汇报题目：参加在法国斯特拉斯堡召开的欧洲国际光子光学研讨会

汇报时间：2018年5月3日(星期四)  9：00

汇报地点：科技园西五楼北A328会议室

汇报人：李江

会议名称：SPIE Photonics Europe 2018

会议时间：22-26 April 2018

会议地点：Palais de la Musique et des Congrès, Strasbourg, France

会议简介：SPIE is an international society advancing an interdisciplinary approach to the science and application of light. It serves as an advocate and liaison to political and industry associations within the European optics and photonics community, and sponsors and organises world-class technical events throughout Europe. The international society for optics and photonics provides a unique opportunity for researchers from a variety of fields to exchange ideas and techniques, and fosters discussion on fundamental aspects of laser-matter interaction and the state-of-the-art in laser materials processing among pure scientists, end users and laser manufacturers. We expect that the participation would play an important role not only for understanding fundamental knowledge of laser precision microfabrication but also forecasting future technologies to be developed and the future laser market.

会议交流工作

poster: Fabrication of micro-structures by rear-side picosecond laser irradiation of two-layer PMMA

报告人：李江

参加论文信息

Title: Fabrication of micro-structures by rear-side picosecond laser irradiation of two-layer PMMA

Author: Jiang Li, Wenjun Wang*, Xuesong Mei, Aifei Pan

Abstract:Micro-structures offer superior functions such as superhydrophobicity, selfcleaning, anti-wear and drag reduction. In this paper, various microstructures were fabricated by rear-side picosecond laser irradiation of two-layer materials. The material of underlying layer was commonly commercial available ink; the material of surface layer was PMMA. The high light absorptivity of underlying material result in significantly reduced absorption depth. The laser source could therefore be regarded as plane heat source, leading to better surface morphologies after the mater-laser interaction. The results showed that convex structures were obtained at a lower laser fluence; with increase of laser fluence, a doughnut-like structures were obtained; with further rise of laser fluence, bowl-like structures would be obtained. Moreover, the size of microstructures could be tuned by adjusting laser processing parameters such as laser power, frequency and laser-mater interaction time. This method provides an insight for fabrication of functional surface.