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In this paper, we explore numerically the feasibility of a methadone sensor based on novel exposed-core optical fiber coated with a sensitive polymeric layer. The sensor characteristics have been simulated using the Finite Element Method (FEM). In particular, we have shown that the sensor performance can be enhanced, more specifically the minimum detectable concentration of methadone can be reduced,...
In this paper, the design of a silica exposed-core fiber sensor for methadone detection in water is reported. The sensor feasibility is numerically investigated using a Finite Element Method (FEM) numerical code. The simulation results have evaluated the fiber cross sections that incorporate a polymeric cladding as a sensitive layer as a means of enhancing the evanescent field interaction with the...
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