| Autor: |
Md. Ibadul Islam, Kawsar Ahmed, Sayed Asaduzzaman, Bikash Kumar Paul, Touhid Bhuiyan, Shuvo Sen, Md. Shadidul Islam, Sawrab Chowdhury |
| Jazyk: |
angličtina |
| Rok vydání: |
2017 |
| Předmět: |
|
| Zdroj: |
Sensing and Bio-Sensing Research, Vol 13, Iss , Pp 55-62 (2017) |
| Druh dokumentu: |
article |
| ISSN: |
2214-1804 |
| DOI: |
10.1016/j.sbsr.2017.03.001 |
| Popis: |
In this paper, a spiral shape photonic crystal fiber (S-PCF) has been suggested as a gas sensor for detecting toxic or colorless gases as well as monitoring the air pollution by metering gas condensate elements in production facilities. Our reported S-PCF is micro-structured where two layers porous core is encircled by a spiral shape cladding. The geometrical parameters have altered to optimize the parameters of the proposed structure. The numerical analysis of the proposed S-PCF is performed by utilizing finite element method (FEM). The relative sensitivity and birefringence of the proposed S-PCF are 55.10% and 7.23 × 10−3 respectively at the 1.33 μm wavelength that lies in the absorption line of toxic gases (methane and hydrogen fluoride). Besides, effective area, nonlinear coefficient and V parameters are also described briefly. Keywords: Birefringence, Effective area, Gas sensor, Non-linear coefficient, Sensitivity, Spiral photonic crystal fiber |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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