Results 61 to 70 of about 4,399 (209)

Quantitative Mapping of the Charge Density in a Monolayer of MoS 2 at Atomic Resolution by Off-Axis Electron Holography

open access: yes, 2019
International audienceThe electric potential, electric field, and charge density of a monolayer of MoS2 have been quantitatively measured at atomic-scale resolution.
Sklenard, Benoit   +6 more
core   +1 more source

Mapping the electrostatic potential of Au nanoparticles using hybrid electron holography [PDF]

open access: yes, 2016
Electron holography is a powerful technique for characterizing electrostatic potentials, charge distributions, electric and magnetic fields, strain distributions and semiconductor dopant distributions with sub-nm spatial resolution.
Boothroyd, Christopher Brian   +4 more
core   +2 more sources

Inhomogeneous spatial distribution of the magnetic transition in an iron-rhodium thin film

open access: yesNature Communications, 2017
Films of iron-rhodium alloy undergo a magnetic transition at 100°C, and so are attractive for applications, but a detailed understanding of the transition mechanism has not been achieved.
C. Gatel   +7 more
doaj   +1 more source

Dramatic and Elusive Resonant Lattice Kerker Effect in the Nonlinear Response of Plasmonic Lattices

open access: yesNanophotonics, Volume 15, Issue 12, 25 June 2026.
Plasmonic metasurface that supports the resonant lattice Kerker effect, manifesting as the suppression of reflection in a narrow spectral range due to the simultaneous excitation of electric dipole and quadrupole modes, also gives rise to a substantial near‐field enhancement.
Sergejs Boroviks   +3 more
wiley   +1 more source

Nanoscale Mapping of Plasmonic Charge Transport in Nano‐Resonators Based on Resistive Switching Materials

open access: yesAdvanced Functional Materials, Volume 36, Issue 46, 8 June 2026.
In this strategy, a conductive nano‐probe is employed to induce nanoscale phase transitions and map the nanoscale conductivity and trap density of GST films. By utilizing the contrasting properties of phase‐change states, nano‐resonators are fabricated that exhibit plasmonic conduction and dramatically different transport characteristics.
Sunwoo Bang   +4 more
wiley   +1 more source

Holography and transmission electron microscopy

open access: yes, 1993
The basic principles and methods of off-axis electron holography are presented and illustrated by means of three examples related to its application in high resolution electron microscopy and the investigation of electric and magnetic fields in thin ...
G. POZZI, A. TONOMURA, G. MATTEUCCI
core   +1 more source

High brightness ultrafast transmission electron microscope based on a laser-driven cold-field emission source: principle and applications

open access: yesAdvances in Physics: X, 2019
We report on the development of an ultrafast Transmission Electron Microscope based on a laser-driven cold-field emission source. We first describe the instrument before reporting on numerical simulations of the laser-driven electron emission.
G. M. Caruso   +4 more
doaj   +1 more source

Generating Circularly Polarized Light Using Hybrid Near‐Zero and High‐Index Materials

open access: yesAdvanced Photonics Research, Volume 7, Issue 6, June 2026.
A flat‐optics approach to manipulating the polarization state of light is proposed using evanescent‐wave interactions in hybrid epsilon‐near‐zero and high‐index materials. The design enables linear‐to‐circular polarization conversion in a wavelength‐scale device design without depending on patterning or bulky optics and operates in both reflection and ...
Ben Johns   +4 more
wiley   +1 more source

Electron Holography of Nanoparticles [PDF]

open access: yes, 2008
This thesis treats a number of aspects of electron holography. In conventional microscopy only the intensity of the object wave is recorded during the imaging process. The phase information is lost.
Keimpema, Koenraad,, Keimpema, Koenraad
core  

X-ray holography

open access: yes, 2020
With the dramatic increase in x-ray source brilliance and associated coherent photon flux, holography with x-rays has become feasible and is increasingly used for real-space investigations of static and dynamic properties of nanoscale systems.
Pfau, Bastian,   +2 more
core   +1 more source

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