Dysprosium-doped LiNbO3 crystal. Optical properties and effect of temperature on fluorescence dynamics

✍ Scribed by G Dominiak-Dzik; W Ryba-Romanowski; M.N Palatnikov; N.V Sidorov; V.T Kalinnikov

• Publisher: Elsevier Science
• Year: 2004
• Tongue: English
• Weight: 152 KB
• Volume: 704
• Category: Article
• ISSN: 0022-2860
• DOI: 10.1016/j.molstruc.2004.01.063

✦ Synopsis

Optical properties of trivalent dysprosium doped lithium niobate crystal Dy:LiNbO 3 are investigated at various temperatures. Polarised absorption, emission and lifetime measurements have been performed. The Judd -Ofelt theory, extended to anisotropic system, has been applied to evaluate the intensity parameters (V 2 ; V 4 ; V 6 ), radiative transition rates A r ; radiative lifetimes t r ; and branching ratios b: The predicted values of t r is compared with the experimental value for the 4 F 9/2 fluorescent level. Lifetimes and fluorescence dynamics were examined as a function of temperature and concentration of Dy 3þ ions.