Gas sensing based on detection of light radiation from a region of modified cladding (nanocrystalline ZnO) of an optical fiber

被引：45
作者：
Devendiran, S. [1 ]
Sastikumar, D. [1 ]
机构：
[1] Natl Inst Technol, Dept Phys, Tiruchirappalli 620015, Tamil Nadu, India
来源：
OPTICS AND LASER TECHNOLOGY | 2017年 / 89卷
关键词：
Clad-modified; Ethanol gas; Gas sensor; Optical fiber; ZnO; HIGH-SENSITIVITY; SENSORS; ETHANOL; FILM;
D O I：
10.1016/j.optlastec.2016.10.013
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A new type of fiber optic gas sensor is proposed by detecting a light radiated from a region of cladding modified with metal oxide (nanocrystalline ZnO). The intensity of radiated light is found to vary with different gasses and concentrations. Sensing characteristics are studied for ammonia, methanol, ethanol and acetone gasses. Gas sensitivity of the proposed sensor is compared with clad-modified fiber optic gas sensor. The new sensor exhibits enhanced sensitivity. Time response characteristics of the sensor are reported.
引用
收藏
页码：186 / 191
页数：6
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