US-Egypt Cooperative Research: Development of High Optical Quality Tellurite Glasses of Potential Non-Linear Applications and Their Structure

描述：该奖项旨在支持纽约州立大学布法罗分校化学系和光子学研究实验室主任Paras N. Prasad博士与埃及Menofia大学物理系Raouf El-Mallawany博士之间的合作项目。研究的目的是开发和研究基于碲酸盐玻璃的新材料，以发掘其非线性应用的潜力。本研究将包括：利用不同的稀土和过渡金属氧化物制备高光学质量的碲酸盐玻璃（块状和纤维状），以获得高折射率和低色散的玻璃；光学测量包括不同波长折射率和红外透射波长的测量；热和弹性表征测量包括：所制玻璃的玻璃转变、结晶温度、稳定性、纵向、剪切、体积、杨氏模量、泊松比、德拜温度，以及x射线衍射（XRD）、透射电镜等结构测定。项目范围：该项目支持两名知名的科学家之间的合作，他们拥有这项研究的专业知识和资源。该课题对非晶材料领域具有重要意义，并在不断扩大的光子学领域具有应用价值。对碲酸盐玻璃的了解将对压力传感器和光学材料的发展产生影响。国际团队非常适合这个项目，因为埃及科学家在合成不同成分的碲酸盐玻璃方面拥有丰富的专业知识，而美国科学家在材料表征方面拥有丰富的专业知识。这个项目有潜力通过开发可以广泛应用的新材料使双方都受益匪浅。该项目将促进对参与这项合作工作的埃及和美国研究生的培训。该项目符合INT在共同感兴趣的领域支持合作研究的目标。

0115000PrasadDescription: This award is to support a collaborative project between Dr. Paras N. Prasad, Department of Chemistry and Director of Photonics Research Laboratory, State University of New York at Buffalo, Buffalo, New York and Dr. Raouf El-Mallawany, Department of Physics, Menofia University, Shebin El-Kom, Egypt. The objectives of the research are to develop and study new material based on tellurite glasses for their potential for non-linear applications. The study will include: Preparation of high optical quality of tellurite glasses (in the bulk & fiber form) by using new different rare earth and transition metal oxides in order to get a glass with high refractive index and low dispersion, optical measurements which include the measurements of the refractive index at different wavelengths and the wavelength of IR transmission, thermal & Elastic characterization measurements which include: glass transformation, crystallization temperatures, stability, longitudinal, shear, bulk, Young's moduli, Poisson's ratio and Debye temperature of the produced glasses, and structural determinations like x-ray Diffraction (XRD), transmission electron microscope.Scope: The project supports collaboration between two well-recognized scientists who have the expertise and resources for this research. The topic is important to the field of amorphous materials, and has applications in the expanding arena of photonics. Understanding of tellurite glasses will have an impact in the development of pressure sensors and optical materials. The international team is quite suited for the project, as the Egyptian scientist has significant expertise in the synthesis of tellurite glasses of different compositions, and the US scientist has vast expertise in material characterization. This project has the potential to greatly benefit both sides by developing new materials that can have wide applications. The project will promote training of Egyptian and US graduate students who will participate in this collaborative work. This project meets the INT objective of supporting collaborative research in areas of mutual interest.