Maiden Andrew M, Humphry Martin J, Zhang Fucai, Rodenburg John M
Department of Electrical & Electronic Engineering, University of Sheffield, S1 3JD, UK.
J Opt Soc Am A Opt Image Sci Vis. 2011 Apr 1;28(4):604-12. doi: 10.1364/JOSAA.28.000604.
Coherent diffractive imaging of objects is made considerably more practicable by using ptychography, where a set of diffraction patterns replaces a single measurement and introduces a high degree of redundancy into the recorded data. Here we demonstrate that this redundancy allows diffraction patterns to be extrapolated beyond the aperture of the recording device, leading to superresolved images, improving the limit on the finest feature separation by more than a factor of 3.
通过使用叠层成像术，物体的相干衍射成像变得更加可行，在叠层成像术中，一组衍射图案取代了单次测量，并在记录数据中引入了高度冗余性。在此我们证明，这种冗余性使得衍射图案能够外推到记录设备孔径之外，从而得到超分辨图像，将最精细特征分离的极限提高了三倍多。
