Results 21 to 30 of about 17,989 (291)
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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Orbital angular momentum: origins, behavior and applications [PDF]
, 2011 As they travel through space, some light beams rotate. Such light beams have angular momentum. There are two particularly important ways in which a light beam can rotate: if every polarization vector rotates, the light has spin; if the phase structure ...
Padgett, M.J. +5 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
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Rotation of electromagnetic fields and the nature of optical angular momentum [PDF]
, 2010 The association of spin and orbital angular momenta of light with its polarization and helical phase fronts is now well established. The problems in linking this with electromagnetic theory, as expressed in Maxwell's equations, are rather less well known.
Stephen M. Barnetta B +2 more
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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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Spin Hall Effect of Double-Index Cylindrical Vector Beams in a Tight Focus
Micromachines, 2023 We investigate the spin angular momentum (SAM) of double-index cylindrical vector beams in tight focus. Such a set of beams is a generalization of the conventional cylindrical vector beams since the polarization order is different for the different ...
Alexey A. Kovalev, Victor V. Kotlyar
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Spin- and orbital-angular-momentum nonlinear optical selectivity of single-mode nanolasers
, 2023 Selective control of light is essential for optical science and technology with numerous applications. Nanophotonic waveguides and integrated couplers have been developed to achieve selective coupling and spatial control of an optical beam according to ...
Liang Liu (50022) +6 more
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Compton effect in terms of spintronic
Results in Physics, 2016 Compton effect with spin effect is studied. Although the incoming wave has been taken into account in the current loop model the final result is the same as before.
Ziya Saglam +2 more
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Mapping the transverse spin sum rule in position space
Physics Letters BWe discuss in detail the relativistic spatial distribution of transverse angular momentum, including both orbital and intrinsic spin contributions. Using the quantum phase-space formalism, we begin with the definition of the three-dimensional spatial ...
Cédric Lorcé +3 more
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Spin-Textured Neutron Beams with Orbital Angular Momentum
, 2022 We present an experimental protocol that generates spin-textured neutron beams with definite states of orbital angular momentum (OAM) via birefringent neutron spin-polarization devices known as magnetic Wollaston prisms.
Quan Le Thien (14417454) +3 more
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