论文标题
波长 - 多头单发ptychography
Wavelength-multiplexed single-shot ptychography
论文作者
论文摘要
近几十年来，能够在严峻的环境（例如等离子体）中审问动态的诊断一直保持不变。高级显微镜技术的发展将提高我们对这些事件涉及的物理学的理解。最近开发的单发ptychography（SSP）为复杂的等离子体计量学提供了途径。在这里，我们介绍了波长 - 多形的单发ptychography（WM-SSP），它允许高光谱，空间和时间分辨的相位和幅度对比度成像。此外，我们引入了单发几何形状中所有波长多重模态共有的新型探针约束，并向SSP进行了当前的修改，以改善重建忠诚度和鲁棒性。 WM-SSP实验实现，模拟显示了该技术在等离子体内对电子和中性密度进行解析的能力。 WM-SSP将为新一代定量等离子体成像技术铺平道路。
Diagnostics capable of interrogating dynamics in harsh environments such as plasma have remained essentially unchanged in recent decades. Developments in advanced microscopy techniques will improve our understanding of the physics involved in these events. Recently developed single-shot ptychography (SSP) provides a pathway towards sophisticated plasma metrologies. Here we introduce wavelength-multiplexed single-shot ptychography (WM-SSP), which allows for hyperspectral, spatially and temporally resolved phase and amplitude contrast imaging. Furthermore, we introduce a novel probe constraint common to all wavelength multiplexed modalities in the single-shot geometry and present modifications to SSP that improve reconstruction fidelity and robustness. WM-SSP was experimentally realized and simulations show the technique's ability to deconvolve the electron and neutral densities within the plasma. WM-SSP will pave the way to a new generation of quantitative plasma imaging techniques.
