Optical and spectral characterization of
β
N.Q. Wang; X.J. Li; E.Y.B. Pun; H. Lin; D.L. Yang
π
Article
π
2009
π
Elsevier Science
π
English
β 470 KB
Er 3+ /Yb 3+ -codoped aluminum oxide (Al 2 O 3 ) modified tellurite ceramics have been prepared by hightemperature melting. Judd-Ofelt parameters of Eu 3+ , which was introduced in 15%Na 2 O-15%Al 2 O 3 -70%TeO 2 (NAT) ceramic system as a probe, present a medium asymmetry and covalence environment a