Evanescent wave absorption sensor based on tapered multimode fiber coated with monolayer graphene film

2016 ◽  
Vol 366 ◽  
pp. 275-281 ◽  
Author(s):  
Hengwei Qiu ◽  
Saisai Gao ◽  
Peixi Chen ◽  
Zhen Li ◽  
Xiaoyun Liu ◽  
...  
2017 ◽  
Vol 50 (31) ◽  
pp. 315302 ◽  
Author(s):  
Zhe Li ◽  
Chao Zhang ◽  
Yanshun Han ◽  
Saisai Gao ◽  
Yingqiang Sheng ◽  
...  

2016 ◽  
Vol 34 (10) ◽  
pp. 1039-1047 ◽  
Author(s):  
Shouzhen Jiang ◽  
Hengwei Qiu ◽  
Saisai Gao ◽  
Peixi Chen ◽  
Zhen Li ◽  
...  

2016 ◽  
Vol 168 ◽  
pp. 117-120 ◽  
Author(s):  
S. Chauhan ◽  
N. Punjabi ◽  
D. Sharma ◽  
S. Mukherji

ACS Photonics ◽  
2016 ◽  
Vol 4 (1) ◽  
pp. 121-126 ◽  
Author(s):  
Yoichi Harada ◽  
Muhammad Shoufie Ukhtary ◽  
Minjie Wang ◽  
Sanjay K. Srinivasan ◽  
Eddwi H. Hasdeo ◽  
...  

Nanophotonics ◽  
2018 ◽  
Vol 7 (9) ◽  
pp. 1557-1562 ◽  
Author(s):  
Tao He ◽  
Yukun Zhao ◽  
Xiaodong Zhang ◽  
Wenkui Lin ◽  
Kai Fu ◽  
...  

AbstractIn this paper, a solar-blind ultraviolet photodetector (PD) based on the graphene/vertical Ga2O3 nanowire array heterojunction was proposed and demonstrated. To the best of our knowledge, it is the first time that vertical Ga2O3 nanowire arrays have been realized. Ga2O3 nanowires were obtained by thermally oxidizing GaN nanowires grown by molecular beam epitaxy on n-doped Si substrate. Then, a monolayer graphene film was transferred to Ga2O3 nanowires to form the graphene/vertical Ga2O3 nanowire array heterojunction and transparent electrodes. The fabricated device exhibited a responsivity (R) of 0.185 A/W and rejection ratio (R258 nm/R365 nm) of 3×104 at the bias of −5 V. Moreover, the fast response times of this PD were 9 and 8 ms for the rise and decay times under 254 nm illumination, respectively, which are attributed to the unique properties of nanowire arrays and the graphene/vertical Ga2O3 nanowire array heterojunction structure.


2009 ◽  
Vol 63 (8) ◽  
pp. 932-935 ◽  
Author(s):  
Jian Zhang ◽  
Feibing Xiong ◽  
Nicholas Djeu

The influence of particulates on sapphire fiber evanescent wave absorption by water has been studied. Suspensions containing microsized graphite flakes and glassy carbon powder were used. Conventional free-space transmittance measurements of these samples showed strong absorption and scattering, which severely screened the absorption by water. However, the absorption on the water band determined from the evanescent wave interaction was unaffected by the presence of the graphite flakes. These results indicate that fiber-optic evanescent wave chemical sensors may be suitable for process control applications involving turbid reactor streams.


2010 ◽  
Vol 22 (18) ◽  
pp. 1352-1354 ◽  
Author(s):  
Xiujie Tian ◽  
Xusheng Cheng ◽  
Wenxuan Wu ◽  
Yanhua Luo ◽  
Qijin Zhang ◽  
...  

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