Acquisition of Pulsed Laser Deposition System and Associated Film Characterization Equipment

9512308将获得脉冲激光沉积(PLD)系统和辅助薄膜表征设备，并用于制备和检查磁性和光学薄膜。三个研究项目将利用PLD设施。其中一个计划旨在开发具有高度特殊织构和最佳磁性的金属磁性薄膜。作为这项工作的一部分，将制备稀土过渡金属和铁氧体的织构薄膜，并检查它们的磁性。第二个项目将利用PLD设施来探索光诱导梯度折射率形成、定制溶胶-凝胶玻璃和光沉积微孔玻璃的新方法。第三个项目围绕PLD生长的薄膜的结构和成分表征而发展。在这项工作中，激光沉积磁性薄膜的缺陷和层错密度将用透射电子显微镜(TEM)检测，并用二次离子质谱仪(SIMS)探测它们的化学计量比。%脉冲激光烧蚀允许沉积具有特殊本征特性的多种不同材料。脉冲层沉积系统将被用于合成对微波器件开发具有重要意义的新型超磁系统。它还将用于光沉积和光刻蚀处理，并在光波导和衍射光学中应用。这种仪器将使一个以本科生为主的机构中几个部门的研究人员受益。***

9512308 Cadieu A pulsed laser deposition (PLD) system and ancillary thin film characterization equipment will be acquired and used to fabricate and examine magnetic and optical films. Three research programs will make use of the PLD facility. One program aims at developing metallic magnetic films that exhibit highly specific textures and optimal magnetic properties. As part of this effort, textured films of rare earth transition metals and of ferrites will be fabricated and their magnetic properties will be examined. A second program will utilize the PLD facility to explore new approaches to photoinduced gradient index formation, tailoring sol-gel glasses, and photodeposition in microporous glass. A third program evolves around the structural and compositional characterization of the PLD-grown films. In this effort, the defect and stacking fault densities of the laser deposited magnetic films will be examined by transmission electron microscopy (TEM), and their stoichiometry will be probed by secondary ion mass spectrometry (SIMS). %%% Pulsed laser ablation allows for the deposition of a wide range of dissimilar materials with exceptional intrinsic properties. The pulsed layer deposition system will be utilized to synthesize new types of super magnet systems that are important for microwave device development. It will also be utilized for photodeposition and photopatterning processing with applications in optical waveguides and diffractive optics. The instrumentation will benefit researchers from several departments in a predominantly undergraduate institution. ***