| Autor: |
Li, Chengyan, Ding, Jiale, Xia, Lizhang, Zhang, Yu, Zhou, Yaxun |
| Zdroj: |
Optoelectronics Letters; Nov2022, Vol. 18 Issue 11, p683-686, 4p |
| Abstrakt: |
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. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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