Results 61 to 70 of about 274,936 (332)

On quantum states for angular position and angular momentum of light

open access: hybridJournal of Optics
Abstract In the present paper we construct a properly defined quantum state ψ ( θ ) expressed ...
Bo-Sture Skagerstam, Per Kristian Rekdal
openalex   +3 more sources

Reevaluating the Activity of ZIF‐8 Based FeNCs for Electrochemical Ammonia Production

open access: yesAdvanced Functional Materials, EarlyView.
Though receiving much attention, the field of electrochemical nitrogen reduction reaction (eNRR) to ammonia is marked by doubts about whether this reaction is possible in aqueous media. This work sheds light on this question for iron single‐atom on N‐doped carbon (FeNC) catalysts—a class of well‐known catalysts that is also worth testing for the sister
Caroline Schneider   +6 more
wiley   +1 more source

Gravitational orbital Hall effect of vortex light in Lense–Thirring metric

open access: yesEuropean Physical Journal C: Particles and Fields
Vortex light, characterized by an intrinsic orbital angular momentum aligned with its propagation direction, is described through vortex electromagnetic waves.
Wei-Si Qiu   +2 more
doaj   +1 more source

Generation of angular-momentum-dominated electron beams from a photoinjector

open access: yesPhysical Review Special Topics. Accelerators and Beams, 2004
Various projects under study require an angular-momentum-dominated electron beam generated by a photoinjector. Some of the proposals directly use the angular-momentum-dominated beams (e.g., electron cooling of heavy ions), while others require the beam ...
Y.-E Sun   +7 more
doaj   +1 more source

Radial Structure of OAM-Carrying Fundamental X-Waves

open access: yesApplied Sciences, 2020
We investigate the spectral degree of freedom of OAM-carrying localized waves and its influence on their transverse intensity distribution. In particular, we focus our attention on exponentially decaying spectra, which are very tightly connected to ...
Souvik Agasti, Marco Ornigotti
doaj   +1 more source

Dynamic interferometry measurement of orbital angular momentum of light [PDF]

open access: yesOptics Letters, 2014
We present a dynamic interferometry to measure the orbital angular momentum (OAM) of beams. An opaque screen with two nonparallel air slits is employed that can be regarded as the Young's double-pinhole interference. When the OAM beams with an annular intensity distribution vertically incident, the far-field interference patterns depend on the phase ...
Hailong, Zhou   +3 more
openaire   +2 more sources

Synthesis and Electronic Structure of the Fractionally Occupied Double Perovskite EuTa2O6 with Ordered Europium Vacancies

open access: yesAdvanced Functional Materials, EarlyView.
Two‐dimensional electronic states are the foundation of modern semiconductor technology. Here, we report molecular‐beam epitaxy growth of fractional double perovskite, EuTa2O6. Reciprocal space mapping and transmission electron microscopy confirm a layered ordering of A‐site cations.
Tobias Schwaigert   +15 more
wiley   +1 more source

Structured transverse orbital angular momentum probed by a levitated optomechanical sensor

open access: yesNature Communications, 2023
The momentum carried by structured light fields exhibits a rich array of surprising features. In this work, we generate transverse orbital angular momentum (TOAM) in the interference field of two parallel and counter-propagating linearly-polarised ...
Yanhui Hu   +6 more
doaj   +1 more source

Emerging 2D Materials and Their Hybrid Nanostructures for Label‐Free Optical Biosensing: Recent Progress and Outlook

open access: yesAdvanced Functional Materials, EarlyView.
This review highlights recent advances in label‐free optical biosensors based on 2D materials and rationally designed mixed‐dimensional nanohybrids, emphasizing their synergistic effects and novel functionalities. It also discusses multifunctional sensing platforms and the integration of machine learning for intelligent data analysis.
Xinyi Li, Yonghao Fu, Yuehe Lin, Dan Du
wiley   +1 more source

Angular Momentum-Dependent Transmission of Circularly Polarized Vortex Beams Through a Plasmonic Coaxial Nanoring

open access: yesIEEE Photonics Journal, 2018
In this paper, we report on the theoretical and numerical study of the transmission of circularly polarized vortex beams through a plasmonic coaxial nanoring.
Shuai Wang   +9 more
doaj   +1 more source

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