Excited-state dynamics and enhanced near-IR emission in Nd3+-structurally activated aluminophosphate glass containing silver and tin

José A. Jiménez, Sergiy Lysenko, Mariana Sendova, Chunqing Zhao

Research output: Contribution to journalArticle

Abstract

The excited state dynamics and near-infrared (IR) luminescent properties of Nd3+-doped melt-quenched aluminophosphate glass containing silver and tin have been investigated under pulsed-laser and steady-state excitation at 266 nm. A comparative emission dynamics assessment was carried out concerning Ag and Sn dopants in the glass matrix with and without neodymium. The data indicates an effective non-radiative energy transfer from single Ag+ ions and Sn centers as donors to neodymium activator ions which ultimately populates the 4F3/2 emitting state in Nd3+. As a result, the near-IR (1.06 μm) emission from the 4F3/2 metastable state in Nd3+ is enhanced about an order of magnitude relative to a purely Nd-doped reference. In addition, the 4F3/2 excited state lifetime becomes significantly longer in the presence of silver and tin. A comparative 31P nuclear magnetic resonance spectroscopy study suggests glass depolymerization upon neodymium doping. It is proposed that a structural alteration might be linked to the established non-radiative energy transfer.

Original languageEnglish (US)
Pages (from-to)88-92
Number of pages5
JournalOptical Materials
Volume46
DOIs
StatePublished - Aug 1 2015

Fingerprint

Neodymium
Tin
neodymium
Silver
Excited states
tin
silver
Infrared radiation
Glass
Energy transfer
glass
energy transfer
Doping (additives)
Ions
excitation
depolymerization
Depolymerization
magnetic resonance spectroscopy
Pulsed lasers
metastable state

Keywords

  • Energy transfer
  • Glasses
  • Photoluminescence
  • Rare-earths

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Computer Science(all)
  • Atomic and Molecular Physics, and Optics
  • Spectroscopy
  • Physical and Theoretical Chemistry
  • Organic Chemistry
  • Inorganic Chemistry
  • Electrical and Electronic Engineering

Cite this

Excited-state dynamics and enhanced near-IR emission in Nd3+-structurally activated aluminophosphate glass containing silver and tin. / Jiménez, José A.; Lysenko, Sergiy; Sendova, Mariana; Zhao, Chunqing.

In: Optical Materials, Vol. 46, 01.08.2015, p. 88-92.

Research output: Contribution to journalArticle

Jiménez, José A. ; Lysenko, Sergiy ; Sendova, Mariana ; Zhao, Chunqing. / Excited-state dynamics and enhanced near-IR emission in Nd3+-structurally activated aluminophosphate glass containing silver and tin. In: Optical Materials. 2015 ; Vol. 46. pp. 88-92.
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