Nalin, Marcelo [UNESP]Poirier, G.Ribeiro, Sidney José Lima [UNESP]Messaddeq, Younes [UNESP]Carvalho, E. J.Cescato, L.2014-05-202014-05-202006-09-15Journal of Non-crystalline Solids. Amsterdam: Elsevier B.V., v. 352, n. 32-35, p. 3535-3539, 2006.0022-3093http://hdl.handle.net/11449/34488Changes occurring in absorption coefficients when glasses in the SbPO4-WO3 binary system were irradiated by light, at the edge of the absorption band, were measured in real time. These glasses present good thermal and optical properties and photoinduced changes in the absorption coefficients are reversible by heat treatment around 150 degrees C. Subsequent recording/erasing cycles could be made without sample degradation. The sensitivity of the induced optical changes was studied for different wavelengths, light powers and energy of light dose exposures, and for different compositions of the glasses. The changes in the absorption coefficients of the glass samples were accompanied by a color change from yellow to blue, and were also characterized by visible spectroscopy. The color changes occurred through the entire volume of the glass (similar to 2 mm thickness) for the Ar-ion laser lines at the edge of the absorption band. (c) 2006 Elsevier B.V. All rights reserved.3535-3539engphotochromic glassesoptical constants measurementsantimonyArtigo10.1016/j.jnoncrysol.2006.03.087WOS:000240706000029Acesso restrito6446047463034654299850384191781533495868807467350000-0003-3286-9440