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Tip sensor probe for changing refractive index measurement in small volumes
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نویسنده
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Nikbakht Hamed ,Latifi Hamid ,Amini Tahereh ,Zibaii Mohammad Ismail
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منبع
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international journal of optics and photonics - 2014 - دوره : 8 - شماره : 2 - صفحه:105 -111
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چکیده
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In this paper, a tapered tip optical fiber probe sensor for localized refractive index (ri) measurements is presented. this sensor’s interaction with analytes is confined to a few micro-meters which makes it a promising candidate for in-vivo or even intra-cellular ri monitoring. this tapered tip was simply fabricated by etching optical fiber with hydrofluoric acid to a conic shape with a sub-micrometer aperture. the sensor was calibrated for ri measurement using different concentrations of nacl in water. limit of detection of 6.7×10-5 riu was achieved for this low-cost sensor.
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کلیدواژه
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etching ,intra-cellular sensor ,optical fiber tip ,refractive index ,tapered optical fiber
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آدرس
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shahid beheshti university, Laser & Plasma Research Institute, Shahid Beheshti University, ایران, shahid beheshti university, Laser & Plasma Research Institute, Shahid Beheshti University, ایران, shahid beheshti university, Department of Physics, Shahid Beheshti University, ایران, shahid beheshti university, Laser & Plasma Research Institute, Shahid Beheshti University, ایران
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پست الکترونیکی
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mizibaye@gmail.com
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Authors
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