讲座题目：The art of nonlinear laser interaction – structuring novel optical-mechanical-microfluidic devices in transparent glass, fiber and film
主讲人：Prof.Peter R. Herman
主持人：程亚教授
讲座时间：2017.5.16上午10:00
讲座地点：理科大楼A510报告厅
主办单位：精密光谱科学与技术国家重点实验室与科技处
报告人简介：
Peter R. Hermanreceived the B.Eng. degree (1980) in Engineering Physics at McMaster University. He earned MASc (1982) and PhD (1986) degrees studying lasers and diatomic spectroscopy in the Physics Department at the University of Toronto that followed with a post-doctoral position at the Institute of Laser Engineering in Osaka University, Japan (1987) to the study of laser-plasma physics and x-ray lasers. He joined the Department of Electrical and Computer Engineering at the University of Toronto in 1988 where he holds a full professor position. Professor Herman directs a large and collaborative research group that develops and applies laser technology and advanced beam delivery systems to control and harvest laser interactions in new frontiers of 3-D nanofabrication. Our mantra is:“We begin with light and we end with light devices.” To this end we are inventing new methods for processing internally inside optical materials that carveout highly compact and functionallightwave circuits, microfluidics, optofluidic systems, biophotonic sensors, and smart medical catheters. Our end goals are inventing new manufacturing processes and extending optical device and Lab-on-a-chip concepts towards more compact Lab-in-a-fiber and Lab-in-a-film microsystems. Professor Herman is OSA fellow, holds several patents, spun out one company (FiLaser), and has published over 300 papers in journals and conference proceedings.
http://photonics.light.utoronto.ca/laserphotonics/
报告摘要
Femtosecond laser light follows widely varying interaction pathways when focused inside of transparent materials, reacting further to powerful feedback mechanisms that seemingly counter our best intentions to channel laser energy into a preferred and reproducible process. The presentation examines fundamental interactions towards the practical means for managing laser processes in transparent glasses, including fibres and thin film, where one can exploit the concepts of microexplosions, photochemistry, interferometric cleaving disks, and self-focusing filamentation that underpins controllable means for fabricating new types of optical, micromechanical, and nanofluidic devices. We examine scientific principles towards engineering of three-dimensional (3D) optical circuits, 3D microfluidic networks, and cantilevers that enable highly functional and compact devices to form and integrate seamlessly for a wide base of advanced applications. We survey opportunities for smart catheters, fiber-cladding photonics, lab-in-a-fiber, and lab-in-a-film, demonstrating the unexplored future potential opened by the ‘magic’ of nonlinear laser interaction physics.
