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
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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
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
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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 +6 more sources
The angular momentum of vectorial non-paraxial fields and the role of radial charges in orbit-spin coupling [PDF]
EPJ Web of Conferences, 2020 Electromagnetic fields carry a linear and an angular momentum, the first being responsible for the existence of the radiation pressure and the second for the transfer of torque from electromagnetic radiation to matter.
El Gawhary Omar, Urbach Paul
doaj +1 more source
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 +1 more source
Spin-induced angular momentum switching [PDF]
Optics Letters, 2007 The original paper of the published version in Opt ...
Fernández Calvo, Gabriel +1 more
openaire +8 more sources
Spin–Orbital Transformation in a Tight Focus of an Optical Vortex with Circular Polarization
Applied Sciences, 2023 In the framework of the Richards–Wolf formalism, the spin–orbit conversion upon tight focusing of an optical vortex with circular polarization is studied.
Victor V. Kotlyar +4 more
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Spin current driven by ultrafast magnetization of FeRh
Nature Communications, 2023 Laser-induced ultrafast demagnetization is an important phenomenon that probes arguably the ultimate limits of the angular momentum dynamics in solid. Unfortunately, many aspects of the dynamics remain unclear except that the demagnetization transfers ...
Kyuhwe Kang +7 more
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