Accumulated Reconstruction Method for Electron Holography
نویسندگان
چکیده
One of the long standing problems affecting electron holography, such as lateral coherence limitation, has been solved by the split illumination method with a specially customized transmission electron microscope (TEM). The customized TEM has single [1] or double [2] biprisms in a condenser optical system. Conventional TEM, constructed for electron holography, however, does not have any biprisms in the condenser system. The problem, therefore, still remains unsolved in practice. In order to reduce the difficulties of conventional electron holography, an “accumulated reconstruction” method depending on the principle of two-wave interferometry was developed.
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