منابع مشابه
Precision Limits to STEM Imaging from Dynamical Scattering and Channeling of Sub-Angstrom Electron Probes
Precision smaller than the resolution is routinely achieved in electron microscopy, with 3-5 pm being the best reported for STEM [1], compared to 1-3 pm for TEM [2]. The signal to noise ratio (SNR) introduces the fundamental precision limit in STEM and TEM images. However, before the fundamental limit is reached, practical limits are usually encountered, such as image distortions caused by inst...
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The atomic structure of a SiGe/Si epitaxial interface grown via molecular beam epitaxy on a single crystal silicon substrate was investigated using an aberration-corrected scanning transmittance electron microscope equipped with a high-angle annular dark-field detector and an energy-dispersive spectrometer. The accuracy required for compensation of the various residual aberration coefficients t...
متن کاملModal interference in optical nanofibers for sub-Angstrom radius sensitivity
FREDRIK K. FATEMI,* JONATHAN E. HOFFMAN, PABLO SOLANO, ELIOT F. FENTON, GUY BEADIE, STEVEN L. ROLSTON, AND LUIS A. OROZCO Army Research Laboratory, Adelphi, Maryland 20783, USA Joint Quantum Institute, Department of Physics, University of Maryland and National Institute of Standards and Technology, College Park, Maryland 20742, USA Naval Research Laboratory, Washington, DC 20375, USA *Correspon...
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O anúncio de um computador quântico que pode ser acessado de forma remota por qualquer pessoa a partir de seu laptop é um acontecimento de grande importância para os cientistas da computação quântica. Neste trabalho nós apresentamos o computador quântico da International Business Machines (IBM) e sua plataforma IBM Quantum Experience (IBM-QE) como uma proposta didática em estudos de computação ...
متن کاملImaging columns of the light elements carbon, nitrogen and oxygen with sub Angstrom resolution.
It is reported that lattice imaging with a 300 kV field emission microscope in combination with numerical reconstruction procedures can be used to reach an interpretable resolution of about 80 pm for the first time. A retrieval of the electron exit wave from focal series allows for the resolution of single atomic columns of the light elements carbon, nitrogen, and oxygen at a projected nearest ...
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ژورنال
عنوان ژورنال: Microscopy and Microanalysis
سال: 2003
ISSN: 1431-9276,1435-8115
DOI: 10.1017/s1431927603441196