Engineering topics
Hwu, Y
Publications and source records attributed to Hwu, Y.
High-resolution Hard-x-ray Microscopy using Second-order Zone-plate Diffraction
Odd-order diffraction of zone plates (ZPs) is already used for x-ray microscopy but the potential offered by even-order diffraction must still be fully exploited. Width differences between lines and interline spaces transfer intensity from odd-order to even-order diffractions. Here we show that the resulting intense second-order diffraction provides a reasonable tradeoff between spatial resolution and intensity - and constitutes a viable strategy for x-ray microscopy to reach sub-20 nm resolution, in spite of the imperfections of high-aspect-ratio ZPs and of other difficulties.
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSIC↗