Electron-lattice coupling in congruent co-doped LiNbO3:Cr3+:ZnO crystal
| Autor: | Torchia, Gustavo Adrián, Martínez Matos, Oscar, Vaveliuk, Pablo, Tocho, Jorge Omar |
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| Jazyk: | angličtina |
| Rok vydání: | 2001 |
| Předmět: | |
| Zdroj: | SEDICI (UNLP) Universidad Nacional de La Plata instacron:UNLP |
| Popis: | The importance of the role of the ion lattice coupling in determining the energy levels of Cr³⁺ ions in congruent LiNbO3 crystals doped with 2.9% of ZnO is demonstrated in this paper. The Racah parameters: B 533 cm 1, C 3244 cm⁻¹ and the crystal-field intensity Dq = 1527 cm⁻¹ were determined and the Tanabe-Sugano diagram was constructed. The characteristics of the absorption and the emission spectra of Cr³⁺ ions in these crystals can be explained in terms of the configurational-coordinate diagram in the harmonic approximation, with good agreement obtained. The Huang Rhys parameter S 6.86 and the lattice phonon energy hw= 343 cm⁻¹ are also reported in this work Facultad de Ciencias Exactas Centro de Investigaciones Ópticas |
| Databáze: | OpenAIRE |
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