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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 19, Iss. 3 — Jan. 31, 2011
  • pp: 1836–1841

White light generation in Dy3+-doped oxyfluoride glass and transparent glass-ceramics containing CaF2 nanocrystals

P. Babu, Kyoung Hyuk Jang, Ch. Srinivasa Rao, Liang Shi, C. K. Jayasankar, Víctor Lavín, and Hyo Jin Seo  »View Author Affiliations


Optics Express, Vol. 19, Issue 3, pp. 1836-1841 (2011)
http://dx.doi.org/10.1364/OE.19.001836


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Abstract

The radiative emission properties of the Dy3+ ions in an oxyfluoride glass and glass-ceramics have been studied for the generation of white light. The x-ray diffraction pattern of the glass-ceramics shows the formation of CaF2 fluorite-type nanocrystals in the glass matrix after a suitable thermal treatment of the precursor glass, whereas time-resolved optical measurements show the incorporation of the Dy3+ ions in the CaF2 nanocrystals. Intense white light has been observed when the samples are excited with 451 nm laser light. From the visible emission spectra, yellow to blue intensity ratios and the chromaticity color coordinates have been determined. All the color coordinates are found to lie in the white light region of the chromaticity color diagram.

© 2011 OSA

OCIS Codes
(160.4670) Materials : Optical materials
(160.4760) Materials : Optical properties
(160.5690) Materials : Rare-earth-doped materials
(300.6280) Spectroscopy : Spectroscopy, fluorescence and luminescence

ToC Category:
Materials

History
Original Manuscript: July 27, 2010
Revised Manuscript: January 12, 2011
Manuscript Accepted: January 13, 2011
Published: January 18, 2011

Virtual Issues
Vol. 6, Iss. 2 Virtual Journal for Biomedical Optics

Citation
P. Babu, Kyoung Hyuk Jang, Ch. Srinivasa Rao, Liang Shi, C. K. Jayasankar, Víctor Lavín, and Hyo Jin Seo, "White light generation in Dy3+-doped oxyfluoride glass and transparent glass-ceramics containing CaF2 nanocrystals," Opt. Express 19, 1836-1841 (2011)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-19-3-1836


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