Levine Zachary H
National Institute of Standards and Technology, Gaithersburg, MD 20899-8410.
J Res Natl Inst Stand Technol. 2002 Aug 1;107(4):319-25. doi: 10.6028/jres.107.025. Print 2002 Jul-Aug.
An algorithm is presented for assembling tiles into a variable spaced grating, the one-dimensional analog of a Fresnel zone plate. The algorithm supports multi-level gratings. The x-ray properties of such a grating, assumed to be constructed from DNA are estimated, leading to the conclusion that thick structures may be useful for intermediate energy x rays, but that thin structures for soft x rays are best used as disposable masks. The diffraction of cold, coherent atoms is a plausible application for single layer stencils.
提出了一种将小片组装成可变间距光栅的算法，该光栅是菲涅耳波带片的一维类似物。该算法支持多级光栅。假设由DNA构建的这种光栅的X射线特性被估算，得出的结论是，厚结构可能对中能X射线有用，但软X射线的薄结构最好用作一次性掩膜。冷相干原子的衍射是单层模板的一个合理应用。
