Energy transfer from Tm3+:3H5 to Dy3+:6F11/2 6H9/2 in selenide glasses

Zhiyong Yang; Lan Luo; Wei Chen

doi:10.1364/JOSAB.23.000358

Energy transfer from ${Tm}^{3 +} : {}^{3}H_{5}$ to ${Dy}^{3 +} : {}^{6}F_{11 ∕ 2} {}^{6}H_{9 ∕ 2}$ in selenide glasses

Zhiyong Yang, Lan Luo, and Wei Chen

Journal of the Optical Society of America B
Vol. 23,
Issue 2,
pp. 358-362
(2006)
•https://doi.org/10.1364/JOSAB.23.000358

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Zhiyong Yang, Lan Luo, and Wei Chen, "Energy transfer from Tm³⁺:³H₅ to Dy³⁺:⁶F_11/2 ⁶H_9/2 in selenide glasses," J. Opt. Soc. Am. B 23, 358-362 (2006)

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Table of Contents Category
- Spectroscopy
Optics & Photonics Topics
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The topics in this list come from the OSA Optics and Photonics Topics applied to this article.
Previously assigned OCIS codes
- Rare-earth-doped materials (160.5690)
- Energy transfer (260.2160)
- Spectroscopy, fluorescence and luminescence (300.6280)

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History
- Original Manuscript: August 5, 2005
- Revised Manuscript: September 21, 2005
- Manuscript Accepted: September 22, 2005

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Abstract

The effects of ${Tm}^{3 +}$ ions on the intensity and lifetime of $1.3 μ m$ fluorescence from ${Dy}^{3 +}$ ions in ${Ge}_{25} {Ga}_{5} {Sb}_{5} {Se}_{65}$ glass were investigated, and the energy-transfer mechanisms were discussed. ${Tm}^{3 +}$ codoping in ${Dy}^{3 +}$ -doped selenide glasses significantly enhanced the $1.3 μ m$ fluorescence intensity and remarkably increased corresponding lifetime through an efficient energy transfer from ${Tm}^{3 +} : {}^{3}H_{5}$ to ${Dy}^{3 +} : {}^{6}F_{11 ∕ 2} {}^{6}H_{9 ∕ 2}$ . The donor $({Tm}^{3 +})$ excitation was transferred to the acceptor $({Dy}^{3 +})$ by direct electric dipole–dipole interaction or migrated among donor ions by diffusion-limited regime until it came into the vicinity of an acceptor ion, where direct interaction and transfer occurred.

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Dopant	Central Wavelength (μm)	$Lifetime (μ s)$
$0.1 wt % {Dy}^{3 +}$	1.348	310
$0.1 wt % {Tm}^{3 +}$	1.224	1001
$0.1 wt % {Dy}^{3 +} + 0.1 wt % {Tm}^{3 +}$	$1.344 ∕ 1.224$	$345 ∕ 480$
$0.1 wt % {Dy}^{3 +} + 0.2 wt % {Tm}^{3 +}$	1.335	370
$0.1 wt % {Dy}^{3 +} + 0.3 wt % {Tm}^{3 +}$	1.328	430
$0.1 wt % {Dy}^{3 +} + 0.4 wt % {Tm}^{3 +}$	$1.325 ∕ 1.236$	$470 ∕ 801$
$0.4 wt % {Tm}^{3 +}$	1.238	1001
$0.4 wt % {Tm}^{3 +} + 0.2 wt % {Dy}^{3 +}$	1.236	454
$0.4 wt % {Tm}^{3 +} + 0.4 wt % {Dy}^{3 +}$	1.232	258
$0.4 wt % {Tm}^{3 +} + 0.8 wt % {Dy}^{3 +}$	1.230	155

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