The theoretical framework for the computation of electromagnetic fields and electron optical phase-shifts in Fourier space has been recently applied to objects with long-range fringing fields, such as reverse-biased p–n junctions and magnetic stripe domains near a specimen edge. In addition to new analytical results, in this work, we present a critical comparison between numerical and analytical computations. The influence of explicit and implicit boundary conditions on the phase shifts and phase-contrast images is also investigated in detail
Electron optical phase-shifts by Fourier methods: analytical versus numerical calculations / P. F. Fazzini; G. Pozzi; M. Beleggia. - In: ULTRAMICROSCOPY. - ISSN 0304-3991. - STAMPA. - 104:(2005), pp. 193-205. [10.1016/j.ultramic.2005.04.002]
Electron optical phase-shifts by Fourier methods: analytical versus numerical calculations
FAZZINI, PIER FRANCESCO;POZZI, GIULIO;
2005
Abstract
The theoretical framework for the computation of electromagnetic fields and electron optical phase-shifts in Fourier space has been recently applied to objects with long-range fringing fields, such as reverse-biased p–n junctions and magnetic stripe domains near a specimen edge. In addition to new analytical results, in this work, we present a critical comparison between numerical and analytical computations. The influence of explicit and implicit boundary conditions on the phase shifts and phase-contrast images is also investigated in detailI documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
