Optical Momentum, Spin, and Angular Momentum in Dispersive Media
Physical Review Letters, 2017 6 pages, 2 figures, to appear in Phys.
Bliokh, Konstantin +2 more
openaire +7 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
doaj +1 more source
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
doaj +1 more source
Optomechanical measurement of photon spin angular momentum and optical torque in integrated photonic devices. [PDF]
Sci Adv, 2016 He L, Li H, Li M.
europepmc +2 more sources
Spin angular momentum of Gaussian beams with several polarization singularities
Компьютерная оптика, 2023 We study a paraxial vector Gaussian beam with several polarization singularities located on a circle. Such a beam is superposition of a cylindrically polarized Laguerre-Gaussian beam and a linearly polarized Gaussian beam.
A.A. Kovalev, V.V. Kotlyar
doaj +1 more source
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
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Conversion of a beam carrying fractionnal angular momentum in High-Harmonics Generation [PDF]
EPJ Web of Conferences, 2023 Exotic light fields combining non-trivial spin and angular momentum may not be eigenstates of either the spin or orbital angular momenta operators. For these fields, it is relevant to define a Generalized Angular Momentum operator of which they are ...
Guer Matthieu +7 more
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Pseudogauge freedom and the SO(3) algebra of spin operators
Physics Letters B, 2023 The energy-momentum and spin tensors for a given theory can be replaced by alternative expressions that obey the same conservation laws for the energy, linear momentum, as well as angular momentum but, however, differ by the local redistribution of such ...
Sourav Dey +3 more
doaj +1 more source
Torque of guided light on an atom near an optical nanofiber [PDF]
, 2019 We calculate analytically and numerically the axial orbital and spin torques of guided light on a two-level atom near an optical nanofiber. We show that the generation of these torques is governed by the angular momentum conservation law in the Minkowski
Busch, Thomas, Kien, Fam Le
core +3 more sources
Quantum field theory for spin operator of the photon
Physical Review Research, 2022 All elementary particles in nature can be classified as fermions with half-integer spin and bosons with integer spin. Within quantum electrodynamics (QED), even though the spin of the Dirac particle is well defined, there exist open questions on the ...
Li-Ping Yang +2 more
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