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Title: Spectroscopic Feedback for High Density Data Storage and Micromachining

Patent ·
OSTI ID:953667
 [1];  [1];  [1];  [1]
  1. Livermore, CA
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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.

Research Organization:
Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
W-7405-ENG-48
Assignee:
Lawrence Livermore National Security, LLC (Livermore, CA)
Patent Number(s):
7,426,028
Application Number:
11/375,882
OSTI ID:
953667
Country of Publication:
United States
Language:
English

References (3)

Morphology of femtosecond laser-induced structural changes in bulk transparent materials journal March 2004
Experimental Studies of Laser-Induced Breakdown in Transparent Dielectrics report September 2003
Real-time control of ultrafast laser micromachining by laser-induced breakdown spectroscopy journal January 2004

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