Energy Deposition and Transport in Laser-Material Interactions

短脉冲激光器的使用产生了新技术， 制造复杂的微结构， 先进的材料。这些技术使得 对微电子产业的影响。提高 设计和质量控制这些技术，研究 提出了一个计划，以了解能量沉积 短脉冲激光与物质相互作用过程中的输运 和微观结构。这项工作将发展得更加适当 能量沉积和输运的宏观模型 通过表征微观运输过程， 能量载体（例如电子和声子）的相互作用。 亚皮秒激光加热实验研究 也将进行。研究的目的 计划是为了更好地了解 不同时间尺度下的基本传热机制 并建立建模分析框架 复杂微结构的快速激光加热。

The use of short-pulse lasers has generated new techniques to fabricate sophisticated microstructures and to synthesize advanced materials. These techniques have made tremendous impacts on the microelectronics industry. To improve the design and quality control of these techniques, a research plan is proposed to gain understanding of energy deposition and transport during short-pulse laser-material interactions and in microstructures. The work will develop more appropriate macroscopic models for energy deposition and transport processes by characterizing microscopic transport and interactions of energy carriers (e.g. electrons and phonons). Experimental investigation of sub-picosecond laser heating will also be carried out. The objective of the research program is to achieve a better understanding of the fundamental heat transfer mechanisms in different time scale regimes and to establish analytical framework for modelling fast laser heat of complex microsctructures.