Structural Developments in Ion-Implanted Sol-Gel Films and Resulting Glasses

离子注入溶胶-凝胶薄膜和所得玻璃的结构发展

• 批准号: 0605905
• 负责人: John Kieffer
• 金额: --
• 依托单位: Regents of the University of Michigan - Ann Arbor
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2006
• 资助国家: 美国
• 起止时间: 2006-09-01 至 2009-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0605905&HistoricalAwards=false
• 关键词: Structural; Developments; Ion; Implanted; Sol

NON-TECHNICAL DESCRIPTION: Planar optical waveguides are the basis for devices used in optical signal processing and telecommunication. To fabricate such devices, small channels with particular light-guiding and light-amplifying properties are created on a glass plate, by changing its chemical composition along specific patterns near the surface. Adding elements that are most effective from optical and photonic points of view is curbed due to poor compatibility with the glass structure. This research is to develop a novel technology for the eventual manufacture of planar waveguides, based on ion beam implantation of the optically active elements into a precursor of the glass. A new manufacturing process is expected to improve the performance of planar waveguide devices manifold and help facilitate new technologies, such as optical computers and data storage. In carrying out this project, future engineers and scientists are trained in glass science and computational materials research. The findings of this work will enter the public domain and contribute to the body of information used in public and industry outreach activities.TECHNICAL DETAILS: The focus of the proposed investigation is the insertion of atomic and nano-sized particles into a glass matrix to achieve particular functions, such as light guiding or photoluminescence. Non-equilibrium processing routes, combining low-temperature sol-gel synthesis and ion implantation, will be explored to create porous and dense amorphous structures that can accommodate optically active embedded species at concentrations and spatial distributions that significantly improve the performance of planar optical waveguides compared to current capabilities. The fundamental aspects of how precursor chemistry, implantation doses, and processing schedules affect the structure and properties of the waveguide materials will be investigated through in-situ structural characterization using concurrent Brillouin and Raman light scattering measurements, complemented by MD simulations, Rutherford backscattering, secondary ion mass spectroscopy, and photoluminescence measurements. This research leverages the NSF-sponsored acquisition of a new ion implanter at the University of Michigan, which provides the ability to implant rare-earth elements at sufficiently high energies.

非技术描述：平面光波导是光信号处理和电信中使用的器件的基础。为了制造这样的器件，通过改变靠近表面的特定图案的化学成分，在玻璃板上创建具有特殊导光和光放大特性的小通道。由于与玻璃结构的兼容性差，添加从光学和光子观点来看最有效的元件受到限制。这项研究旨在开发一种基于离子束注入光学活性元件到玻璃前驱体中的最终制造平面光波导的新技术。一种新的制造工艺有望提高平面波导器件歧管的性能，并有助于促进新技术的发展，如光学计算机和数据存储。在实施这一项目时，未来的工程师和科学家将接受玻璃科学和计算材料研究方面的培训。这项工作的发现将进入公共领域，并有助于在公共和行业外展活动中使用的信息体。技术细节：拟议的调查重点是将原子和纳米尺寸的颗粒插入玻璃基质中，以实现特定功能，如导光或光致发光。将探索结合低温溶胶-凝胶合成和离子注入的非平衡处理路线，以创建多孔和致密的非晶态结构，该结构可以容纳具有光学活性的嵌入物种的浓度和空间分布，与当前的能力相比，显著提高了平面光波导的性能。通过同时使用布里渊和拉曼光散射测量的现场结构表征，并辅以分子动力学模拟、卢瑟福背散射、二次离子质谱学和光致发光测量，将研究前体化学、注入剂量和加工时间表如何影响波导材料的结构和性能的基本方面。这项研究利用了美国国家科学基金会资助的密歇根大学一种新型离子注入机的收购，该注入机提供了以足够高的能量注入稀土元素的能力。