Open AccessJournal Article
High-resolution spherical-aberration-free phase imaging by defocus image modulation processing under hollow-cone illumination : Experimental confirmation by optical microscopy
TLDR
In this paper, a new type high resolution electron microscopic observation, DIMP-EM under hollow-cone illumination, has been presented, where the spherical-aberration-free complex wavefield at the exit surface of the specimen has been retrieved with the resolution 1.8 times higher than under axial illumination.About:
This article is published in Optik.The article was published on 1997-01-01 and is currently open access. It has received 1 citations till now. The article focuses on the topics: Resolution (electron density) & Spherical aberration.read more
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Journal ArticleDOI
Theoretical background of defocus image modulation processing (DIMP) based on three dimensional optical transfer functions (3D-OTFs)
TL;DR: In this paper, the theoretical background of DIMP is investigated by using 3D-OTFs in 3D Fourier space under coherent illumination and the filtering characteristics of the dIMP are interpreted using the 3DOTFs.
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