دوره 11، شماره 1 - ( 10-1395 )                   جلد 11 شماره 1 صفحات 24-19 | برگشت به فهرست نسخه ها


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Jafari J, Nouroozi R. Fabrication and Characterization of the Fiber Optical Taper for a Surface Plasmon Resonance Sensor. IJOP. 2017; 11 (1) :19-24
URL: http://ijop.ir/article-1-267-fa.html
Fabrication and Characterization of the Fiber Optical Taper for a Surface Plasmon Resonance Sensor. . 1395; 11 (1) :24-19

URL: http://ijop.ir/article-1-267-fa.html


چکیده:   (3947 مشاهده)

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 µliter droplet of the HF acid for short fiber optical taper fabrication is reported. Using this method in a multi-mode optical fiber with the core/cladding size of 50/125 µm a 2 mm long taper with 40 µm 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.

     
نوع مطالعه: پژوهشي | موضوع مقاله: تخصصي
دریافت: 1395/2/13 | ویرایش نهایی: 1395/3/24 | پذیرش: 1395/6/7 | انتشار: 1395/11/9

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