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Título:
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Electron-lattice coupling in congruent Co-doped LiNbO_3 : Cr^3^+: ZnO crystal
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Autores:
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Martínez Matos, Óscar ;
Torchia, Gustavo Adrián ;
Vaveliuk, Pablo ;
Tocho, Jorge Omar
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Tipo de documento:
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texto impreso
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Editorial:
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Institute of Physics, 2001-07-30
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Dimensiones:
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application/pdf
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Nota general:
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info:eu-repo/semantics/openAccess
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Idiomas:
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Palabras clave:
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Estado = Publicado
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Materia = Ciencias: Física: Optica
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Tipo = Artículo
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Resumen:
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The importance of the role of the ion-lattice coupling in determining the energy levels of Cr^3^+ ions in congruent LiNbO_3 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 Cr^3^+ 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 hbar? = 343 cm^-1 are also reported in this work.
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En línea:
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https://eprints.ucm.es/id/eprint/25266/1/Martinez-Matos29.pdf
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