Diffractive Imaging

The goal of diffractive imaging is to indirectly generate an image of the specimen from its diffraction pattern. Because the technique does not rely on lenses for imaging, many of the adverse effects associated with lens aberrations are avoided. The method typically involves phase retrieval by an iterative algorithm, using the diffraction data and other a priori information about the specimen as input. The result is a reconstruction of the electron wave function at the exit surface of the specimen.