Upconversion luminescence properties of europium in ZnO–SiO2 glasses by femtosecond laser excitation

2008 ◽  
Vol 107 (2-3) ◽  
pp. 186-188 ◽  
Author(s):  
Lixin Yu ◽  
Masayuki Nogami
Keyword(s):  
Femtosecond Laser ◽  
Laser Excitation ◽  
Upconversion Luminescence ◽  
Luminescence Properties

Upconversion luminescence of CdTe nanocrystals by use of near-infrared femtosecond laser excitation

2007 ◽  
Vol 32 (9) ◽  
pp. 1174 ◽  
Author(s):  
W. Z. Wu ◽  
Z. R. Zheng ◽  
W. L. Liu ◽  
J. P. Zhang ◽  
Y. X. Yan ◽  
...  
Keyword(s):  
Femtosecond Laser ◽  
Near Infrared ◽  
Laser Excitation ◽  
Upconversion Luminescence ◽  
Cdte Nanocrystals

Enhancing the upconversion luminescence properties of Er3+–Yb3+ doped yttrium molybdate through Mg2+ incorporation: effect of laser excitation power on temperature sensing and heat generation

2019 ◽  
Vol 43 (15) ◽  
pp. 5960-5971 ◽  
Author(s):  
Shriya Sinha ◽  
Manoj Kumar Mahata ◽  
Kaushal Kumar
Keyword(s):  
Heat Generation ◽  
Laser Excitation ◽  
Upconversion Luminescence ◽  
Excitation Power ◽  
Temperature Sensing ◽  
Luminescence Properties

Upconversion luminescence was enhanced by incorporating Mg2+ into Er3+–Yb3+-doped yttrium molybdate and the effect of laser excitation power on temperature sensing and nanoheating was investigated.

scholarly journals The peak shift and evolution of upconversion luminescence from CsPbBr3nanocrystals under femtosecond laser excitation

RSC Advances ◽  
2017 ◽  
Vol 7 (57) ◽  
pp. 35757-35764 ◽  
Author(s):  
Qiuju Han ◽  
Wenzhi Wu ◽  
Weilong Liu ◽  
Yanqiang Yang
Keyword(s):  
Excited State ◽  
Femtosecond Laser ◽  
Laser Excitation ◽  
Upconversion Luminescence ◽  
Peak Shift ◽  
Peak Position ◽  
Red Shift ◽  
Time Resolved ◽  
Pl Spectrum

Compared with normal PL, a red shift of upconversion PL spectrum is observed. Time-resolved PL and TA spectroscopies show FWHM and peak position are changed at various times, which suggest the existence of more than single excited state.

scholarly journals Three- and four-photon excited upconversion luminescence in terbium doped lutetium silicate powders by femtosecond laser irradiation

2013 ◽  
Vol 3 (11) ◽  
pp. 1803 ◽  
Author(s):  
Nikifor Rakov ◽  
Whualkuer Lozano B. ◽  
Edilson L. Falcão-filho ◽  
Renato B. Guimarães ◽  
Glauco S. Maciel ◽  
...  
Keyword(s):  
Femtosecond Laser ◽  
Laser Irradiation ◽  
Upconversion Luminescence ◽  
Femtosecond Laser Irradiation

Controlled synthesis and upconversion luminescence properties of LiYF4:Yb0.2Er0.02nanoparticles

2016 ◽  
Vol 3 (7) ◽  
pp. 075005 ◽  
Author(s):  
Dan Zhang ◽  
Gejihu De ◽  
Lu Zi ◽  
Yueshan Xu ◽  
Songtao Liu
Keyword(s):  
Upconversion Luminescence ◽  
Luminescence Properties ◽  
Controlled Synthesis

Upconversion Luminescence Properties of Ho3+, Tm3+, Yb3+ Co-Doped Nanocrystal NaYF4 Synthesized by Hydrothermal Method

2006 ◽  
Vol 24 (6) ◽  
pp. 757-760 ◽  
Author(s):  
Yang Kuisheng ◽  
Li Yan ◽  
Yu Chaoyi ◽  
Lu Liping ◽  
Ye Chanhua ◽  
...  
Keyword(s):  
Hydrothermal Method ◽  
Upconversion Luminescence ◽  
Luminescence Properties ◽  
Co Doped

Upconversion luminescence properties of Li+-doped ZnWO4:Yb,Er

2008 ◽  
Vol 23 (8) ◽  
pp. 2078-2083 ◽  
Author(s):  
Xi-xian Luo ◽  
Wang-he Cao
Keyword(s):  
Liquid Phase ◽  
Calcination Temperature ◽  
Crystal Field ◽  
Lower Energy ◽  
Upconversion Luminescence ◽  
Peak Position ◽  
Liquid Phase Sintering ◽  
Red Shift ◽  
Luminescence Properties ◽  
Sintering Process

Upconversion luminescence (UPL) characteristics and effects of Li+ ion on the UPL of ZnWO4:Yb,Er polycrystalline phosphors were investigated. It was shown that introduction of Li+ ions could reduce the calcination temperature by about 200 °C and increase the crystallinity of ZnWO4:Yb,Er by a liquid-phase sintering process via formation of Li2WO4 and other intermediates. UPL efficiency is remarkably promoted by Li+ ions. Moreover, the UPL spectrum of Li+-doped ZnWO4:Yb,Er presents a red shift, and the strongest peak position shifts from 553 to 559 nm. These can be attributed to a shift in the 4f level barycenter to lower energy, which results from lowering of the symmetry of the crystal field around Er3+.

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