Formation and Properties of a Novel Heavy-Metal Chalcogenide Glass Doped with a High Dysprosium Concentration
A novel heavy-metal chalcogenide glass doped with a high dysprosium ion (Dy3+) concentration was prepared by the well-established melt–quenching technique from high-purity elements. The results show that when Cadmium (Cd) is introduced into chalcogenide glass, the concentration of Dy3+ ions doped in GeGaCdS glasses is markedly increased, the thermodynamic performance improves, and the difference between Tg and Tx is >120°C. The Vickers microhardness is also modified greatly, about 245 kgf/mm2. The optical spectra indicate that all absorption and emission bands of Dy3+ are clearly observed and red-shifted with increasing Dy3+ concentration.
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Document Type: Research Article
Department of Optical Science and Engineering, School of Information Science and Engineering, Fudan University, Shanghai 200433, China
State Key Laboratory of Transient Optics & Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Science (CAS) Xi'an 710119, China
Publication date: October 1, 2009