Slide Show 1: Electron Holography - Resolution Enhancement at the
Example of Si[110]
Slide 5: Reconstructed object wave
Abberation-corrected amplitude and phase of the electron object wave
reconstructed from the Si[110]-Hologram. Because of the correction, the
information previously spread out in the intensity distribution of the
hologram is reconcentrated at the atom columns.
The white dumbbell-contrast in the phase image, that directly represents
the atom positions, becomes visible and the amplitude image shows a
dark "figure-eight"-shaped contrast with faint white dots at the atom
columns; for a better visualization, some noise reduction
(Fourier filtering of the nonperiodic background in the spectrum) has been
applied.
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Alexander Orchowski
4. Apr. ┤95