Optimization of monochromated TEM for ultimate resolution imaging and ultrahigh resolution electron energy loss spectroscopy

Sergei Lopatin; Bin Cheng; Wei Ting Liu; Meng Lin Tsai; Jr Hau He; Andrey Chuvilin

doi:10.1016/j.ultramic.2017.08.016

Optimization of monochromated TEM for ultimate resolution imaging and ultrahigh resolution electron energy loss spectroscopy

Sergei Lopatin^*, Bin Cheng, Wei Ting Liu, Meng Lin Tsai, Jr Hau He, Andrey Chuvilin

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

29 Scopus citations

Abstract

The performance of a monochromated transmission electron microscope with Wien type monochromator is optimized to achieve an extremely narrow energy spread of electron beam and an ultrahigh energy resolution with spectroscopy. The energy spread in the beam is improved by almost an order of magnitude as compared to specified values. The optimization involves both the monochromator and the electron energy loss detection system. We demonstrate boosted capability of optimized systems with respect to ultra-low loss EELS and sub-angstrom resolution imaging (in a combination with spherical aberration correction).

Original language	English (US)
Pages (from-to)	109-115
Number of pages	7
Journal	Ultramicroscopy
Volume	184
DOIs	https://doi.org/10.1016/j.ultramic.2017.08.016
State	Published - Jan 2018

Bibliographical note

Publisher Copyright:
© 2017 Elsevier B.V.

Keywords

Bandgap
EELS
Phonons
Plasmons
Sub-angstrom resolution
Ultra-low energy loss

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Atomic and Molecular Physics, and Optics
Instrumentation

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10.1016/j.ultramic.2017.08.016

Cite this

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title = "Optimization of monochromated TEM for ultimate resolution imaging and ultrahigh resolution electron energy loss spectroscopy",

abstract = "The performance of a monochromated transmission electron microscope with Wien type monochromator is optimized to achieve an extremely narrow energy spread of electron beam and an ultrahigh energy resolution with spectroscopy. The energy spread in the beam is improved by almost an order of magnitude as compared to specified values. The optimization involves both the monochromator and the electron energy loss detection system. We demonstrate boosted capability of optimized systems with respect to ultra-low loss EELS and sub-angstrom resolution imaging (in a combination with spherical aberration correction).",

keywords = "Bandgap, EELS, Phonons, Plasmons, Sub-angstrom resolution, Ultra-low energy loss",

author = "Sergei Lopatin and Bin Cheng and Liu, {Wei Ting} and Tsai, {Meng Lin} and He, {Jr Hau} and Andrey Chuvilin",

note = "Publisher Copyright: {\textcopyright} 2017 Elsevier B.V.",

year = "2018",

month = jan,

doi = "10.1016/j.ultramic.2017.08.016",

language = "English (US)",

volume = "184",

pages = "109--115",

journal = "Ultramicroscopy",

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T1 - Optimization of monochromated TEM for ultimate resolution imaging and ultrahigh resolution electron energy loss spectroscopy

AU - Lopatin, Sergei

AU - Cheng, Bin

AU - Liu, Wei Ting

AU - Tsai, Meng Lin

AU - He, Jr Hau

AU - Chuvilin, Andrey

PY - 2018/1

Y1 - 2018/1

N2 - The performance of a monochromated transmission electron microscope with Wien type monochromator is optimized to achieve an extremely narrow energy spread of electron beam and an ultrahigh energy resolution with spectroscopy. The energy spread in the beam is improved by almost an order of magnitude as compared to specified values. The optimization involves both the monochromator and the electron energy loss detection system. We demonstrate boosted capability of optimized systems with respect to ultra-low loss EELS and sub-angstrom resolution imaging (in a combination with spherical aberration correction).

AB - The performance of a monochromated transmission electron microscope with Wien type monochromator is optimized to achieve an extremely narrow energy spread of electron beam and an ultrahigh energy resolution with spectroscopy. The energy spread in the beam is improved by almost an order of magnitude as compared to specified values. The optimization involves both the monochromator and the electron energy loss detection system. We demonstrate boosted capability of optimized systems with respect to ultra-low loss EELS and sub-angstrom resolution imaging (in a combination with spherical aberration correction).

KW - Bandgap

KW - EELS

KW - Phonons

KW - Plasmons

KW - Sub-angstrom resolution

KW - Ultra-low energy loss

UR - http://www.scopus.com/inward/record.url?scp=85028700166&partnerID=8YFLogxK

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DO - 10.1016/j.ultramic.2017.08.016

M3 - Article

C2 - 28886488

AN - SCOPUS:85028700166

SN - 0304-3991

VL - 184

SP - 109

EP - 115

JO - Ultramicroscopy

JF - Ultramicroscopy

ER -

Optimization of monochromated TEM for ultimate resolution imaging and ultrahigh resolution electron energy loss spectroscopy

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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