In this paper, the design of a new photonic crystal fiber sensor for methadone detection in water is reported. The sensor feasibility is numerically demonstrated via accurate simulations performed by employing a Finite Element Method (FEM) numerical code. The fiber cross section, including a polymeric cladding as sensitive layer, is optimized. In particular, the sensor refinement is obtained via a large number of simulations performed by varying the thickness of the polymeric layer, the hole diameter. the hole-to-hole spacing and the transversal distribution of the holes. The simulation results suggest that a suitable fiber cross section design can enhance the evanescent field interaction with the polymeric layer permeated by the analyte. (C) 2009 Elsevier B.V. All rights reserved.
Design of silica-based photonic crystal fiber for biosensing applications / Mescia, Luciano; Prudenzano, Francesco; Allegretti, L.; Calo', Giovanna; De Sario, M.; D'Orazio, Antonella; Maiorano, L.; Palmisano, T.; Petruzzelli, Vincenzo. - In: JOURNAL OF NON-CRYSTALLINE SOLIDS. - ISSN 0022-3093. - STAMPA. - 355:18-21(2009), pp. 1163-1166. [10.1016/j.jnoncrysol.2009.01.047]
Design of silica-based photonic crystal fiber for biosensing applications
MESCIA, Luciano;PRUDENZANO, Francesco;Calo', Giovanna;D'ORAZIO, Antonella;PETRUZZELLI, Vincenzo
2009-01-01
Abstract
In this paper, the design of a new photonic crystal fiber sensor for methadone detection in water is reported. The sensor feasibility is numerically demonstrated via accurate simulations performed by employing a Finite Element Method (FEM) numerical code. The fiber cross section, including a polymeric cladding as sensitive layer, is optimized. In particular, the sensor refinement is obtained via a large number of simulations performed by varying the thickness of the polymeric layer, the hole diameter. the hole-to-hole spacing and the transversal distribution of the holes. The simulation results suggest that a suitable fiber cross section design can enhance the evanescent field interaction with the polymeric layer permeated by the analyte. (C) 2009 Elsevier B.V. All rights reserved.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.