Energy transfer from Cr to Nd in substitutional crystal Y3GaxAl5-x O12 codoped with Nd and Cr

Kazuki Takagi, Mitsuo Yamaga, Encarnacion G. Villora, Kiyoshi Shimamura, Kazuo Hasegawa, Hiroshi Ito, Shintaro Mizuno, Yasuhiko Takeda, Thomas P J Han

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Garnet crystals codoped with Nd3+ and Cr3+ ions are a candidate for solar-pumped laser materials. Substitutional disordered crystals Y3GaxAl5-xO12 were prepared to improve the pumping efficiency of Nd3+ luminescence and energy transfer from Cr3+ to Nd3+ ions. The substitutional disordered crystal host produced inhomogeneous broadening of the Nd3+ and Cr3+ optical spectra. Enhancement of overlapping between the Cr3+ absorption bands and the solar spectrum, and between the Cr3+ luminescence bands and the Nd3+ absorption lines led to the increases of the pumping efficiency and the energy transfer rates, respectively. The excitation spectrum of the Nd3+ luminescence, the nonexponential decay curves of the Cr3+ luminescence, and the quantum yields of the Cr3+ and Nd3+ luminescence have given evidence on the energy transfer from Cr3+ to Nd3+ ions.

LanguageEnglish
Pages65-71
Number of pages7
JournalJournal of Luminescence
Volume169
Issue numberPart A
Early online date1 Sep 2015
DOIs
Publication statusPublished - 1 Jan 2016

Fingerprint

Energy Transfer
Luminescence
Energy transfer
energy transfer
luminescence
Crystals
crystals
Ions
pumping
solar-pumped lasers
ions
solar spectra
laser materials
Garnets
Quantum yield
garnets
optical spectrum
Absorption spectra
Lasers
absorption spectra

Keywords

  • chromium
  • energy transfer
  • inhomogeneous broadening
  • neodymium
  • substitutional garnet crystal

Cite this

Takagi, K., Yamaga, M., Villora, E. G., Shimamura, K., Hasegawa, K., Ito, H., ... Han, T. P. J. (2016). Energy transfer from Cr to Nd in substitutional crystal Y3GaxAl5-x O12 codoped with Nd and Cr. Journal of Luminescence, 169(Part A), 65-71. https://doi.org/10.1016/j.jlumin.2015.08.044
Takagi, Kazuki ; Yamaga, Mitsuo ; Villora, Encarnacion G. ; Shimamura, Kiyoshi ; Hasegawa, Kazuo ; Ito, Hiroshi ; Mizuno, Shintaro ; Takeda, Yasuhiko ; Han, Thomas P J. / Energy transfer from Cr to Nd in substitutional crystal Y3GaxAl5-x O12 codoped with Nd and Cr. In: Journal of Luminescence. 2016 ; Vol. 169, No. Part A. pp. 65-71.
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title = "Energy transfer from Cr to Nd in substitutional crystal Y3GaxAl5-x O12 codoped with Nd and Cr",
abstract = "Garnet crystals codoped with Nd3+ and Cr3+ ions are a candidate for solar-pumped laser materials. Substitutional disordered crystals Y3GaxAl5-xO12 were prepared to improve the pumping efficiency of Nd3+ luminescence and energy transfer from Cr3+ to Nd3+ ions. The substitutional disordered crystal host produced inhomogeneous broadening of the Nd3+ and Cr3+ optical spectra. Enhancement of overlapping between the Cr3+ absorption bands and the solar spectrum, and between the Cr3+ luminescence bands and the Nd3+ absorption lines led to the increases of the pumping efficiency and the energy transfer rates, respectively. The excitation spectrum of the Nd3+ luminescence, the nonexponential decay curves of the Cr3+ luminescence, and the quantum yields of the Cr3+ and Nd3+ luminescence have given evidence on the energy transfer from Cr3+ to Nd3+ ions.",
keywords = "chromium , energy transfer, inhomogeneous broadening, neodymium, substitutional garnet crystal",
author = "Kazuki Takagi and Mitsuo Yamaga and Villora, {Encarnacion G.} and Kiyoshi Shimamura and Kazuo Hasegawa and Hiroshi Ito and Shintaro Mizuno and Yasuhiko Takeda and Han, {Thomas P J}",
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Takagi, K, Yamaga, M, Villora, EG, Shimamura, K, Hasegawa, K, Ito, H, Mizuno, S, Takeda, Y & Han, TPJ 2016, 'Energy transfer from Cr to Nd in substitutional crystal Y3GaxAl5-x O12 codoped with Nd and Cr' Journal of Luminescence, vol. 169, no. Part A, pp. 65-71. https://doi.org/10.1016/j.jlumin.2015.08.044

Energy transfer from Cr to Nd in substitutional crystal Y3GaxAl5-x O12 codoped with Nd and Cr. / Takagi, Kazuki; Yamaga, Mitsuo; Villora, Encarnacion G.; Shimamura, Kiyoshi; Hasegawa, Kazuo; Ito, Hiroshi; Mizuno, Shintaro; Takeda, Yasuhiko; Han, Thomas P J.

In: Journal of Luminescence, Vol. 169, No. Part A, 01.01.2016, p. 65-71.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Energy transfer from Cr to Nd in substitutional crystal Y3GaxAl5-x O12 codoped with Nd and Cr

AU - Takagi, Kazuki

AU - Yamaga, Mitsuo

AU - Villora, Encarnacion G.

AU - Shimamura, Kiyoshi

AU - Hasegawa, Kazuo

AU - Ito, Hiroshi

AU - Mizuno, Shintaro

AU - Takeda, Yasuhiko

AU - Han, Thomas P J

PY - 2016/1/1

Y1 - 2016/1/1

N2 - Garnet crystals codoped with Nd3+ and Cr3+ ions are a candidate for solar-pumped laser materials. Substitutional disordered crystals Y3GaxAl5-xO12 were prepared to improve the pumping efficiency of Nd3+ luminescence and energy transfer from Cr3+ to Nd3+ ions. The substitutional disordered crystal host produced inhomogeneous broadening of the Nd3+ and Cr3+ optical spectra. Enhancement of overlapping between the Cr3+ absorption bands and the solar spectrum, and between the Cr3+ luminescence bands and the Nd3+ absorption lines led to the increases of the pumping efficiency and the energy transfer rates, respectively. The excitation spectrum of the Nd3+ luminescence, the nonexponential decay curves of the Cr3+ luminescence, and the quantum yields of the Cr3+ and Nd3+ luminescence have given evidence on the energy transfer from Cr3+ to Nd3+ ions.

AB - Garnet crystals codoped with Nd3+ and Cr3+ ions are a candidate for solar-pumped laser materials. Substitutional disordered crystals Y3GaxAl5-xO12 were prepared to improve the pumping efficiency of Nd3+ luminescence and energy transfer from Cr3+ to Nd3+ ions. The substitutional disordered crystal host produced inhomogeneous broadening of the Nd3+ and Cr3+ optical spectra. Enhancement of overlapping between the Cr3+ absorption bands and the solar spectrum, and between the Cr3+ luminescence bands and the Nd3+ absorption lines led to the increases of the pumping efficiency and the energy transfer rates, respectively. The excitation spectrum of the Nd3+ luminescence, the nonexponential decay curves of the Cr3+ luminescence, and the quantum yields of the Cr3+ and Nd3+ luminescence have given evidence on the energy transfer from Cr3+ to Nd3+ ions.

KW - chromium

KW - energy transfer

KW - inhomogeneous broadening

KW - neodymium

KW - substitutional garnet crystal

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