Results 11 to 20 of about 1,233,111 (309)

Optical Spectrum and Electric Field Waveform Dependent Optically-Induced Dielectrophoretic (ODEP) Micro-Manipulation

open access: yesMicromachines, 2012
In the last seven years, optoelectronic tweezers using optically-induced dielectrophoretic (ODEP) force have been explored experimentally with much success in manipulating micro/nano objects.
Wen J. Li   +4 more
doaj   +2 more sources

Study on characteristics and beam emission theory of UTEM electron gun

open access: yesResults in Optics, 2021
In the ultrafast transmission electron microscopy (UTEM), the speed of the electron will be close to the light, when the electron pulse passes through the acceleration field.
He Chen, Quanlin Dong, Zhongwen Li
doaj   +1 more source

Micro-3D printed miniaturized systems for optical trapping and manipulation

open access: yes, 2022
Optical tweezers (OT) are non-destructive, contactless tools that use light to trap and manipulate microscopic objects. We design and fabricate miniaturized systems that provide new optical trapping and manipulation tools. Our work takes advantage of the
Liberale, Carlo
core   +1 more source

Kosterlitz-Thouless melting of magnetic order in the triangular quantum Ising material TmMgGaO4

open access: yesNature Communications, 2020
TmMgGaO4 is one of a number of recently-synthesized quantum magnets that are proposed to realize important theoretical models. Here the authors demonstrate the agreement between detailed experimental measurements and state-of-the-art predictions based on
Han Li   +7 more
doaj   +1 more source

Quantum speedup in noninertial frames

open access: yesEuropean Physical Journal C: Particles and Fields, 2020
We investigate the speedup evolution of the system under the influence of the Unruh effect, where one of the observers (e.g., Bob) is uniformly accelerated.
Kai Xu   +4 more
doaj   +1 more source

Topological superconductors from one-dimensional periodically modulated Majorana chains

open access: yesScientific Reports, 2017
By analogy to the topological models of fermions in one-dimensional periodically modulated lattices, we provide a systematic method to construct topological superconductors in BDI class.
Yang Lin   +4 more
doaj   +1 more source

Dielectric properties of TbMnO3 ceramics doped with Bi and Fe ions

open access: yesResults in Physics, 2016
The ceramic composites of TbMnO3, Tb0.95Bi0.05MnO3, Tb0.9Bi0.1MnO3 and Tb0.9Bi0.1Mn0.95Fe0.05O3 were compounded by conventional solid-state reaction. Both dielectric constants (ɛ′) and loss tangent (tanδ) of composites have been measured and studied as a
Jianxun Xu, Yimin Cui, Huaizhe Xu
doaj   +1 more source

Tunable Goos–Hänchen Shift and Polarization Beam Splitting Through a Cavity Containing Double Ladder Energy Level System

open access: yesIEEE Photonics Journal, 2019
The present paper theoretically demonstrates tunable Goos–Hänchen (GH) shift and beam splitting of the polarized light reflected from the cavity containing the double ladder energy level system.
Peng Han   +5 more
doaj   +1 more source

A 3D microrobotic actuator for micro and nano manipulation [PDF]

open access: yes, 2015
Following the invention of the atomic force microscopy, AFM has revolutionised not only surface sciences but also biological sciences more recently. From being used as a microscope with atomic resolution generating 3D topography of surfaces to being used
Banerjee, Steven
core   +1 more source

Achieving giant spin-orbit splitting in conduction band of monolayer WS2 via n-p co-doping

open access: yesAIP Advances, 2019
Large spin-orbit splitting in the conduction band minimum (CBM) of monolayer transition metal dichalcogenides (TMDs) is in great demand for suppressing the intervalley scattering.
Shaoqiang Guo   +3 more
doaj   +1 more source

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