论文标题
解决以纳米复合材料形成的光子结构检索的衍射相问题
Tackling the phase problem of diffraction for retrieval of photonic structures formed in nanocomposite materials
论文作者
论文摘要
我们在实验上证明了如何使用标准衍射实验设置解决衍射相问题，而无需获取任何辅助数据。特别是，我们表明，可以通过故意选择比晶格常数小得多的衍射辐射的探针波长来充分回收周期性结构的傅立叶成分的相。在演示过程中，我们通过光和中子衍射测量值准确地确定纳米复合相光栅的折射率谱。
We experimentally demonstrate how to solve the phase problem of diffraction using multi-wave interference with standard diffraction experimental setups without the need for taking any auxiliary data. In particular, we show that the phases of the Fourier components of a periodic structure can be fully recovered by deliberately choosing a probe wavelength of the diffracting radiation much smaller than the lattice constant. In the course of the demonstration, we accurately determine the refractive index profile of nanocomposite phase gratings by light and neutron diffraction measurements.
