Green luminescence in silica glass: A possible indicator of subsurface fracture
FOURNIER, Jessica
Commissariat à l'Energie Atomique et aux Energies Alternatives [CEA-CESTA]
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
See more >
Commissariat à l'Energie Atomique et aux Energies Alternatives [CEA-CESTA]
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
FOURNIER, Jessica
Commissariat à l'Energie Atomique et aux Energies Alternatives [CEA-CESTA]
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
< Reduce
Commissariat à l'Energie Atomique et aux Energies Alternatives [CEA-CESTA]
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
Language
en
Article de revue
This item was published in
Applied Physics Letters. 2012, vol. 100, n° 11, p. 114103
American Institute of Physics
English 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 ...Read more >
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.Read less <
English Keywords
Luminescence
Acids
Photoluminescence
Silica
Etching
Origin
Hal imported