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Photoinduced effects in AsSP glasses
Author(s) -
Santagneli Silvia Helena,
Messaddeq Sandra Helena,
Ribeiro Sidney José Lima,
Messaddeq Younès
Publication year - 2009
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.200982020
Subject(s) - irradiation , photoablation , scanning electron microscope , raman spectroscopy , materials science , power density , electron microscope , analytical chemistry (journal) , photochemistry , optics , chemistry , composite material , laser , power (physics) , excimer laser , physics , chromatography , quantum mechanics , nuclear physics
We report the photoinduced effects on the glass composition As 2 S 3 and As 29.6 P 7.4 S 63 when exposed to UV light. The morphology of the glass surface irradiated at different power densities was investigated by use of optical microscopy and scanning electron microscopy (SEM). A power density dependence on the photoexpansion (PE) and photoablation (PA) is observed. Raman measurement after irradiation shows the formation of AsO bonds in As 29.6 P 7.4 S 63 . Also, the appearance of PO bonds indicate the incorporation of oxygen at the glass surface during the irradiation process.