Resonance between electronic and vibronic levels of Tm3+ in yttrium aluminium garnet
Identifieur interne : 002A81 ( Main/Exploration ); précédent : 002A80; suivant : 002A82Resonance between electronic and vibronic levels of Tm3+ in yttrium aluminium garnet
Auteurs : A. Lupei [Roumanie] ; V. Lupei [Roumanie]Source :
- Journal of physics. Condensed matter [ 0953-8984 ] ; 1997.
Descripteurs français
- Pascal (Inist)
English descriptors
- KwdEn :
Abstract
An attempt to explain some of the Tm3+ spectra features in YAG in terms of the splitting of the zero-photon lines due to the even part of the linear vibronic interaction Hamiltonian with a single active phonon mode in the cases of resonance or quasi-resonance between a pure electronic and vibronic level is presented. The observed features in absorption and emission spectra are discussed and the active mode is identified. The experimental splittings and intensities allow estimation of the vibronic coupling matrix elements of about 4-5 cm-1.
Affiliations:
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Le document en format XML
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<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Absorption spectra</term>
<term>Aluminium oxides</term>
<term>Electronic transition</term>
<term>Emission spectra</term>
<term>Impurity states</term>
<term>Resonance</term>
<term>Theoretical study</term>
<term>Thulium additions</term>
<term>Vibronic energy level</term>
<term>YAG</term>
<term>Yttrium oxides</term>
<term>Zero phonon process</term>
</keywords>
<keywords scheme="Pascal" xml:lang="fr"><term>Etude théorique</term>
<term>Etat impureté</term>
<term>Résonance</term>
<term>Grenat aluminium yttrium</term>
<term>Spectre absorption</term>
<term>Spectre émission</term>
<term>Transition électronique</term>
<term>Niveau énergie vibronique</term>
<term>Addition thulium</term>
<term>Processus zéro phonon</term>
<term>Yttrium oxyde</term>
<term>Aluminium oxyde</term>
<term>7155H</term>
<term>7170</term>
<term>Y3Al5O12:Tm</term>
<term>Al O Y</term>
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<front><div type="abstract" xml:lang="en">An attempt to explain some of the Tm<sup>3+</sup>
spectra features in YAG in terms of the splitting of the zero-photon lines due to the even part of the linear vibronic interaction Hamiltonian with a single active phonon mode in the cases of resonance or quasi-resonance between a pure electronic and vibronic level is presented. The observed features in absorption and emission spectra are discussed and the active mode is identified. The experimental splittings and intensities allow estimation of the vibronic coupling matrix elements of about 4-5 cm<sup>-1</sup>
.</div>
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<name sortKey="Lupei, V" sort="Lupei, V" uniqKey="Lupei V" first="V." last="Lupei">V. Lupei</name>
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