Three-wave electron vortex lattices for measuring nanofields

C. Dwyer; C. B. Boothroyd; S. L.Y. Chang; R. E. Dunin-Borkowski

doi:10.1016/j.ultramic.2014.08.011

Three-wave electron vortex lattices for measuring nanofields

C. Dwyer, C. B. Boothroyd, S. L.Y. Chang, R. E. Dunin-Borkowski

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

5 Scopus citations

Abstract

It is demonstrated how an electron-optical arrangement consisting of two electron biprisms can be used to generate three-wave vortex lattices with effective lattice spacings between 0.1 and 1. nm. The presence of vortices in these lattices was verified by using a third biprism to perform direct phase measurements via off-axis electron holography. The use of three-wave lattices for nanoscale electromagnetic field measurements via vortex interferometry is discussed, including the accuracy of vortex position measurements and the interpretation of three-wave vortex lattices in the presence of partial spatial coherence.

Original language	English (US)
Pages (from-to)	25-30
Number of pages	6
Journal	Ultramicroscopy
Volume	148
DOIs	https://doi.org/10.1016/j.ultramic.2014.08.011
State	Published - Sep 1 2014
Externally published	Yes

Keywords

Holography
Partial coherence
Vortex
Vortex lattice

ASJC Scopus subject areas

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

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10.1016/j.ultramic.2014.08.011

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title = "Three-wave electron vortex lattices for measuring nanofields",

abstract = "It is demonstrated how an electron-optical arrangement consisting of two electron biprisms can be used to generate three-wave vortex lattices with effective lattice spacings between 0.1 and 1. nm. The presence of vortices in these lattices was verified by using a third biprism to perform direct phase measurements via off-axis electron holography. The use of three-wave lattices for nanoscale electromagnetic field measurements via vortex interferometry is discussed, including the accuracy of vortex position measurements and the interpretation of three-wave vortex lattices in the presence of partial spatial coherence.",

keywords = "Holography, Partial coherence, Vortex, Vortex lattice",

author = "C. Dwyer and Boothroyd, {C. B.} and Chang, {S. L.Y.} and Dunin-Borkowski, {R. E.}",

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year = "2014",

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day = "1",

doi = "10.1016/j.ultramic.2014.08.011",

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T1 - Three-wave electron vortex lattices for measuring nanofields

AU - Dwyer, C.

AU - Boothroyd, C. B.

AU - Chang, S. L.Y.

AU - Dunin-Borkowski, R. E.

PY - 2014/9/1

Y1 - 2014/9/1

N2 - It is demonstrated how an electron-optical arrangement consisting of two electron biprisms can be used to generate three-wave vortex lattices with effective lattice spacings between 0.1 and 1. nm. The presence of vortices in these lattices was verified by using a third biprism to perform direct phase measurements via off-axis electron holography. The use of three-wave lattices for nanoscale electromagnetic field measurements via vortex interferometry is discussed, including the accuracy of vortex position measurements and the interpretation of three-wave vortex lattices in the presence of partial spatial coherence.

AB - It is demonstrated how an electron-optical arrangement consisting of two electron biprisms can be used to generate three-wave vortex lattices with effective lattice spacings between 0.1 and 1. nm. The presence of vortices in these lattices was verified by using a third biprism to perform direct phase measurements via off-axis electron holography. The use of three-wave lattices for nanoscale electromagnetic field measurements via vortex interferometry is discussed, including the accuracy of vortex position measurements and the interpretation of three-wave vortex lattices in the presence of partial spatial coherence.

KW - Holography

KW - Partial coherence

KW - Vortex

KW - Vortex lattice

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U2 - 10.1016/j.ultramic.2014.08.011

DO - 10.1016/j.ultramic.2014.08.011

M3 - Article

AN - SCOPUS:84907271945

SN - 0304-3991

VL - 148

SP - 25

EP - 30

JO - Ultramicroscopy

JF - Ultramicroscopy

ER -

Three-wave electron vortex lattices for measuring nanofields

Abstract

Keywords

ASJC Scopus subject areas

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