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Optics Letters

Optics Letters


  • Editor: Alan E. Willner
  • Vol. 33, Iss. 16 — Aug. 15, 2008
  • pp: 1786–1788

Unusual behavior of Tb 3 + in K 3 YF 6 green-emitting phosphor

Marek A. Gusowski and Witold Ryba-Romanowski  »View Author Affiliations

Optics Letters, Vol. 33, Issue 16, pp. 1786-1788 (2008)

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We report on photoluminescence studies of Tb 3 + in a polycrystalline cryolite type K 3 YF 6 host. The location of the Tb 3 + in the center of inversion forbids the electric-dipole transitions of terbium ions in this material. As a consequence almost the entire luminescence intensity is related to the D 4 5 F 5 7 magnetic-dipole transition, and it is contained in the extremely narrow spectral bandwidth amounting to 1.7 nm at 8 K and to 18 nm at room temperature. The phosphor under study can be efficiently excited making use of intense f d transitions of Tb 3 + in the UV–vacuum-UV region and may be of interest for applications requiring high spectral purity of the emission.

© 2008 Optical Society of America

OCIS Codes
(000.2190) General : Experimental physics
(160.5690) Materials : Rare-earth-doped materials
(260.3800) Physical optics : Luminescence
(300.2140) Spectroscopy : Emission
(300.6540) Spectroscopy : Spectroscopy, ultraviolet

ToC Category:

Original Manuscript: May 16, 2008
Manuscript Accepted: June 10, 2008
Published: August 4, 2008

Marek A. Gusowski and Witold Ryba-Romanowski, "Unusual behavior of Tb3+ in K3YF6 green-emitting phosphor," Opt. Lett. 33, 1786-1788 (2008)

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