Results 121 to 130 of about 274,936 (332)

Structured light transformations and orbital angular momentum control in a three-coil optical snake [PDF]

, 2022
C.N. Alexeyev, S.S. Aliyeva, E.V. Barshak, B. P. Lapin, M.A. Yavorsrky   +4 more
openalex   +1 more source

Cold Quad‐Modal Nanocomplex for Precise and Quantitative In Vivo Stem Cell Tracking

Advanced Functional Materials, EarlyView.
Multimodal albumin–bismuth sulfide–superparamagnetic iron oxide (ABS) nanocomplexes are developed for stem cell tracking across four different imaging modalities: MRI, MPI, MSOT, and CT. Combining its flexibility with high sensitivity, this quad‐modal imaging agent enables a robust quantification of ABS‐labeled stem cells in vivo.
Ali Shakeri‐Zadeh, Chao Wang, Shreyas Kuddannaya, Saleem Yousf, Jeff W. M. Bulte   +4 more
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

Coherent Control of Nitrogen Nuclear Spins via the VB−${\rm V}_B^-$‐Center in Hexagonal Boron Nitride

Advanced Functional Materials, EarlyView.
This study demonstrates coherent control of 15N nuclear spins coupled to VB−${\text{V}}_{\text{B}}^{-}$ centers in isotope‐enriched hexagonal boron nitride. Selective addressing via spin‐state mixing enables Rabi driving, quantum gates, and coherence times exceeding 10 μs$\umu{\rm s}$.
Adalbert Tibiássy, Charlie J. Patrickson, Thomas Poirier, James H. Edgar, Bruno Lopez‐Rodriguez, Viktor Ivády, Isaac J. Luxmoore   +6 more
wiley   +1 more source

An Observational Estimate for the Mean Secular Evolution Rate in Spiral Galaxies

, 2010
We have observationally quantified the effect of gravitational torques on stars in disk galaxies due to the stellar distribution itself and explored whether these torques are efficient at transporting angular momentum within a Hubble Time.
Abazajian, Athanassoula, Barazza, Barden, Bell, Berentzen, Bertin, Bertin, Binney, Bosma, Bosma, Bournaud, Bournaud, Bruzual, Buta, Cayatte, Courteau, Courteau, Courteau, Curir, De Vaucouleurs, Debattista, Debattista, Dutton, Elmegreen, Foyle, Frei, Gnedin, Governato, Haan, Hans-Walter Rix, Hunt, Jarrett, Jogee, Kelly Foyle, Knapen, Knapen, Kormendy, Kranz, Lin, Lynden-Bell, Marinova, Merrifield, Navarro, Navarro, Navarro, Pasha, Pasha, Peng, Pérez, Rix, Roškar, Sancisi, Schneider, Sellwood, Sellwood, Sellwood, Sheth, Sofue, Somerville, Sparke, Springel, Springel, Stefano Zibetti, Tamburro, Thacker, Tully, Valenzuela, Van Der Kruit, Verdes-Montenegro, York, Zhang, Zhang, Zhang, Zibetti   +74 more
core   +1 more source

Universal Electronic‐Structure Relationship Governing Intrinsic Magnetic Properties in Permanent Magnets

Advanced Functional Materials, EarlyView.
Permanent magnets derive their extraordinary strength from deep, universal electronic‐structure principles that control magnetization, anisotropy, and intrinsic performance. This work uncovers those governing rules, examines modern modeling and AI‐driven discovery methods, identifies critical bottlenecks, and reveals electronic fingerprints shared ...
Prashant Singh
wiley   +1 more source

Four no-go theorems on the existence of spin and orbital angular momentum of massless bosons

SciPost Physics
The past decades have seen substantial interest in the so-called orbital angular momentum (OAM) of light, driven largely by its diverse range of applications.
Eric Palmerduca, Hong Qin
doaj   +1 more source

Interaction of an Archimedean spiral structure with orbital angular momentum light

New Journal of Physics, 2018
Complementing the research of surface plasmon polariton vortices for Archimedean spiral structures grooved in gold platelets, we here study the analogous positive structure of an Archimedean spiral consisting of bent gold nanorods. We consider spirals of
R M Kerber, J M Fitzgerald, X Xiao, S S Oh, S A Maier, V Giannini, D E Reiter   +6 more
doaj   +1 more source

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

Self‐Hybridized Exciton‐Polariton Photodetectors From Layered Metal‐Organic Chalcogenolates

Advanced Functional Materials, EarlyView.
Self‐hybridized exciton‐polariton photodetectors are demonstrated using high refractive index mithrene, eliminating the need for top mirrors. This simplified architecture enables tunable sub‐bandgap photodetection via lower exciton‐polariton states and enhanced carrier transport through ultrafast polariton group velocities.
Bongjun Choi, Adam D. Alfieri, Wangleong Chen, Deep Jariwala   +3 more
wiley   +1 more source