Method of increasing the laser damage threshold of diffraction gratings
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United States of America Patent
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Jan 8, 2013
Grant Date -
Jan 29, 2009
app pub date -
Feb 16, 2006
filing date -
Feb 22, 2005
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Expired
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Abstract
For increasing the laser damage threshold (LDT) of diffraction gratings, particularly of multi-layer dielectric diffraction (MLD) gratings, the invention proposes a method for treating a diffraction grating to be used in a high energy laser apparatus having a first laser with the steps of providing the diffraction grating, providing a second treatment laser and irradiating the diffraction grating with laser light from the second treatment laser until the laser damage threshold of the diffraction grating has increased.
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