dc.contributor.author | Grinberg, M. | en |
dc.contributor.author | Mandelis, Andreas | en |
dc.contributor.author | Fjeldsted, K. | en |
dc.contributor.author | Othonos, Andreas S. | en |
dc.creator | Grinberg, M. | en |
dc.creator | Mandelis, Andreas | en |
dc.creator | Fjeldsted, K. | en |
dc.creator | Othonos, Andreas S. | en |
dc.date.accessioned | 2019-12-02T15:30:25Z | |
dc.date.available | 2019-12-02T15:30:25Z | |
dc.date.issued | 1993 | |
dc.identifier.uri | http://gnosis.library.ucy.ac.cy/handle/7/58699 | |
dc.description.abstract | Experimental spectroscopic and time-resolved luminescence measurements of the Ti3+:Al2O3 crystalline system have been performed. The absorption and fluorescence spectra obtained have led to a reconsideration of prevailing theoretical models for the radiative relaxation process in Ti:sapphire crystals. A realistic, two-dimensional configuration-coordinate space model has been constructed to describe the Jahn-Teller distortion of the system. Consideration of the nonlinear contributions to the electron-lattice coupling potential was found to contribute little to the second luminescence emission maximum, thus indicating that the electron-phonon interaction is essentially linear in the ground state. The main effect of the nonlinearity was found to be in the value of the nonradiative activation energy. The spin-orbit coupling was also incorporated in the model and was shown to be responsible for the nonradiative transitions in Ti3+:Al2O3, while the phonon structure of the ground (2T2) state of the system results from both spin-orbit and nonlinear coupling with the lattice. © 1993 The American Physical Society. | en |
dc.source | Physical Review B | en |
dc.source.uri | https://www.scopus.com/inward/record.uri?eid=2-s2.0-0001028982&doi=10.1103%2fPhysRevB.48.5922&partnerID=40&md5=c789c8a4ef174b33ef50741d70a26ddc | |
dc.title | Spectroscopy and analysis of radiative and nonradiative processes in Ti3+:Al2O3 crystals | en |
dc.type | info:eu-repo/semantics/article | |
dc.identifier.doi | 10.1103/PhysRevB.48.5922 | |
dc.description.volume | 48 | |
dc.description.issue | 9 | |
dc.description.startingpage | 5922 | |
dc.description.endingpage | 5934 | |
dc.author.faculty | Σχολή Θετικών και Εφαρμοσμένων Επιστημών / Faculty of Pure and Applied Sciences | |
dc.author.department | Τμήμα Φυσικής / Department of Physics | |
dc.type.uhtype | Article | en |
dc.description.notes | <p>Cited By :39</p> | en |
dc.contributor.orcid | Othonos, Andreas S. [0000-0003-0016-9116] | |
dc.gnosis.orcid | 0000-0003-0016-9116 | |