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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 16, Iss. 12 — Jun. 9, 2008
  • pp: 8989–8994

Enhanced cooperative quantum cutting in Tm3+-Yb3+ codoped glass ceramics containing LaF3 nanocrystals

Song Ye, Bin Zhu, Jin Luo, Jingxin Chen, Gandham Lakshminarayana, and Jianrong Qiu  »View Author Affiliations

Optics Express, Vol. 16, Issue 12, pp. 8989-8994 (2008)

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Tm3+-Yb3+ codoped transparent oxyfluoride glass ceramics containing LaF3 nanocrystals were obtained by thermal treatment on the asmade glasses. The formation of LaF3 nanocrystals and the incorporation of Tm3+ and Yb3+ into LaF3 nanocrystal lattice were confirmed by X-ray diffraction and high resolution transmission electron microscopy. Infrared quantum cutting involving Yb3+ 950–1100 nm (2F5/22F7/2) emission was achieved upon the excitation of the 1G4 energy level of Tm3+ at 468 nm. We measured the photoluminescence properties of these glass ceramics. We also investigated the thermal treatment duration dependent quantum efficiency, and found that the quantum efficiency is 13% increased for the 0.5Tm3+-4Yb3+ doped glass ceramic with a maximum value of 144%, and 16% increased for the 0.5Tm3+-8Yb3+ doped glass ceramic with a maximum value of 162%, respectively.

© 2008 Optical Society of America

OCIS Codes
(160.2540) Materials : Fluorescent and luminescent materials
(300.6340) Spectroscopy : Spectroscopy, infrared

ToC Category:

Original Manuscript: April 3, 2008
Revised Manuscript: May 21, 2008
Manuscript Accepted: May 22, 2008
Published: June 3, 2008

Song Ye, Bin Zhu, Jin Luo, Jingxin Chen, Gandham Lakshminarayana, and Jianrong Qiu, "Enhanced cooperative quantum cutting in Tm3+- Yb3+ codoped glass ceramics containing LaF3 nanocrystals," Opt. Express 16, 8989-8994 (2008)

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