Author : Girijamba D L 1
Date of Publication :7th May 2015
Abstract: Optical biosensors are highly sensitive devices for detection and analysis of bio-analytes that combines biological components with a physicochemical detector. Groundwater is the major source of drinking water for residents of urban or rural areas. Fluoride content in drinkable groundwater directly affects the quality of drinking water. In this paper we have demonstrated a 2-dimensional photonic crystal based biosensor with line defect which can detect different fluorides in water. Simulation and analysis has been done for calcium fluoride, cesium fluoride, potassium fluoride, lithium fluoride and strontium fluoride and peak has been observed. By detecting these fluorides various diseases that are caused by fluorides can be detected easily. One such major detection is to detect dental fluorosis caused by the fluorides present in water. Finite Difference Time Domain (FDTD) method has been used for the analysis. MEEP (MIT Electromagnetic Equation Propagation) simulation tool have been used for modeling and designing of photonic crystal.
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