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comparison of tapered optical fiber sensors based on gold, silver, copper and aluminum nanoparticles
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DOR
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20.1001.2.0021054054.1400.1.1.23.1
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نویسنده
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borjikhani parisa ,zibaii mohammad ismail ,granpayeh nosrat
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منبع
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كنفرانس ملي حسگرهاي فيبر نوري - 1400 - دوره : 1 - اولین کنفرانس ملی حسگرهای فیبر نوری - کد همایش: 00210-54054 - صفحه:13 -15
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چکیده
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Four tapered optical fiber sensors based on the localized surface plasmon resonance (lspr) method with au, ag, cu, and al nanoparticles on the fiber waist area are simulated and investigated. the simulation method is a combination of the finite-difference time-domain (fdtd) and finite element method (fem). the transmittance spectrum of the tapered optical fiber by variation of analyte refractive index is obtained for these four sensors and their amplitude and wavelength sensitivities are compared. it is shown that the au sensor has the highest amplitude sensitivity of -4.5 per refractive index unit (1/riu) and the ag sensor has the highest wavelength sensitivity of 174.9 (nm/riu) among these sensors. the results show that if the environmental conditions and the possibility of design for these sensors are provided, each sensor has its own advantages for diagnosing the diseases with the analyte refractive index range of 1.333‑1.403.
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کلیدواژه
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sensor ,tapered optical fiber ,localized surface plasmon resonance ,nanoparticles
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آدرس
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k. n. toosi university of technology, faculty of electrical engineering, center of excellence in electromagnetics, optical communication laboratory, ایران, shahid beheshti university, laser & plasma research institute, ایران, k. n. toosi university of technology, faculty of electrical engineering, center of excellence in electromagnetics, optical communication laboratory, ایران
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Comparison of Tapered Optical Fiber Sensors Based on Gold, Silver, Copper and Aluminum Nanoparticles
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Authors
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Borjikhani Parisa ,Zibaii Mohammad Ismail ,Granpayeh Nosrat
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Abstract
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Four tapered optical fiber sensors based on the localized surface plasmon resonance (LSPR) method with Au, Ag, Cu, and Al nanoparticles on the fiber waist area are simulated and investigated. The simulation method is a combination of the finite-difference time-domain (FDTD) and finite element method (FEM). The transmittance spectrum of the tapered optical fiber by variation of analyte refractive index is obtained for these four sensors and their amplitude and wavelength sensitivities are compared. It is shown that the Au sensor has the highest amplitude sensitivity of -4.5 per refractive index unit (1/RIU) and the Ag sensor has the highest wavelength sensitivity of 174.9 (nm/RIU) among these sensors. The results show that if the environmental conditions and the possibility of design for these sensors are provided, each sensor has its own advantages for diagnosing the diseases with the analyte refractive index range of 1.333‑1.403.
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Keywords
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Sensor ,Tapered Optical Fiber ,Localized Surface Plasmon Resonance ,Nanoparticles
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