SGER: Graded Optical Index Materials

9978584bhalls功能梯度材料（FGM）在其微观结构中发生“连续”变化，在许多电气和机械应用中很有用。为了扩大FGM在光学领域的应用，材料应在微纳米尺度上具有分级的结构-性能关系。在这个SGER提案中，PI建议使用混合氧化物材料的纳米级排序行为，从而定制和分级这类特殊材料的光电性能。在特殊的加热循环下，材料的有序程度会发生变化，从而也会影响材料的光电性能。为了实现本研究的目标，将对几种松弛型和有序无序型材料进行测试。这个想法是新颖的，以前还没有测试过用于生产非常有用和需要的光学渐变折射率陶瓷或单晶材料。拟议的工作范围确实属于新的和高风险的研究类别。如果它是成功的，这类材料的几个新的应用设想在光电领域

9978584BhallaFunctionally graded materials (FGM) with 'continuous' changes occurring in their microstructure are useful for several electrical and mechanical applications. In order to expand the usefulness of FGM in optical arena the materials should have graded structure-property relationship on the micro to nanoscale range. In this SGER proposal the PI has suggested to use the nanoscale-ordering behavior of the mixed oxide materials and thus tailoring and grading the optoelectronic properties of this special class of materials. Under special heating cycle the degree of orderedness in the material can be varied which consequently will also influence the optoelectronic properties of materials. Several relaxor and order-disorder type materials will be tested for achieving the goals of the proposed research.The idea is novel and has not been tested before to produce the highly useful and needed optical graded refractive index ceramics or single crystal materials.The scope of the proposed work does fall in the new and high-risk category of research. If it is successful several new applications of such materials are envisaged in the optoelectronic area.***