%0 Journal Article
%A Dwyer, Christian
%A Boothroyd, Christopher Brian
%A Chang, S. L. Y.
%A Dunin-Borkowski, Rafal
%T Three-wave electron vortex lattices for measuring nanofields
%J Ultramicroscopy
%V 148
%@ 0304-3991
%C Amsterdam
%I Elsevier Science
%M FZJ-2015-01032
%P 25-30
%D 2015
%X 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.
%F PUB:(DE-HGF)16
%9 Journal Article
%U <Go to ISI:>//WOS:000345973000004
%R 10.1016/j.ultramic.2014.08.011
%U https://juser.fz-juelich.de/record/187361