Grazing incidence interferometry for rough convex aspherics

掠入射几何下使用相干X射线的三维成像

Three Dimensional Imaging using Coherent X-Rays at Grazing Incidence Geometry

针对掠入射小角X射线散射中衬底反射束导致衍射图样偏离简单傅里叶变换的问题，提出采用畸变波玻恩近似的三维相干衍射成像相位反演算法，模拟验证有效，计划开展实验验证。

二色性手性光子晶体的磁光学：掠射角下的共振衍射透射与高阶反射

Magneto-optics of dichroic chiral photonic crystals: resonant diffraction transmission and higher-order reflections at grazing angles

本研究通过Berreman方法分析二色性胆甾相液晶的磁光效应，发现掠射角下出现共振衍射透射及高阶反射，外磁场可调控狄拉克点并抑制偏振转变，适用于可调谐窄带滤波器。

通过掠入射XFEL散射和衍射探测激光驱动的表面和亚表面动力学

Probing laser-driven surface and subsurface dynamics via grazing-incidence XFEL scattering and diffraction

开发了一种掠入射X射线平台，结合GISAXS和GID，以皮秒分辨率同时探测飞秒激光照射金膜的表面纳米形貌和亚表面晶格动力学，克服了同步辐射通量限制，为超快激光-物质相互作用和温稠密物质理论提供严格基准。

Electromagnetic Grazing Anomaly: Energy Flux Resonance Behaviour and Brewster Angle Analogy

The diffraction of electromagnetic waves at the surface periodic structures accompanied by strong anomalous effects in different diffraction orders is considered in great detail for high-contrast interfaces. We restrict our discussion to the TM polarization of the incident wave (the magnetic field is orthogonal to the plane of incidence) and the simplest geometry when the plane of incidence is orthogonal to the grating grooves. The most attention is focused on the strong maxima and minima of the energy flux density accompanying specific grazing propagation of some diffraction order. Relation t…

Exotic Grazing Resonances in Nanowires

We investigate electromagnetic scattering from nanoscale wires and reveal for the first time, the emergence of a family of exotic resonances, or enhanced fields, for source waves close to grazing incidence. These grazing resonances can have a much higher Q factor, broader bandwidth, and are much less susceptible to material losses than the well known surface plasmon resonances found in metal nanowires. Contrary to surface plasmon resonances however, these grazing resonances can be excited in both dielectric and metallic nanowires and are insensitive to the polarization state of the incident wa…

通过掠入射X射线散射观察飞秒激光激发的镀铝多层膜的（亚）皮秒表面关联

(Sub-)picosecond surface correlations of femtosecond laser excited Al-coated multilayers observed by grazing-incidence x-ray scattering

本研究利用GISAXS技术和XFEL脉冲，以纳米级深度灵敏度和亚皮秒时间分辨率，区分了飞秒激光激发镀铝多层膜的表面形态与次表面密度动力学，验证了极端条件下的模拟模型。

有序三维纳米结构掠入射X射线荧光表征的半解析方法

A semi-analytical approach for the characterization of ordered 3D nano structures using grazing-incidence X-ray fluorescence

本文提出基于动力学衍射理论多束近似的半解析计算方案，用于模拟周期性二维和三维纳米结构的掠入射X射线荧光强度，并通过拟合实验数据成功重建了Si3N4光栅和Cr纳米柱的尺寸与结构参数。

表面与界面结构相干表面散射成像的多层正演建模

Multislice forward modeling of Coherent Surface Scattering Imaging on surface and interfacial structures

本文提出多层正演模型解决CSSI中传统CDI重建方法无法处理临界角附近动力学散射的问题，并利用CUDA加速PyTorch优化实现单次散射图像的三维结构重建。

利用 Mössbauer 核的波导 QED

Waveguide QED with Moessbauer Nuclei

提出硬 X 射线前向耦合的 Mössbauer 核波导 QED 模型，揭示前向散射拍频与导模共振的结合及多模干涉效应。

广义惠更斯条件作为平面非局域全向透明性的支点：从超原子到超表面

Generalized Huygens' condition as the fulcrum of planar nonlocal omnidirectional transparency: from meta-atoms to metasurfaces

本文提出广义惠更斯条件，利用切向与法向极化率平衡及平面结构非局域机制，实现从超原子到 PCB 级联超表面的全角度无反射透明。

Electric Field Intensity Modulated Scattering as a Thin-Film Depth Probe

Grazing incidence x-ray scattering provides nanostructural information for thin film samples, but single images generally do not provide information on film thickness or the full complex index of refraction. Additionally, for thin films that possess stratification of scatterers vertically within a sample, it can be difficult to determine where those scatterers are positioned. We present an in-situ method to extract film thickness, the index of refraction, and depth information using scattering images taken across a range of incident angles. The underlying theory is presented, and we validate t…