|
|||||
|
|
Fluorescence properties and energy transfer mechanism of Sm ion in lead telluroborate glasses |
|
| Authors: | BC Jamalaiah MV Vijaya KumarK Rama Gopal |
| Affiliation: | a Department of Physics, Sree Vidyanikethan Engineering College, Tirupati 517 102, India b Department of Physics, Changwon National University, Changwon 641-773, South Korea c Department of Physics, Rayalaseema University, Kurnool 518 002, India d Department of Physics, Sri Krishnadevaraya University, Anantapur 515 003, India |
| Abstract: | We report the fluorescence properties of Sm3+-doped lead telluroborate glasses of composition PbF2.TeO2.H3BO3.Sm2O3 as a function of Sm3+ concentration. A Judd-Ofelt scheme was used to determine the intensity parameters and radiative properties of Sm3+ ion. The emission and decay measurements were carried out at 402 nm excitation. Beyond 1.0 mol% Sm3+ concentration, the luminescence quenching is observed. The decay curves of 4G5/2 level are well fitted to a single exponential function. The evaluated radiative properties suggest that the 4G5/2 → 6H7/2 transition is responsible for reddish-orange luminescence which might be used in the development of visible lasers. |
| Keywords: | Lead telluroborate glass Sm3+ ion Judd-Ofelt Theory Fluorescence properties Energy transfer |
| 本文献已被 ScienceDirect 等数据库收录！ | |