Bevis Charles, Karl Robert, Reichanadter Jonathan, Gardner Dennis F, Porter Christina, Shanblatt Elisabeth, Tanksalvala Michael, Mancini Giulia F, Kapteyn Henry, Murnane Margaret, Adams Daniel
JILA, University of Colorado, 440 UCB, Boulder, Colorado 80309-0440, USA.
JILA, University of Colorado, 440 UCB, Boulder, Colorado 80309-0440, USA.
Ultramicroscopy. 2018 Jan;184(Pt A):164-171. doi: 10.1016/j.ultramic.2017.08.018. Epub 2017 Sep 6.
The ability to record large field-of-view images without a loss in spatial resolution is of crucial importance for imaging science. For most imaging techniques however, an increase in field-of-view comes at the cost of decreased resolution. Here we present a novel extension to ptychographic coherent diffractive imaging that permits simultaneous full-field imaging of multiple locations by illuminating the sample with spatially separated, interfering probes. This technique allows for large field-of-view imaging in amplitude and phase while maintaining diffraction-limited resolution, without an increase in collected data i.e. diffraction patterns acquired.
在不损失空间分辨率的情况下记录大视场图像的能力对于成像科学至关重要。然而，对于大多数成像技术而言，视场的增加是以分辨率降低为代价的。在此，我们提出了一种对叠层相干衍射成像的新颖扩展，通过用空间分离的干涉探针照射样品，允许对多个位置进行同时全视场成像。该技术能够在保持衍射极限分辨率的同时，实现幅度和相位的大视场成像，而无需增加采集的数据量，即所采集的衍射图案数量。
