High-pressure optical studies on R-line fluorescence lifetime in Al2O3:V2+ |
| |
| Authors: | Branislav R Jovanić Božidar Radenković Marijana Despotović-Zrakić Zorica Bogdanović Dušan Barać |
| |
| Institution: | 1. Institute of Physics, Laboratory for Multidisciplinary Research, University of Belgrade, Zemun, Serbia;2. Faculty of Organizational Sciences, Laboratory for Simulation, University of Belgrade, Belgrade, Serbia |
| |
| Abstract: | The effect of high hydrostatic pressure (up to 10.3?GPa) at room temperature on fluorescence lifetime τ for R line (2E→4A2 transition) in ruby Al2O3:V2+ was studied. The performed studies show the linear increase of τ with increasing pressure. At 10.3?GPa, τ is about 1.36 times higher than at ambient pressure. The obtained trend was explained by a model which considered the effect of pressure on τ through an induced change of line position, inter-ionic distance, compressibility, and molecular polarizability. A good agreement between the calculated and experimental values for τ was obtained. |
| |
| Keywords: | Al2O3:V2+ high pressure lifetime fluorescence optical properties |
|
|
