Results 111 to 120 of about 54,067 (294)

State-dependent potentials in a nanofiber-based two-color trap for cold atoms

, 2013
We analyze the ac Stark shift of a cesium atom interacting with far-off-resonance guided light fields in the nanofiber-based two-color optical dipole trap realized by Vetsch \textit{et al.} [Phys. Rev. Lett. \textbf{104}, 203603, (2010)].
Kien, Fam Le, Rauschenbeutel, Arno, Schneeweiss, Philipp   +2 more
core   +2 more sources

Helical Electron Beam Micro‐Bunching by High‐Order Modes in a Micro‐Plasma Waveguide

Advanced Science, EarlyView.
ABSTRACT Electron acceleration by a high‐power Laguerre‐Gaussian pulse in a micro‐plasma waveguide is investigated. When the incident laser travels in the waveguide, electrons on the wall are extracted into the vacuum core and accelerated by the longitudinal field of the waveguide mode.
Xingju Guo, Longqing Yi
wiley   +1 more source

Multiscale Perspectives on Perovskite Instability: From Atomistic Deformation to Device Degradation in Perovskite Solar Cells

Advanced Energy Materials, EarlyView.
Multiscale perspectives on how excess charges in soft lead halide perovskites induce operational instability in photovoltaic devices are presented. Localized carriers formed under thermodynamic non‐equilibrium states modify atomistic interactions and drive lattice distortions, accelerating device degradation.
Joo‐Hong Lee, Donghyeon Lee, Seoyoon Lee, Jin‐Wook Lee, Mansoo Choi, Min‐cheol Kim, Namyoung Ahn   +6 more
wiley   +1 more source

Multifunctional Metasurfaces for Bridging Terahertz Waves in Free Space and Waveguides

Advanced Physics Research, EarlyView.
A multifunctional terahertz metasurface capable of simultaneous orthogonal polarization conversion and phase modulation is integrated onto a dielectric slab waveguide, thereby enabling efficient free‐space‐to‐guided‐wave coupling. By implementing tailored phase gradients on the metasurface, we demonstrate the formation of a focused spot within the ...
Jinhui Lu, Yushan Chen, Min Zhang, Hong Su, Ling Li, Huawei Liang   +5 more
wiley   +1 more source

GRAPE - A Balloon-Borne Gamma-Ray Polarimeter Experiment

, 2005
This paper reviews the development status of GRAPE (the Gamma-Ray Polarimeter Experiment), a hard X-ray Compton Polarimeter. The purpose of GRAPE is to measure the polarization of hard X-rays in the 50-300 keV energy range. We are particularly interested
J. M Ryan, J. R Macri, J. S Legere, Legere J L, M. L McConnell, McConnell M L, McConnell M L, McConnell M L, P. F Bloser, T Narita   +9 more
core   +2 more sources

Polarization and propagation characteristics of the azimuthally polarized non-diffracting beam

Acta Physica Sinica, 2015
In this paper, the characteristics of the azimuthally polarized non-diffracting beam (APB) propagating in the free space and obstruction space are investigated theoretically and experimentally. The variations in intensity distribution and polarization characteristics of the APB in propagation process are simulated.
null Liu Ji-Lin, null Chen Zi-Yang, null Zhang Lei, null Pu Ji-Xiong   +3 more
openaire   +1 more source

Roles of 2D halide perovskites in 2D/3D heterojunctions for high‐performance perovskite solar cells

Bulletin of the Korean Chemical Society, EarlyView.
This review establishes a design framework for two‐dimensional (2D)/three‐dimensional (3D) perovskite heterojunctions, redefining the 2D perovskite layer as an active semiconductor component. We classify 2D structures by spacer chemistry and analyze their roles within the heterojunction.
Seungmin Lee, Oui Jin Oh, Dong Hyun Kim, Dong Hun Kang, Jun Hong Noh   +4 more
wiley   +1 more source

Turbulent Vortex with Moderate Dust Settling Probed by Scattering-induced Polarization in the IRS 48 System

The Astrophysical Journal
We investigate the crescent-shaped dust trap in the transition disk Oph IRS 48 using well-resolved (sub)millimeter polarimetric observations at ALMA Band 7 (870 μ m).
Haifeng Yang, Manuel Fernández-López, Zhi-Yun Li, Ian W. Stephens, Leslie W. Looney, Zhe-Yu Daniel Lin, Rachel Harrison   +6 more
doaj   +1 more source

Probing Radical‐Induced Magnetic Moment Modulation at Cobalt Interfaces via Soft X‐Ray Photoelectron Spectroscopy

Chemistry – A European Journal, EarlyView.
X‐ray photoelectron spectroscopy reveals to be a powerful technique to explore subtle changes of the electronic structure at the radical/cobalt interface. The radical chemisorption influences the cobalt electronic structure and consequently its magnetic properties.
Maria Benedetta Casu
wiley   +1 more source

Determining the CP property of htt¯ coupling via a novel jet substructure observable

Physics Letters B
Determining the CP property of the Higgs boson is important for a precision test of the Standard Model as well as for the search for new physics. We propose a novel jet substructure observable based on the azimuthal anisotropy in a linearly polarized ...
Zhite Yu, Kirtimaan A. Mohan, C.-P. Yuan
doaj   +1 more source