LEDucation

  Host: Rez Mani did his M.Eng in Engineering Physics from McMaster University and his PhD in satellite spectroscopic instrumentation from York University. He worked in the industry for nearly 9 years, during which he participated in many optical, laser and spectroscopic projects He returned to York University in 2011 as a researcher and a contract faculty. He currently teaches the course "Atmospheric Pollution" for the department of Natural Science at York University. He has also been collaborating with Allied Scientific Pro as a consultant for more than 6 years and recently as an application scientist for a year.

Introduction:

The webinar gives an introduction to principles of laser ablation with particular emphasis on laser cleaning application. The pros and cons of using laser cleaning as compared to other cleaning methods are described. The parameters of importance as far as the laser and the materials to be worked on are considered. Finally, a few examples of laser cleaning are given including a video demonstration of the laser cleaning system by Allied Scientific Pro in a nuclear decontamination facility.

TOPICS: 

•Introduction to laser ablation

•Laser medium

•Types of lasers used in laser ablation

•Laser cleaning

•Other competing surface cleaning techniques

•Dependence of laser ablation on material properties and laser parameters

•Femto-second, Pico-second and Nano-second regimes

•Application of laser ablation          

              I.Laser ablation for cleaning of art work and historical monuments      

              II.Laser ablation for removing paint from aircraft       

              III.Laser ablation for nuclear decontamination (case study from a nuclear decontamination facility)

•Conclusions