Results 21 to 30 of about 9,673 (251)

Spin-induced angular momentum switching [PDF]

open access: yesOptics Letters, 2007
The original paper of the published version in Opt ...
Fernández Calvo, Gabriel   +1 more
openaire   +5 more sources

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

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   +1 more source

Mapping the transverse spin sum rule in position space

open access: yesPhysics Letters B
We 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
doaj   +1 more source

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   +1 more source

Effect of Twisting Phases on Linear–Circular Polarization and Spin–Orbital Angular Momentum Conversions in Tightly Focused Vector and Scalar Beams

open access: yesPhotonics, 2023
We theoretically investigated the effect of a new type of twisting phase on the polarization dynamics and spin–orbital angular momentum conversion of tightly focused scalar and vector beams.
Shu-Dan Wu   +2 more
doaj   +1 more source

Chiral phonon induced spin polarization

open access: yesPhysical Review Research, 2023
The current understanding of chirality suggests the existence of a connection between structure and angular momentum, including spin. This is particularly emphasized in the chiral induced spin selectivity effect, where chiral structures act as spin ...
J. Fransson
doaj   +1 more source

Dissipation of Spin Angular Momentum in Magnetic Switching [PDF]

open access: yesPhysical Review Letters, 2005
Applying one ultrashort magnetic field pulse, we observe up to 10 precessional switches of the magnetization direction in single crystalline Fe films of 10 and 15 atomic layers. We find that the rate at which angular momentum is dissipated in uniform large angle spin precession increases with time and film thickness, surpassing the intrinsic ...
Stamm, C.   +7 more
openaire   +3 more sources

Special Issue on Novel Insights into Orbital Angular Momentum Beams: From Fundamentals, Devices to Applications

open access: yesApplied Sciences, 2019
It is well-known now that angular momentum carried by elementary particles can be categorized as spin angular momentum (SAM) and orbital angular momentum (OAM) [...]
Yang Yue   +4 more
doaj   +1 more source

Gauge invariant Noether’s theorem and the proton spin crisis

open access: yesJournal of High Energy Physics, 2018
Due to proton spin crisis it is necessary to understand the gauge invariant definition of the spin and orbital angular momentum of the quark and gluon from first principle.
Gouranga C. Nayak
doaj   +1 more source

High-Order Orbital and Spin Hall Effects at the Tight Focus of Laser Beams

open access: yesPhotonics, 2022
In this paper, using a Richards–Wolf method, which describes the behavior of electromagnetic waves at the sharp focus, we show that high-order spin and orbital Hall effects take place at the focal plane of tightly focused laser beams. We reveal that four
Victor V. Kotlyar   +3 more
doaj   +1 more source

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