Green luminescence in silica glass: A possible indicator of subsurface fracture - Archive ouverte HAL Access content directly
Journal Articles Applied Physics Letters Year : 2012

Green luminescence in silica glass: A possible indicator of subsurface fracture

(1, 2) , (1) , (1) , (2) , (2) , (3) , (4)
1
2
3
4

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.
Fichier principal
Vignette du fichier
1.pdf (732.88 Ko) Télécharger le fichier
Origin : Publisher files allowed on an open archive
Loading...

Dates and versions

cea-01623583 , version 1 (25-10-2017)

Identifiers

Cite

Jessica Fournier, Jérôme Neauport, Pierre Grua, Evelyne Fargin, Veronique Jubera, et al.. Green luminescence in silica glass: A possible indicator of subsurface fracture. Applied Physics Letters, 2012, 100 (11), pp.114103. ⟨10.1063/1.3693393⟩. ⟨cea-01623583⟩
226 View
208 Download

Altmetric

Share

Gmail Facebook Twitter LinkedIn More