Material Functionalization with Femtosecond Lasers
飞秒激光对材料表面功能化处理
Chunlei Guo（郭春雷）
ABSRACT
As a powerful tool for high-precision material processing and functionalization, femtosecond lasers can pattern materials that are extremely hard to treat and produce surface textures down to nanoscale, which often resemble those found in nature and are far smaller than the light wavelength. In this talk, I will discuss some of our recent advancements in femtosecond laser micro- and nano-processing, including the resulting surface structures, a quest for laser lithography, the structural formation dynamics, and the drastically altered surface functionalities. I will also discuss a range of ensuing applications.
飞秒激光已成为材料高精度加工和功能化的有力工具。飞秒激光可以加工极端难处理的材料并在其表面生成纳米级纹理图案，这些纹理经常与自然界中发现的纹理相似，而且远小于光波长。本次报告，将主要介绍我们近期利用飞秒激光在微纳加工方面取得的一系列进展，包括产生的表面结构，对激光光刻的探索，结构形成动力学以及表面功能的显著改变等，同时还将介绍相关技术的后续应用。
BIOGRAPHY
Chunlei Guo is a Professor in The Institute of Optics and Physics at University of Rochester. He also helped found an international lab for lasers and Photonics at CIOMP, China. His research is in the area of femtosecond laser-matter interactions, and his work at Rochester has led to the discoveries of a range of highly functionalized materials, including the so-called black and colored metals and superhydrophillic and superhydrophobic surfaces. These discoveries can find a broad range of applications and have received extensive public interest, including being featured 4 times on The New York Times. He is a Fellow of American Physical Society and Optical Society of America. Currently, he serves as the Editor-in-Chief for the CRC Handbook of Laser Technology and Applications (2nd Edition), which is due to release in 2020 as probably the most comprehensive handbook in the field of lasers.
郭春雷教授任职于美国罗切斯特大学，他也帮助建立了中国科学院长春光机所郭春雷光子实验室。他长期致力于飞秒激光与物质的相互作用方面研究。其重要研究成果包括发现了一系列高度功能化的材料，其中包括“黑金属”、“彩色金属”以及超亲水和超疏水表面材料等。这些特性材料有着极其广阔的应用前景，因此备受关注，曾先后4次被纽约时报专题报道。郭春雷教授是美国物理学会及光学学会会士。目前，他还担任CRC《激光技术与应用手册》(第二版)的主编，该书计划在2020年出版，将有望成为激光领域最全面的指导手册。