Results 51 to 60 of about 98,442 (290)

Orbital angular momentum conservation in Brillouin light scattering within a ferromagnetic sphere

New Journal of Physics, 2018
Magnetostatic modes supported by a ferromagnetic sphere have been known as the Walker modes, each of which possesses an orbital angular momentum as well as a spin angular momentum along a static magnetic field.
A Osada, A Gloppe, Y Nakamura, K Usami
doaj   +1 more source

Engineering Entangled Photons for Transmission in Ring-Core Optical Fibers

Frontiers in Physics, 2021
The capacity of optical communication channels can be increased by space division multiplexing in structured optical fibers. Radial core optical fibers allows for the propagation of twisted light–eigenmodes of orbital angular momentum, which have ...
G. Cañas, E. S. Gómez, E. S. Gómez, E. Baradit, G. Lima, G. Lima, S. P. Walborn, S. P. Walborn   +7 more
doaj   +1 more source

Implications of Color Gauge Symmetry For Nucleon Spin Structure [PDF]

, 1998
We study the chromodynamical gauge symmetry in relation to the internal spin structure of the nucleon. We show that 1) even in the helicity eigenstates the gauge-dependent spin and orbital angular momentum operators do not have gauge-independent matrix ...
A. Bassetto, A. Manohar, G. Altarelli, H. Y. Cheng, I. Balitsky, P. G. Ratcliffe, P. Hoodbhoy, P. Hägler, Pervez Hoodbhoy, R. L. Jaffe, R. P. Feynman, S. V. Bashinskii, V. Barone, Wei Lu, X. Ji, X. Ji, X. Ji, Xiangdong Ji   +17 more
core   +3 more sources

NanoMOF‐Based Multilevel Anti‐Counterfeiting by a Combination of Visible and Invisible Photoluminescence and Conductivity

Advanced Functional Materials, EarlyView.
This study presents novel anti‐counterfeiting tags with multilevel security features that utilize additional disguise features. They combine luminescent nanosized Ln‐MOFs with conductive polymers to multifunctional mixed‐matrix membranes and powder composites. The materials exhibit visible/NIR emission and matrix‐based conductivity even as black bodies.
Moritz Maxeiner, Ruben Maile, Murat Cuvalli, Andreas Wolf, Ayisha Komal, Robert Oestreich, Christoph Janiak, Karl Mandel, Alexander Knebel, Klaus Müller‐Buschbaum   +9 more
wiley   +1 more source

The Hall Effects of Vortex Light in Optical Materials

Advanced Photonics Research
For light, its spin can be independent of the spatial distribution of its wave function, whereas its intrinsic orbital angular momentum does depend on this distribution.
Wei‐Si Qiu, Li‐Li Yang, Dan‐Dan Lian, Peng‐Ming Zhang   +3 more
doaj   +1 more source

Imaging of Biphoton States: Fundamentals and Applications

Advanced Functional Materials, EarlyView.
Quantum states of two photons exhibit a rich polarization and spatial structure, which provides a fundamental resource of strongly correlated and entangled states. This review analyzes the physics of these intriguing properties and explores the various techniques and technologies available to measure them, including the state of the art of their ...
Alessio D'Errico, Ebrahim Karimi
wiley   +1 more source

Orbital Angular Momentum Parton Distributions in Light-Front Dynamics

, 2000
We study the quark angular momentum distribution in the nucleon within a light-front covariant quark model. Special emphasis is put into the orbital angular momentum: a quantity which is very sensitive to the relativistic treatment of the spin in a light-
A. Airapetian, A. Harindranath, A. Mair, A. Mair, B. D. Keister, B.-Q. Ma, B.-Q. Ma, B.-Q. Ma, D. Adams, D. Adams, D. Adams, F. Cano, F. Coester, G. Altarelli, G. Altarelli, I. I. Balitsky, J. Ashman, J. Ashman, J. Carbonell, L. M. Sehgal, M. Beyer, M. Ferraris, M. Ropele, M. Traini, M. Traini, M. Traini, M. Traini, M. Wakamatsu, N. Isgur, N. Isgur, N. Isgur, O. Martin, P. Faccioli, P. Faccioli, P. G. Ratcliffe, P. Hoodbhoy, P. Hoodbhoy, P. Hägler, R. D. Carlitz, R. L. Jaffe, S. J. Brodsky, S. J. Brodsky, S. Scopetta, S. Scopetta, S. Scopetta, S. Scopetta, S. Scopetta, S. V. Bashinsky, V. Barone, X. Ji, X. Ji   +50 more
core   +1 more source

Light-Front Holography: A First Approximation to QCD [PDF]

, 2008
Starting from the Hamiltonian equation of motion in QCD, we identify an invariant light-front coordinate $\zeta$ which allows the separation of the dynamics of quark and gluon binding from the kinematics of constituent spin and internal orbital angular ...
Guy F. de Téramond, J. M. Maldacena, L. D. Landau, Stanley J. Brodsky   +3 more
core   +2 more sources

Time-division multiplexing of the orbital angular momentum of light [PDF]

Optics Letters, 2012
We present an optical setup for generating a sequence of light pulses in which the orbital angular momentum (OAM) degree of freedom is correlated with the temporal one. The setup is based on a single $q$-plate within a ring optical resonator. By this approach, we demonstrate the generation of a train of pulses carrying increasing values of OAM, or ...
KARIMI, ebrahim, MARRUCCI, LORENZO, DE LISIO, CORRADO, SANTAMATO, ENRICO   +3 more
openaire   +5 more sources

Indirect Band Edge and Chain‐Locked Linear Dichroism in the Quasi‐1D Van der Waals Antiferromagnet AgCrP2S6

Advanced Functional Materials, EarlyView.
AgCrP2S6 reveals a momentum‐indirect band edge (≈1.35 eV) and chain‐locked linear dichroism: the first direct transitions emerge at 1.6–1.8 eV for E||a. Resonant Raman and photoemission corroborate this assignment. In ACPS/graphene heterostructures, photocurrent turns on above ≈1.5 eV and follows the same polarization selection rules (anisotropy ≈0.53),
Oleksandr Volochanskyi, Sabrina Juergensen, Václav Valeš, Kumari Surbhi, Martin Mergl, Kseniia Mosina, Zdeněk Sofer, Jan Honolka, Patryk Kusch, Martin Kalbáč   +9 more
wiley   +1 more source