Studies on the mechanism of photoinduced glass manipulation

目前的研究取得了三种结果。第一个关于硫代化合物玻璃的基本原理的讨论，其中展示了光诱导的现象，第二个关于共同组合物中的光诱导的玻璃处理的讨论，如As Yy D22 Yy D23 Yy D2，以及关于Ag-containing chalcogenide玻璃中的光诱导的改变，以规范为基础，微观结构和电子状态已经通过X射线差异研究，拉曼散射，和光导体测量方法。一些新的见解被发现用于第一次尖锐的分歧峰和玻色子峰。“光调节研究揭示了带尾状态中光刺激洞的动态性，因为在共同玻璃中进行玻璃处理，我们在电子过程中获得了一些想法，而最终融合仍然开放。”对于一个实例，它已经被证明是许多电子和洞，与尾部密度相比的数量，需要玻璃处理过程。However，这些携带者如何将玻璃网络的流动性提高到仍然是特别的;含有胶原蛋白玻璃中的光诱导变形现象在目前的研究中被发现。We are now able to control the migration of Agy D1+ Agy D1 ions through electronic carriers which are excited by bandgap illumination。进一步的研究仍在进行中。

The present study has obtained three kinds of results. The first concerns about the fundamentals of chalcogenide glasses, which show photoinduced phenomena, the second about the photoinduced glass manipulation in covalent compositions such as AsィイD22ィエD2SィイD23ィエD2, and the third about the photoinduced deformation in Ag-containing chalcogenide glasses.With regard to the fundamentals, microscopic structures and electronic states have been studied through x-ray diffraction, Raman scattering, and photoconduction measurements. Some new insights are obtained for the first-sharp diffraction peak and the Boson peak. The photoconduction study has revealed the dynamics of photoexcited holes in band-tail states.For the glass manipulation in covalent glasses, we have obtained some idea upon the electronic process, while the final conclusion is still open. For instance, it has been demonstrated that many electrons and holes, the number being comparable to the tail density, are required for the glass manipulation process. However, how these carriers can give rise to the fluidity of glass networks is still speculative.The photoinduced deformation phenomenon in Ag-containing chalcogenide glasses has been discovered in the present study. We are now able to control the migration of AgィイD1+ィエD1 ions through electronic carriers which are excited by bandgap illumination. Further studies are in progress.