Results 41 to 50 of about 19,046 (299)

Observation of exceptional points in reconfigurable non-Hermitian vector-field holographic lattices

open access: yesNature Communications, 2016
Non-Hermitian Hamiltonians have attracted significant attention because of the unconventional wave-dynamic effects they allow. Here, Hahn et al. report reconfigurable non-Hermitian photonic lattices that permit versatile control of real and imaginary sub-
Choloong Hahn   +5 more
doaj   +1 more source

Optical Bloch oscillations and Zener tunneling of Airy beams in ionic-type photonic lattices [PDF]

open access: yes, 2016
We report on the existence of optical Bloch oscillations (OBOs) and Zener tunneling (ZT) of Airy beams in ionic-type photonic lattices with a refractive index ramp.
Malin Premaratne (1424017)   +15 more
core   +1 more source

Large in-plane vibrational and optical anisotropy in natural 2D heterostructure abramovite

open access: yesScientific Reports, 2022
The design and formation of van der Waals (vdW) heterostructures with different two-dimensional (2D) materials provide an opportunity to create materials with extraordinary physical properties tailored toward specific applications. Mechanical exfoliation
Arindam Dasgupta   +4 more
doaj   +1 more source

Formation controllable two-dimensional surface optical lattices

open access: yesJournal of Taibah University for Science, 2023
The evanescent light field created by total internal reflection at a dielectric-vacuum interface has tight spatial confinement and high local intensity.
S. Al-Awfi
doaj   +1 more source

GAD65 Antibody ELISA With Extended Reportable Range: Validation and Guidance for Neurological Practice

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To (1) validate GAD65‐ELISA detection and quantification for type 1 diabetes mellitus and autoimmune neurological diagnoses, (2) correlate ELISA results (reference range < 5 IU/mL) with established radioimmunoprecipitation assay (RIA; ≤ 0.02 nmol/L), and (3) define ELISA clinical utility and pitfalls.
Andrew McKeon   +11 more
wiley   +1 more source

Colloidal transport in twisted lattices of optical tweezers

open access: yes, 2022
We simulate the transport of colloidal particles driven by a static and homogeneous drift force, and subject to the optical potential created by two lattices of optical tweezers.
Fischer, Thomas M.   +2 more
core   +2 more sources

2D Exotic Optical Lattice via a Digital‐Coding Circular Airy Beam

open access: yesAdvanced Photonics Research
Optical lattices have been widely used from classical to quantum physics. The tunable and scalable fabrication of lattices would be of great significance in lattice‐based multipartite applications.
Peisheng Sun   +6 more
doaj   +1 more source

Quantum walk and Anderson localization of rotational excitations in disordered ensembles of polar molecules

open access: yesNew Journal of Physics, 2015
We consider the dynamics of rotational excitations placed on a single molecule in spatially disordered one-dimensional (1D), two-dimensional (2D) and three-dimensional (3D) ensembles of ultracold molecules trapped in optical lattices. The disorder arises
T Xu, R V Krems
doaj   +1 more source

Optical realization of the atom–field interaction in waveguide lattices [PDF]

open access: yes, 2012
A classical realization of the atom–field interaction Hamiltonian, based on the transport of light in engineered optical waveguide lattices, is theoretically proposed.
Héctor Manuel Moya Cessa   +1 more
core  

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