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Method and apparatus for improving the quality and efficiency of ultrashort-pulse laser machining

United States Patent

July 31, 2001
View the Complete Patent at the US Patent & Trademark Office
Lawrence Livermore National Laboratory - Visit the Industrial Partnerships Office Website
A method and apparatus for improving the quality and efficiency of machining of materials with laser pulse durations shorter than 100 picoseconds by orienting and maintaining the polarization of the laser light such that the electric field vector is perpendicular relative to the edges of the material being processed. Its use is any machining operation requiring remote delivery and/or high precision with minimal collateral dames.
Stuart; Brent C. (Fremont, CA), Nguyen; Hoang T. (Livermore, CA), Perry; Michael D. (Livermore, CA)
The Regents of the University of California (Oakland, CA)
09/ 302,021
April 29, 1999
The United States Government has rights in this invention pursuant to Contract No. W-7405-ENG-48 between the United States Department of Energy and the University of California for the operation of Lawrence Livermore National Laboratory.