| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 8038212 | Ultramicroscopy | 2015 | 6 Pages |
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 1Â 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.
Related Topics
Physical Sciences and Engineering
Materials Science
Nanotechnology
Authors
C. Dwyer, C.B. Boothroyd, S.L.Y. Chang, R.E. Dunin-Borkowski,