Broadband conversion of visible light to near-infrared emission by Ce<sup>3+</sup>, Yb<sup>3+</sup>-codoped yttrium aluminum garnet

Xiaofeng Liu; Yu Teng; Yixi Zhuang; Junhua Xie; Yanbo Qiao; Guoping Dong; Danping Chen; Jianrong Qiu

doi:10.1364/OL.34.003565

Broadband conversion of visible light to near-infrared emission by ${Ce}^{3 +}$ , ${Yb}^{3 +}$ -codoped yttrium aluminum garnet

Xiaofeng Liu, Yu Teng, Yixi Zhuang, Junhua Xie, Yanbo Qiao, Guoping Dong, Danping Chen, and Jianrong Qiu

Optics Letters
Vol. 34,
Issue 22,
pp. 3565-3567
(2009)
•https://doi.org/10.1364/OL.34.003565

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Xiaofeng Liu, Yu Teng, Yixi Zhuang, Junhua Xie, Yanbo Qiao, Guoping Dong, Danping Chen, and Jianrong Qiu, "Broadband conversion of visible light to near-infrared emission by Ce³⁺, Yb³⁺-codoped yttrium aluminum garnet," Opt. Lett. 34, 3565-3567 (2009)

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Abstract

We show that ${Ce}^{3 +}$ can be an efficient sensitizer for ${Yb}^{3 +}$ in the host lattice of yttrium aluminum garnet (YAG). With blue-light excitation to induce the $4 f \to 5 d$ transition of ${Ce}^{3 +}$ , characteristic near-IR emission of ${Yb}^{3 +}$ due to transition of ${}^{2}F_{5 ∕ 2} \to {}^{2}F_{7 ∕ 2}$ peaking at $1030 nm$ is generated as a result of energy transfer from ${Ce}^{3 +}$ to ${Yb}^{3 +}$ . The result of spectral evolution with temperature indicates that the efficiency of energy transfer is enhanced owing to thermal effect. This evidence implies that the phonon-assisted process participates in the downconversion of YAG: ${Ce}^{3 +}$ , ${Yb}^{3 +}$ .

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