Enhancement of dual-broadband NIR emissions in Ag NPs embedded tellurite glass doped with Er3+/Tm3+/Ho3+ ions

Chengyan Li , Jiale Ding , Lizhang Xia , Yu Zhang , Yaxun Zhou

Optoelectronics Letters ›› 2022, Vol. 18 ›› Issue (11) : 683 -686.

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Optoelectronics Letters ›› 2022, Vol. 18 ›› Issue (11) : 683 -686. DOI: 10.1007/s11801-022-2092-8
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Enhancement of dual-broadband NIR emissions in Ag NPs embedded tellurite glass doped with Er3+/Tm3+/Ho3+ ions

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Abstract

Tellurite glasses combined with metal silver nanoparticles (Ag NPs) and Er3+/Tm3+/Ho3+ ions were synthesized using melting and quenching technique, and the enhanced two-band near-infrared (NIR) fluorescence induced by Ag NPs was reported. Upon the excitation of 808 nm laser diode (LD), dual-broadband and flat NIR fluorescence ranging from 1 350 nm to 1 600 nm and from 1 600 nm to 2 200 nm with full width at half maximum (FWHM) of 154 nm and 374 nm respectively in Ag NPs embedded tellurite glass doped with appropriate concentrations of Er3+/Tm3+/Ho3+ ions has an obvious enhancement of about 40% with respect to the glass sample without Ag NPs, which is attributed to the local field effect caused by Ag NPs and energy transfer from Ag species to rare-earth ions. The enhanced dual-broadband and flat NIR fluorescence enables us to develop various NIR band photonic devices flexibly.

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Chengyan Li, Jiale Ding, Lizhang Xia, Yu Zhang, Yaxun Zhou. Enhancement of dual-broadband NIR emissions in Ag NPs embedded tellurite glass doped with Er3+/Tm3+/Ho3+ ions. Optoelectronics Letters, 2022, 18(11): 683-686 DOI:10.1007/s11801-022-2092-8

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