TY  - JOUR
AU  - Dwyer, Christian
AU  - Boothroyd, Christopher Brian
AU  - Chang, S. L. Y.
AU  - Dunin-Borkowski, Rafal
TI  - Three-wave electron vortex lattices for measuring nanofields
JO  - Ultramicroscopy
VL  - 148
SN  - 0304-3991
CY  - Amsterdam
PB  - Elsevier Science
M1  - FZJ-2015-01032
SP  - 25-30
PY  - 2015
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.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000345973000004
DO  - DOI:10.1016/j.ultramic.2014.08.011
UR  - https://juser.fz-juelich.de/record/187361
ER  -