Spin angular momentum modulation via spin–orbit interaction in fractional orbital angular momentum beams [PDF]
NanophotonicsLight 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
Interaction of spin-orbit angular momentum in the tight focusing of structured light
Frontiers 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]
Nature 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
Photonic quasicrystal of spin angular momentum. [PDF]
Sci AdvQuasicrystals, characterized by long-range order without translational symmetry, have catalyzed transformative advances in various fields, including optics in terms of field quasicrystals. To our knowledge, we present the first demonstration of photonic quasicrystals formed by spin angular momentum, unveiling previously unidentified spin-orbit coupling
Lin M +5 more
europepmc +4 more sources
Spin and orbital angular momentum of coherent photons in a waveguide
Frontiers 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]
Nature CommunicationsRecent 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
A decomposition of light's spin angular momentum density. [PDF]
Light Sci ApplAbstractLight carries intrinsic spin angular momentum (SAM) when the electric or magnetic field vector rotates over time. A familiar vector equation calculates the direction of light’s SAM density using the right-hand rule with reference to the electric and magnetic polarisation ellipses.
Vernon AJ +4 more
europepmc +5 more sources
Dual electromagnetism: helicity, spin, momentum and angular momentum
New 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 +5 more sources
Optical Momentum, Spin, and Angular Momentum in Dispersive Media
Physical Review Letters, 2017 6 pages, 2 figures, to appear in Phys.
Konstantin Bliokh +2 more
exaly +6 more sources
Orbital angular momentum of spin electromagnetic wave
Results in PhysicsSpin 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 +3 more sources