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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 15, Iss. 25 — Dec. 10, 2007
  • pp: 16980–16985

Tunable luminescence of CaO-Al2O3-GeO2 glasses

Geng Lin, Bin Zhu, Shifeng Zhou, Hucheng Yang, and Jianrong Qiu  »View Author Affiliations


Optics Express, Vol. 15, Issue 25, pp. 16980-16985 (2007)
http://dx.doi.org/10.1364/OE.15.016980


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Abstract

We report tunable luminescence in oxygen-deficient CaO-Al2O3-GeO2 glasses. The glass samples were prepared by adding metal Al instead of corresponding oxide (Al2O3). Efficient blue and red emissions were observed when excited by 300 and 370 nm ultraviolet light, respectively. By adjusting the content of metal Al, we could control the quantities of the defects which results in tunable luminescence from blue to white to red. Furthermore the resultant oxygen-deficient glasses have shown bright white luminescence when the excitation wavelength tuned to 335nm. Our method opens a new route for the white light illumination.

© 2007 Optical Society of America

OCIS Codes
(160.2540) Materials : Fluorescent and luminescent materials
(160.4760) Materials : Optical properties

ToC Category:
Materials

History
Original Manuscript: August 6, 2007
Revised Manuscript: October 19, 2007
Manuscript Accepted: October 21, 2007
Published: December 4, 2007

Citation
Geng Lin, Bin Zhu, Shifeng Zhou, Hucheng Yang, and Jianrong Qiu, "Tunable luminescence of CaO-Al2O3-GeO2 glasses," Opt. Express 15, 16980-16985 (2007)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-15-25-16980


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