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在过去三十年中,对多种纳米结构和薄膜材料进行了拉曼 布里渊散射的研究.得到一些特征量的变化,如半高宽,峰位的改变;由此可得系列微结构参量.由于纳米(含薄膜)结构的基本特征:小,大,多,断和(相)移;即小的尺度,大的体表比,多的界面,断裂的波矢和相位的偏移的特证,在非弹性光散射谱中得到明显的展示:多种无序结构特征;三叉晶界特征;波矢断裂引发的折迭,由此形成的频隙;光学声子的带隙;相位偏移或失配在谱中的表现为过阻尼特征等.此外,本文还给出了该领域中非弹性光散射的某些概念.
In the past three decades, many kinds of nanostructures and thin films have been studied by Raman Brillouin scattering, and some characteristic changes such as full width at half maximum (FWHM) and change of peak position have been obtained. A series of microstructures Parameters. Due to the basic characteristics of nano (thin film) -containing structures: small, large, multi, break and phase shift; ie small scale, large body surface ratio, multiple interfaces, wave vector and phase offset Of the special evidence, in the inelastic light scattering spectra were clearly demonstrated: a variety of disordered structural features; trigeminal grain boundary characteristics; wave-vector fracture caused by folding, the resulting frequency gap; optical phonon band gap; The phase shift or mismatch in the spectrum is characterized by overdamping, etc. In addition, some concepts of inelastic light scattering in this field are also given.