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Proceedings Paper

Enhanced 5-µm emission in Tm,Tb: KPb[sub]2[/sub]Br[sub]5[/sub] and Tm,Nd:KPb[sub]2[/sub]Br[sub]5[/sub] for mid-infrared laser applications
Author(s): A. G. Bluiett; D. Peele; K. Norman; E. Brown; U. Hommerich; S. B. Trivedi; J. M. Zavada
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Paper Abstract

We report on the 5 μm emission characteristics and energy transfer properties of Tb3+ doped KPb2Br5 and Nd3+ doped KPb2Br5 sensitized by Tm3+ ions. A series of co-doped samples of Tm,Tb: KPb2Br5 and Tm,Nd: KPb2Br5 samples were prepared from purified starting materials of PbBr2, KBr, and rare earth halides. Resonant excitation into the 3H63F4 absorption transition of Tm3+ at ~1760 nm resulted in an enhanced 5 μm emission from Tb3+ and Nd3+ ions in Tm,Tb: KPb2Br5 and Tm,Nd: KPb2Br5, respectively. The existence of energy transfer between Tm → Tb and Tm → Nd was further evidenced by the quenching of the emission decay times of the 3F43H6 transition of Tm3+ in doubly doped Tm,Tb: KPb2Br5 and Tm,Nd: KPb2Br5 compared to singly doped Tm: KPb2Br5.

Paper Details

Date Published: 17 February 2010
PDF: 8 pages
Proc. SPIE 7578, Solid State Lasers XIX: Technology and Devices, 75782I (17 February 2010); doi: 10.1117/12.842188
Show Author Affiliations
A. G. Bluiett, Elizabeth City State Univ. (United States)
D. Peele, Elizabeth City State Univ. (United States)
K. Norman, Elizabeth City State Univ. (United States)
E. Brown, Hampton Univ. (United States)
U. Hommerich, Hampton Univ. (United States)
S. B. Trivedi, Brimrose Corp. of America (United States)
J. M. Zavada, North Carolina State Univ. (United States)

Published in SPIE Proceedings Vol. 7578:
Solid State Lasers XIX: Technology and Devices
W. Andrew Clarkson; Norman Hodgson; Ramesh K. Shori, Editor(s)

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