Fabrication and Characterization of the Fiber Optical Taper For A Surface Plasmon Resonance Sensor
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نویسنده
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Jafari Jalil ,Nouroozi Rahman
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منبع
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International Journal Of Optics And Photonics - 2017 - دوره : 11 - شماره : 1 - صفحه:19 -24
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چکیده
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For a fiber optical surface plasmon resonance (spr) sensor a short part of its cladding should be removed to coat a thin layer of a metal. usually this is problematic when an optical fiber with small core diameter is used. in this paper, a new method using micro;liter droplet of the hf acid for short fiber optical taper fabrication is reported. using this method in a multimode optical fiber with the core/cladding size of 50/125 micro;m a 2 mm long taper with 40 micro;m diameter is fabricated. roughness of its surface is investigated using an atomic force microscopy. the measured mean value of the roughness is about 8 nm. a 60 nm thin layer of pure silver is coated on the taper surface in order to investigate its performance using a fiber optical spr sensor. using this spr fiber sensor measurement of the lead concentrations in water ranging from 0.1 to 10 part per million (ppm) is reported.
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کلیدواژه
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Chemical Etching ,Fiber Optical Taper ,Optical Fiber ,Surface Plasmon Resonance ,Sensors.
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آدرس
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Institute For Advanced Studies In Basic Sciences (Iasbs), Physics Department, ایران, Institute For Advanced Studies In Basic Sciences (Iasbs), Physics Department, ایران
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پست الکترونیکی
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rahman.nouroozi@iasbs.ac.ir
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