Design of silica-based photonic crystal fiber for biosensing applications

作者：Mescia L; Prudenzano F^*; Allegretti L; Calo G; De Sario M; D'Orazio A; Maiorano L; Palmisano T; Petruzzelli V

来源：Journal of Non-Crystalline Solids, 2009, 355(18-21): 1163-1166.

DOI：10.1016/j.jnoncrysol.2009.01.047

• Biosensors
• Optical fibers

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.

• 出版日期2009-7-1