کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
746221 894447 2010 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Fibre-optic SPR sensor with a FBG interrogation scheme for readout enhancement
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
Fibre-optic SPR sensor with a FBG interrogation scheme for readout enhancement
چکیده انگلیسی

In this work a new configuration of a refractometric sensor for aqueous solutions based on the combination of surface plasmon resonance (SPR) with fibre Bragg gratings (FBG) is presented. Two FBGs are selected having reflection maxima in each side of the plasmon resonance peak. These FBGs enable a different processing scheme for the information provided by the SPR transducer. This improved interrogation method increases the sensitivity and resolution of the sensor compared with those obtained with the usual method of tracking the spectral transmittance minimum and makes the system performance independent of optical source power fluctuations. The experimental results obtained with a double-layer uniform-waist tapered fibre show the feasibility of this approach and its applicability in SPR-based biosensors that must face very exigent measuring conditions.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Sensors and Actuators B: Chemical - Volume 144, Issue 1, 29 January 2010, Pages 226–231
نویسندگان
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