US-France Cooperative Research: Computational Investigation of the Mechanisms of Nanoparticles Generation in Laser Ablation

0340614支吉列在这三年的美国-法国合作研究奖，弗吉尼亚大学的Leonid Zhigilei和Aix-Marseille II大学的Tatiana Itina将对激光烧蚀中纳米颗粒生成机制进行计算研究。具体来说，他们的目标是（1）开发一个先进的多尺度模型的过程，导致纳米粒子形成的激光烧蚀的有机材料和金属和（2）进行全面的计算研究的参数控制的速度，尺寸和空间分布的演变的喷射粒子在烧蚀羽流。了解激光烧蚀过程中纳米粒子的生成机理，对于优化实验条件、制备纳米材料或沉积催化用金属粒子具有重要意义。 该项目利用法国在激光和计算研究方面的实验专长，将计算材料科学的研究和教育结合起来，并包括培训国际多学科研究的研究生。 研究人员计划将他们的研究成果整合到材料科学建模的研究生课程中。 国家科学基金会（NSF）和国家科学研究中心（CNRS）共同支持该项目。 NSF将支付美国研究员和研究生访问法国的费用。 CNRS将为法国研究者访问美国提供支持。

0340614ZhigileiIn this three-year U.S.-France cooperative research award, Leonid Zhigilei of the University of Virginia and Tatiana Itina of the University of Aix-Marseille II will conduct computational investigation of the mechanisms of nanoparticle generation in laser ablation. Specifically, their goals are to (1) develop an advanced multiscale model of processes leading to nanoparticle formation in laser ablation of organic materials and metals and (2) perform comprehensive computational investigations of the parameters that control the evolution of the velocity, size, and spatial distributions of the ejected particles in the ablation plume. Understanding the mechanisms of nanoparticle generation in laser ablation is important for optimizing experimental conditions and for nano material fabrication or deposition of metal particles for catalysis. The project takes advantage of French experimental expertise in lasers and computational research.The project integrates research and education in computational materials science and includes training of graduate students in international multidisciplinary research. The investigators plan to integrate their research results into a graduate course on modeling in materials science. The National Science Foundation (NSF) and the Centre National de la Recherche Scientifique (CNRS) jointly support this project. NSF will cover the costs of visits to France by the U.S. investigator and graduate students. The CNRS will provide support to the French investigator for visits to the United States.