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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 17, Iss. 23 — Nov. 9, 2009
  • pp: 20952–20958

Enhanced 2.0 μm emission and gain coefficient of transparent glass ceramic containing BaF2: Ho3+,Tm3+ nanocrystals

W. J. Zhang, Q. Y. Zhang, Q. J. Chen, Q. Qian, Z. M. Yang, J. R. Qiu, P. Huang, and Y. S. Wang  »View Author Affiliations

Optics Express, Vol. 17, Issue 23, pp. 20952-20958 (2009)

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Transparent glass ceramic containing BaF2:Ho3+,Tm3+ nanocrystals has been prepared by melt quenching and subsequent thermal treatment. The precipitation of BaF2 nanocrystals was confirmed by X-ray diffraction and high-resolution transmission electron microscopy. Intense 2.0 µm fluorescence originating from Ho3+: 5I75I8 transition was achieved upon excitation with 808 nm laser diode. A large ratio of forward Tm3+ → Ho3+ energy transfer constant to that of backward process indicated high efficient energy transfer from Tm3+(3F4) to Ho3+(5I7), benefited from the reduced ionic distances of Tm3+-Tm3+ and Tm3+-Ho3+ pairs and low phonon energy environment with the incorporation of rare-earth ions into the precipitated BaF2 nanocrystals. The results indicate that glass ceramic is a promising candidate material for 2.0 μm laser.

© 2009 OSA

OCIS Codes
(160.4670) Materials : Optical materials
(160.5690) Materials : Rare-earth-doped materials
(300.6340) Spectroscopy : Spectroscopy, infrared

ToC Category:

Original Manuscript: September 28, 2009
Revised Manuscript: October 25, 2009
Manuscript Accepted: October 28, 2009
Published: November 2, 2009

W. J. Zhang, Q. Y. Zhang, Q. J. Chen, Q. Qian, Z. M. Yang, J. R. Qiu, P. Huang, and Y. S. Wang, "Enhanced 2.0 μm emission and gain coefficient of transparent glass ceramic containing BaF2: Ho3+,Tm3+ nanocrystals," Opt. Express 17, 20952-20958 (2009)

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