Acta Optica Sinica, Volume. 8, Issue 2, 171(1988)
Transfer function improvement by means of synthesis of different defocused electron micrographs with unsymmetrical rotational aberrations
The different defocused electron micrographs with the unsymmetrical rotational aberrations are synthesized. It makes possible to get a relatively broad distribation of phase contrast transfer function(PCTF). The PCTF in the spatial frequency area has the similar phase and the regions near the zero point of transfer function, which do not transfer information, are filled by other transfer function. The resolution of electron micrograph is improved.
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SHEN XIAOQING, LI MINGJIN, ZHENG SHIHAI, LI FANGHUA. Transfer function improvement by means of synthesis of different defocused electron micrographs with unsymmetrical rotational aberrations[J]. Acta Optica Sinica, 1988, 8(2): 171