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Journal articles
Green luminescence in silica glass: A possible indicator of subsurface fracture
Abstract : We investigate the nature of defects triggering laser damage in fused silica in subsurface fractures
in nanosecond near ultraviolet regime. Mechanical, laser induced surface flaws as well as pristine
silica surface were characterized by optical microscopy and luminescence confocal microscopy
before and after acid etching. In all cases, photoluminescence decreases with etching time
assessing the existence of defects close to the surface. Spectral analysis of the evolution of these
signals during etching allows new interpretations of the nature of precursors inducing damage.
Green luminescence around 2.25 eV is seen as a potential subsurface fracture indicator leading to
laser damage.
Cited literature [5 references]
https://hal-cea.archives-ouvertes.fr/cea-01623583
Contributor : Jerome Neauport <>
Submitted on : Wednesday, October 25, 2017 - 2:31:51 PM
Last modification on : Thursday, June 11, 2020 - 6:46:02 AM
Long-term archiving on: : Friday, January 26, 2018 - 1:49:13 PM
Contributor : Jerome Neauport <>
Submitted on : Wednesday, October 25, 2017 - 2:31:51 PM
Last modification on : Thursday, June 11, 2020 - 6:46:02 AM
Long-term archiving on: : Friday, January 26, 2018 - 1:49:13 PM
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