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Robust and adjustable C-shaped electron vortex beams

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Published 5 June 2017 • © 2017 IOP Publishing Ltd and Deutsche Physikalische Gesellschaft
, , Citation M Mousley et al 2017 New J. Phys. 19 063008 DOI 10.1088/1367-2630/aa6e3c

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Supplementary data

Supplementary data (759 KB PDF).

Movie 1 (3.61 MB AVI). A rendering of the simulated Fresnel propagation for a C-shaped intensity with l=7.9 and c=2.1. The bright green region is a volume enclosing high intensity. Red or blue coloured lines are phase singularities. This is an orbit of the results shown in figure 2 iii in the main text.

Movie 2 (1.87 MB AVI). A reconstruction of the experimentally recorded intensities, this is an orbit of the results shown in figure 3 in the main text. The green volume encloses the highest recorded intensities, for one of the first diffraction orders produced in the experiment.

Movie 3 (6.20 MB AVI). A rendering of the simulated Fresnel propagation for the complex wavefunction resulting from an iterative Fourier transform algorithm, as discussed in the main text. The bright green region is a volume enclosing high intensity. Red lines are phase singularities. This is an orbit of the results shown in figure 2 iv in the main text.

Movie 4 (142 KB AVI). The Fourier plane intensity for the parameter pairs along path A in supplementary figure S1. The C shapes have a constant half opening angle (45 degrees) and increasing size from D=5 to D=15.

Movie 5 (4.83 MB AVI). The Fourier plane phase for a half opening angle varying from 0 to 45 degrees, for a constant size. Isophase lines can be seen to move towards the opening and stacks of phase singularities appear for larger opening angles.

Movie 6 (170 KB AVI). The Fourier plane intensity for the parameter pairs along path B in supplementary figure S1. The C shapes have a constant size (D=15) but increasing half opening angle from 15 to 45 degrees.