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Ultrafast Laser Interactions with Wide Bandgap Materials


EMSL Project ID
25397

Abstract

Laser interactions with nominally transparent (wide bandgap) materials are playing increasingly important roles in several technologies and applications, including chemical analysis, semiconductor manufacture, and the use of high power lasers for X-ray production and inertial fusion. The details of how photons couple to wide bandgap materials and the consequences of these excitations such as particle emission and lattice disruption are of principle interest. Also of interest are morphological changes of a surface due to laser irradiation. This proposal focuses on experiments to help understand in more detail the nature and origin of material removal from wide bandgap materials using femtosecond lasers. We wish to rigorously test existing models and if necessary develop new ones.

Project Details

Project type
Large-Scale EMSL Research
Start Date
2007-06-01
End Date
2009-09-30
Status
Closed

Team

Principal Investigator

J. Dickinson
Institution
Washington State University

Team Members

Enamul Khan
Institution
Washington State University

Wayne Hess
Institution
Pacific Northwest National Laboratory

Alan Joly
Institution
Pacific Northwest National Laboratory