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Spectroscopic feedback for high density data storage and micromachining

United States Patent

September 16, 2008
View the Complete Patent at the US Patent & Trademark Office
Lawrence Livermore National Laboratory - Visit the Industrial Partnerships Office Website
Optical breakdown by predetermined laser pulses in transparent dielectrics produces an ionized region of dense plasma confined within the bulk of the material. Such an ionized region is responsible for broadband radiation that accompanies a desired breakdown process. Spectroscopic monitoring of the accompanying light in real-time is utilized to ascertain the morphology of the radiated interaction volume. Such a method and apparatus as presented herein, provides commercial realization of rapid prototyping of optoelectronic devices, optical three-dimensional data storage devices, and waveguide writing.
Carr; Christopher W. (Livermore, CA), Demos; Stavros (Livermore, CA), Feit; Michael D. (Livermore, CA), Rubenchik; Alexander M. (Livermore, CA)
Lawrence Livermore National Security, LLC (Livermore, CA)
11/ 375,882
March 14, 2006
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.