Giant enhancement of phonon-assisted one-photon excited frequency upconversion in a Nd3+-doped tellurite glass

M. S. Marques, L. De S. Menezes, W. Lozano B., L. R.P. Kassab, C. B. De Araújo

Resultado de la investigación: Contribución a una revistaArtículorevisión exhaustiva

18 Citas (Scopus)

Resumen

Changing the sample's temperature from 200 K to 535 K, we observed 670-fold enhancement of a phonon-assisted upconversion emission at ≈754 nm obtained from a Nd3+-doped tellurite glass excited by 5 ns laser pulses at 805 nm. A rate-equation model, including the relevant energy levels and temperature dependent transition rates, is proposed to describe the process. The results fit well with the data when one considers the nonradiative transitions contributing for the 754 nm luminescence are promoted by an effective phonon mode with energy of 700 cm-1.

Idioma originalInglés
Número de artículo053102
PublicaciónJournal of Applied Physics
Volumen113
N.º5
DOI
EstadoPublicada - 7 feb 2013

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