Beilstein J. Nanotechnol.2019,10, 1290–1302, doi:10.3762/bjnano.10.128
; Bessel beam; electron-beam shaping; nanofabrication; vortexbeam; Introduction
The possibility to shape electron beams has gained much interest since the first observation of electron vortex beams, i.e., beams that carry a defined orbital angular momentum [1][2][3]. Various other beam shapes, e.g., non
PDF
Figure 1:
Samples after optical lithography and etching. (a) Scheme of side view of a single membrane. The sk...