Results 31 to 40 of about 12,150 (260)

Peculiar effective optical anisotropy of planar isotropic lattices of sub-wavelength disks [PDF]

AIP Advances
Here, we demonstrate that the peculiar effective optical properties of planar lattices of nanoparticles clearly distinguish them from those typical for bulk crystals.
E. Bortchagovsky, F. Dai, M. Fleischer, D. R. T. Zahn   +3 more
doaj   +1 more source

Feshbach resonances in an optical lattice [PDF]

Physical Review A, 2005
We present the theory for ultracold atomic gases in an optical lattice near a Feshbach resonance. In the single-band approximation the theory describes atoms and molecules which can both tunnel through the lattice. Moreover, an avoided crossing between the two-atom and the molecular states occurs at every site.
Dickerscheid, D.B.M., Al-Khawaja, U., van Oosten, D., Stoof, H.T.C.   +3 more
openaire   +5 more sources

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

Nature 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, Youngsun Choi, Jae Woong Yoon, Seok Ho Song, Cha Hwan Oh, Pierre Berini   +5 more
doaj   +1 more source

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

Scientific 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, Dmitriy I. Belakovskiy, Ilya V. Chaplygin, Jie Gao, Xiaodong Yang   +4 more
doaj   +1 more source

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

Annals 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, Dana Olofson, Diana Anissian, Divyanshu Dubey, Eoin P. Flanagan, Max C. Herman, Sarosh R. Irani, Daniel H. Lachance, Maria A. Willrich, Sean Pittock, John R. Mills, Anastasia Zekeridou   +11 more
wiley   +1 more source

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

Advanced 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, Lai Chen, Bailiang Pan, Linhua Ye, Chengfeng Wang, Junxiang Zhang, Li-Gang Wang   +6 more
doaj   +1 more source

Formation controllable two-dimensional surface optical lattices

Journal 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

Microstructural Evolution and Vacancy Defect Formation in Mn–Mo–Ni RPV Steel Under Low Cycle Fatigue: Insights From EBSD and PALS

Advanced Engineering Materials, EarlyView.
Low‐cycle fatigue damage in Mn–Mo–Ni reactor pressure vessel steel is examined using a combined electron backscatter diffraction and positron annihilation lifetime spectroscopy approach. The study correlates texture evolution, dislocation substructure development, and vacancy‐type defect formation across uniform, necked, and fracture regions, providing
Apu Sarkar, Dhanadeep Dutta, G. Bharat Reddy   +2 more
wiley   +1 more source

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

New 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

Thermodynamic Pathways of Nonequilibrium Solidification in Wire‐Arc Additive Manufacturing Fe‐Based Multicomponent Alloy Structures

Advanced Engineering Materials, EarlyView.
Geometry‐driven thermal behavior in wire‐arc additive manufacturing (WAAM) influences microstructural evolution during nonequilibrium solidification of a chemically complex Fe–Cr–Nb–W–Mo–C nanocomposite system. By comparing different deposits configurations, distinct entropy–cooling rate correlations, segregation, and carbide evolution are revealed ...
Blanca Palacios, Anthony Gonzalez, Aleksander Aleman, Tyler Dolmetsch, Tanaji Paul, Arvind Agarwal   +5 more
wiley   +1 more source