Enhanced sensitivity of hemoglobin sensor using dual-core photonic crystal fiber |
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| Authors: | N. Ayyanar Ahmed E. Khalil Mohamed Farhat O. Hameed G. Thavasi Raja Salah S. A. Obayya |
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| Affiliation: | 1.Department of Electronics and Communication Engineering,National Institute of Technology,Tiruchirappalli,India;2.Faculty of Engineering,Mansoura University,Mansoura,Egypt;3.Nanotechnology Engineering Program,University of Science and Technology, Zewail City of Science and Technology,Giza,Egypt;4.Centre for Photonics and Smart Materials,Zewail City of Science and Technology,Giza,Egypt |
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| Abstract: | A Hemoglobin (Hb) biosensor based on dual-core photonic crystal fiber is proposed and analyzed. In this paper, the effective refractive index dependency on the Hb concentration within a blood sample is utilized in obtaining the transmission spectrum variation. The results are calculated using full vectorial finite element method. Through this study, the effect of the structure geometrical parameters on the sensor performance is optimized to maximize the sensor sensitivity. The numerical results show a sensitivity of 8.013 nm/g/dL for the X-polarized mode at 3.7 cm fiber length and 7.68 nm/g/dL for the Y-polarized mode at 3.2 cm fiber length of the proposed sensor. |
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