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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 33, Iss. 18 — Sep. 15, 2008
  • pp: 2131–2133

Spectroscopic study of optical centers formed in Bi-, Pb-, Sb-, Sn-, Te-, and In-doped germanate glasses

M. Yu. Sharonov, A. B. Bykov, V. Petricevic, and R. R. Alfano  »View Author Affiliations


Optics Letters, Vol. 33, Issue 18, pp. 2131-2133 (2008)
http://dx.doi.org/10.1364/OL.33.002131


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Abstract

We have shown that the broadband near-IR (NIR) fluorescence recently discovered in Bi-doped glasses is not specific due solely to Bi ions. Glasses doped with different 6 p (Bi, Pb) and 5 p (Sn, Sb) ions exhibit very similar behavior characterized by four major spectral peaks observed in two-dimensional excitation–emission plots and the lifetime of metastable level of about 400 μ s . Our results challenge the existing models of optical centers in Bi-doped glasses. Point defect optical centers caused by the presence of 6 p (Bi, Pb) and 5 p (Sn, Sb) ions are proposed for the explanation of NIR emission in these laser materials.

© 2008 Optical Society of America

OCIS Codes
(140.3600) Lasers and laser optics : Lasers, tunable
(160.6990) Materials : Transition-metal-doped materials
(300.6250) Spectroscopy : Spectroscopy, condensed matter

ToC Category:
Lasers and Laser Optics

History
Original Manuscript: May 1, 2008
Revised Manuscript: June 19, 2008
Manuscript Accepted: June 27, 2008
Published: September 12, 2008

Citation
M. Yu. Sharonov, A. B. Bykov, V. Petricevic, and R. R. Alfano, "Spectroscopic study of optical centers formed in Bi-, Pb-, Sb-, Sn-, Te-, and In-doped germanate glasses," Opt. Lett. 33, 2131-2133 (2008)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-33-18-2131

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