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

Research output: Contribution to journalArticle

15 Scopus citations

Abstract

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. © 2013 American Institute of Physics.
Original languageAmerican English
JournalJournal of Applied Physics
DOIs
StatePublished - 7 Feb 2013

Fingerprint Dive into the research topics of 'Giant enhancement of phonon-assisted one-photon excited frequency upconversion in a Nd<sup>3+</sup>-doped tellurite glass'. Together they form a unique fingerprint.

  • Cite this