论文标题
散射Ptychography
Scatter Ptychography
论文作者
论文摘要
远程目标反射的相干照明可能是由中间物体或材料散布的。在这里，我们表明，在此类散射字段的远程观察的图像上进行阶段检索，可以将照明对象的成像成像分辨率与$λr_s/a_s $成比例的分辨率，其中$ r_s $是散点器和目标之间的范围，$ a_s $是观察到的散射的直径。该决议可能会超过通过因子$ r_ca_s/r_sa_c $直接查看目标的分辨率，其中$ r_c $是观察者和目标之间的范围，而$ a_c $是观察孔径。在这里，我们使用此技术来证明相对于直接成像的$ 32 \ times $分辨率改进。
Coherent illumination reflected by a remote target may be secondarily scattered by intermediate objects or materials. Here we show that phase retrieval on remotely observed images of such scattered fields enables imaging of the illuminated object at resolution proportional to $λR_s/A_s$, where $R_s$ is the range between the scatterer and the target and $A_s$ is the diameter of the observed scatter. This resolution may exceed the resolution of directly viewing the target by the factor $R_cA_s/R_sA_c$, where $R_c$ is the range between the observer and the target and $A_c$ is the observing aperture. Here we use this technique to demonstrate $\approx 32\times$ resolution improvement relative to direct imaging.
