Thermal effect on multiphonon-assisted anti-Stokes excited upconversion fluorescence emission in Yb 3+ -sensitized Er 3+ -doped optical fiber

2000 ◽  
Vol 70 (2) ◽  
pp. 185-188 ◽  
Author(s):  
C.J. da Silva ◽  
M.T. de Araujo ◽  
E.A. Gouveia ◽  
A.S. Gouveia-Neto
Keyword(s):  
Optical Fiber ◽  
Thermal Effect ◽  
Fluorescence Emission ◽  
Upconversion Fluorescence ◽  
Anti Stokes

Frequency Upconversion Fluorescence Emission of Er 3+ -Doped Oxychloride Germanate Glass

2005 ◽  
Vol 22 (4) ◽  
pp. 952-955 ◽  
Author(s):  
Sun Hong-Tao ◽  
Zhang Li-Yan ◽  
Zhang Jun-Jie ◽  
Dai Shi-Xun ◽  
Yu Chun-Lei ◽  
...  
Keyword(s):  
Fluorescence Emission ◽  
Germanate Glass ◽  
Frequency Upconversion ◽  
Upconversion Fluorescence

Optical fiber liquid refractive index sensor based on Fresnel reflection of anti-Stokes light

2018 ◽  
Vol 279 ◽  
pp. 140-144 ◽  
Author(s):  
Dong Wang ◽  
Jingkuo Tong ◽  
Baoquan Jin ◽  
Yu Wang ◽  
Mingjiang Zhang
Keyword(s):  
Refractive Index ◽  
Optical Fiber ◽  
Refractive Index Sensor ◽  
Fresnel Reflection ◽  
Anti Stokes

scholarly journals Development of an Aptamer Based Luminescent Optical Fiber Sensor for the Continuous Monitoring of Hg2+ in Aqueous Media

Sensors ◽  
2020 ◽  
Vol 20 (8) ◽  
pp. 2372 ◽  
Author(s):  
Nerea De Acha ◽  
César Elosúa ◽  
Francisco J. Arregui
Keyword(s):  
Optical Fiber ◽  
Aqueous Solutions ◽  
Limit Of Detection ◽  
Tap Water ◽  
Aqueous Media ◽  
Optical Fiber Sensor ◽  
Fluorescence Emission ◽  
Fiber Sensor ◽  
Buffer Solution ◽  
Fluorescence Quencher

A fluorescent optical fiber sensor for the detection of mercury (Hg2+) ions in aqueous solutions is presented in this work. The sensor was based on a fluorophore-labeled thymine (T)-rich oligodeoxyribonucleotide (ON) sequence that was directly immobilized onto the tip of a tapered optical fiber. In the presence of mercury ions, the formation of T–Hg2+-T mismatches quenches the fluorescence emission by the labeled fluorophore, which enables the measurement of Hg2+ ions in aqueous solutions. Thus, in contrast to commonly designed sensors, neither a fluorescence quencher nor a complementary ON sequence is required. The sensor presented a response time of 24.8 seconds toward 5 × 10−12 M Hg2+. It also showed both good reversibility (higher than the 95.8%) and selectivity: the I0/I variation was 10 times higher for Hg2+ ions than for Mn2+ ions. Other contaminants examined (Co2+, Ag+, Cd2+, Ni2+, Ca2+, Pb2+, Mn2+, Zn2+, Fe3+, and Cu2+) presented an even lower interference. The limit of detection of the sensor was 4.73 × 10−13 M Hg2+ in buffer solution and 9.03 × 10−13 M Hg2+ in ultrapure water, and was also able to detect 5 × 10−12 M Hg2+ in tap water.

Side illumination fluorescence emission characteristics from a dye doped polymer optical fiber under two-photon excitation

2008 ◽  
Vol 47 (11) ◽  
pp. 1913 ◽  
Author(s):  
M. Sheeba ◽  
M. Rajesh ◽  
S. Mathew ◽  
V. P. N. Nampoori ◽  
C. P. G. Vallabhan ◽  
...  
Keyword(s):  
Optical Fiber ◽  
Fluorescence Emission ◽  
Emission Characteristics ◽  
Polymer Optical Fiber ◽  
Two Photon ◽  
Photon Excitation ◽  
Doped Polymer ◽  
Side Illumination ◽  
Two Photon Excitation

Intense frequency upconversion fluorescence emission of Er3+/Yb3+-codoped oxychloride germanate glass

2006 ◽  
Vol 414 (1-2) ◽  
pp. 142-145 ◽  
Author(s):  
Hong-tao Sun ◽  
Lei Wen ◽  
Zhong-chao Duan ◽  
Li-li Hu ◽  
Jun-jie Zhang ◽  
...  
Keyword(s):  
Fluorescence Emission ◽  
Germanate Glass ◽  
Frequency Upconversion ◽  
Upconversion Fluorescence
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