标题： 衍射剪切干涉术用于极紫外高分辨率无透镜成像 显示英文标题

标题： Diffractive shear interferometry for extreme ultraviolet high-resolution lensless imaging

摘要： 我们展示了一种新颖的远场相干衍射成像方法及其相关的重建算法，该方法基于一对侧向剪切衍射图样的测量。 从这种测量中提取的微分相位轮廓相比传统的相干衍射成像方法，提高了重建精度，增强了对噪声的鲁棒性，并加快了收敛速度。 我们使用来自高次谐波源的两对相位锁定脉冲的傅里叶变换光谱学来测量侧向剪切衍射图样。 利用这种方法，我们在28到35纳米的极紫外波长范围内实现了光谱分辨成像。 显示英文摘要

摘要： We demonstrate a novel imaging approach and associated reconstruction algorithm for far-field coherent diffractive imaging, based on the measurement of a pair of laterally sheared diffraction patterns. The differential phase profile retrieved from such a measurement leads to improved reconstruction accuracy, increased robustness against noise, and faster convergence compared to traditional coherent diffractive imaging methods. We measure laterally sheared diffraction patterns using Fourier-transform spectroscopy with two phase-locked pulse pairs from a high harmonic source. Using this approach, we demonstrate spectrally resolved imaging at extreme ultraviolet wavelengths between 28 and 35 nm.