差相对比 STEM (DPC-STEM) 用于执行此类任务、使您能够对样品中和样品周围磁场的强度和分布进行成像、并直接显示磁性域结构。 这项技术如此有价值的是其能够直接对数据存储和电子设备所用的复杂材料进行成像。 DPC-STEM 应用于多个研究领域。 在自旋电子学领域、通常需要确定亚微米级阵列磁性材料的微磁场状态。 在光电设备中、非中心对称材料中的量子孔会导致可修改这些设备的频带结构的强压电场。 这些电子器件和光电材料需要全面了解，而这是 DPC-STEM …

DPC imaging. Modern electronics research often relies on nanometer-scale characterization of electric and magnetic properties. Differential phase contrast STEM (DPC-STEM) is used to perform such tasks, allowing you to image the strength and distribution of magnetic fields in and around your sample, and directly display the magnetic domain ...

Illumination-based differential phase contrast (DPC) is a phase imaging method that uses a pair of images with asymmetric illumination patterns. Distinct from coherent techniques, DPC relies on spatially partially coherent light, providing 2× better lateral resolution, better optical sectioning and immunity to speckle noise.

2024年12月1日 · Magnifier is the first publicly available software for modeling DPC-STEM images. The capability of Magnifier to reproduce experimental DPC-STEM images was confirmed by comparing experimental iDPC-STEM images of Li5OsO6, α …

差分相衬(Differential phase contrast, DPC)成像是一种基于部分相干照明调控的无标记非干涉相位成像方法, 它为未染色透明样品提供了一种快速、有效且高分辨率的可视化手段。DPC通过多次非对称照明调控或非对称孔径调制使不可见的样品相位信息转换为成像器件可 ...

Differential phase contrast (DPC) imaging in scanning transmission electron microscopy (STEM) allows for the examination of fields present inside and outside a specimen with resolutions only limited by the instrument's capabilities.

2012年6月24日 · Here, we demonstrate atomic-resolution DPC imaging of crystals using aberration-corrected scanning transmission electron microscopy. The image contrast reflects the gradient of the...

Here, we demonstrate atomic-resolution DPC imaging of crystals using aberration-corrected scanning transmission electron microscopy. The image contrast reflects the gradient of the...

2018年8月15日 · The DPC (Differential Phase Contrast) is a technique to obtain a high contrast image from a phase object in STEM (Scanning Transmission Electron Microscope). The qDCP gives a boundary-artifact-free phase contrast image by integrating DPC signals contrary to the solution given by FFT (Fast Fourier transform).

Magnifier is a software that allows to simulate scanning transmission electron microscopy (STEM) integrated/differentiated differential phase contrast (iDPC/dDPC) images. For this aim, you need to have four STEM images acquired (or simulated) by divided bright field (BF) detector into four equal segments.