing both orbital and spin angular momentum in light fields enables various applications in bio-sensing and nano-photonics. Here, the authors create engineered spin-orbit coupling between orbital angular momentum and transverse spin angular ...
Zengkai Shao   +4 more
doaj   +2 more sources

A proposed measurement of optical orbital and spin angular momentum and its implications for photon angular momentum [PDF]

open access: yesPhysics Letters B, 2018
The expression for the total angular momentum carried by a laser optical vortex beam, splits, in the paraxial approximation, into two terms which seem to represent orbital and spin angular momentum respectively.
Elliot Leader
doaj   +2 more sources

Spin and orbital angular momentum of coherent photons in a waveguide

open access: yesFrontiers in Physics, 2023
Spin angular momentum of a photon corresponds to a polarisation degree of freedom of lights, and such that various polarisation properties are coming from macroscopic manifestation of quantum-mechanical properties of lights.
Shinichi Saito
doaj   +3 more sources

Revealing intrinsic 3D spin angular momentum of evanescent acoustic phonons on a single-crystal surface using ultrafast optoacoustics [PDF]

open access: yesNature Communications
Recent advances in spin angular momentum (SAM) of acoustic and elastic waves have deepened our understanding of phonons across classical and quantum regimes.
Yi He   +5 more
doaj   +2 more sources

Spin-constrained orbital-angular-momentum control in high-harmonic generation

open access: yesPhysical Review Research, 2019
The interplay between spin and orbital angular momentum in the up-conversion process allows us to control the macroscopic wave front of high harmonics by manipulating the microscopic polarizations of the driving field.
F. Kong   +10 more
doaj   +2 more sources

Spin-induced angular momentum switching [PDF]

open access: yesOptics Letters, 2007
When light is transmitted through optically inhomogeneous and anisotropic media the spatial distribution of light can be modified according to its input polarization state.
Fernández Calvo, Gabriel   +1 more
core   +8 more sources

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