Evidence for a Double Doping Regime in Nd:YAG nanopowders

Maria Luisa Saladino, Eugenio Caponetti, Mario Berrettoni, Marco Giorgetti

Risultato della ricerca: Article

2 Citazioni (Scopus)

Abstract

Nanopowders of Yttrium Aluminium Garnet doped with neodymium (Nd:YAG) were investigated by X-Ray Absorption Fine Structure (XAFS) at the Nd LIII edge in the 1.3-20.8% doping range. XANES spectra appear similar in the full range of the Nd concentration. However, a significant decrease in the white line intensity of XANES is revealed as the quantity of Nd doping ions increases. Plotting the white line intensity as a function of Nd doping ions reveals two linear trends with two different slopes, identifying a threshold value where the neodymium concentration reaches 5 at.% This experimental finding provides support for the existence of a double doping regime in Nd:YAG nanopowders.
Lingua originaleEnglish
pagine (da-a)1572-1579
Numero di pagine8
RivistaJournal of Materials Science
Volume44
Stato di pubblicazionePublished - 2009

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Doping (additives)
Neodymium
Ions
Garnets
X ray absorption
Yttrium
Aluminum

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

Cita questo

Evidence for a Double Doping Regime in Nd:YAG nanopowders. / Saladino, Maria Luisa; Caponetti, Eugenio; Berrettoni, Mario; Giorgetti, Marco.

In: Journal of Materials Science, Vol. 44, 2009, pag. 1572-1579.

Risultato della ricerca: Article

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abstract = "Nanopowders of Yttrium Aluminium Garnet doped with neodymium (Nd:YAG) were investigated by X-Ray Absorption Fine Structure (XAFS) at the Nd LIII edge in the 1.3-20.8{\%} doping range. XANES spectra appear similar in the full range of the Nd concentration. However, a significant decrease in the white line intensity of XANES is revealed as the quantity of Nd doping ions increases. Plotting the white line intensity as a function of Nd doping ions reveals two linear trends with two different slopes, identifying a threshold value where the neodymium concentration reaches 5 at.{\%} This experimental finding provides support for the existence of a double doping regime in Nd:YAG nanopowders.",
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AU - Caponetti, Eugenio

AU - Berrettoni, Mario

AU - Giorgetti, Marco

PY - 2009

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AB - Nanopowders of Yttrium Aluminium Garnet doped with neodymium (Nd:YAG) were investigated by X-Ray Absorption Fine Structure (XAFS) at the Nd LIII edge in the 1.3-20.8% doping range. XANES spectra appear similar in the full range of the Nd concentration. However, a significant decrease in the white line intensity of XANES is revealed as the quantity of Nd doping ions increases. Plotting the white line intensity as a function of Nd doping ions reveals two linear trends with two different slopes, identifying a threshold value where the neodymium concentration reaches 5 at.% This experimental finding provides support for the existence of a double doping regime in Nd:YAG nanopowders.

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