Phase-extraction technique for electron holography using a grating optical system.
A description is made of a grating optical system for extracting phase distribution from electron holograms, that has an extremely high stability and can eliminate system aberrations. Phase measurement is achieved with phase-shifting interferometry by stepping the grating laterally. The system is used to extract the phase distribution of a magnesium oxide crystal from its electron hologram.
Lai
G
G
Chen
J
J
Ishizuka
K
K
Tonomura
A
A