Optical operation by sound velocities in tellurite glasses Er3+and Pr3+ ions doped

• Published in: Journal of alloys and compounds Vol. 536; no. SUPPL.1; pp. S469 - S471
• Main Authors: Ozga, K., Kityk, I.V., Reben, M., Wasylak, J., Al Zayed, N., Rakus, P., Ślęzak, A., Szota, M., Nabialek, M., Dospial, M.
• Format: Journal Article Conference Proceeding
• Language: English
• Published: Kidlington Elsevier B.V 25-09-2012; Elsevier
• Subjects: Condensed matter: electronic structure, electrical, magnetic, and optical properties; Density; Exact sciences and technology; Glass; Lasers; Nanocomposites; Nanomaterials; Nanostructure; Optical materials; Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation; Optical properties of bulk materials and thin films; Physics; Piezo-, elasto-, acoustooptical, and photoacoustic effects; Rare earth; Reheating; Second harmonic generation; Semiconductor lasers; Sound velocity; Second harmonic generation; Optical materials; Rare earth; Sound velocity; Tellurite glass; Laser pulse; Crystallization; Doping; Illumination; Photoacoustic effect
• ISSN: 0925-8388; 1873-4669
• DOI: 10.1016/j.jallcom.2011.10.024

► Nanosecond pulse treatment of TeO2–WO3–PbOxEr2O3−yPr6O11 was performed. ► Giant changes of the sound velocities were established. ► The increasing temperature favours enhanced photoinduced changes.
Glass composition TeO2–WO3–PbOxEr2O3−yPr6O11 (with x=0.30mol%, y=0.07mol%) was synthesized. These glasses possess high stability and resistance against crystallization during reheating. We have studied the changes of the sound velocities versus the power densities for the nanosecond Nd:YAG lasers operating at 532nm and 1064nm. The laser power density was successively increased up to 1GW/cm2. We have found substantial increase of the relative sound velocity (up to 0.035). These changes are stable within the few minutes after interruption of illumination which is durated up to 3min.