Surface Plasmon Resonance sensor based on a D-shaped photonic crystal fiber with a bimetallic layer
1 Federal University of Pará, Applied Electromagnetism Laboratory, Rua Augusto Corrêa, 01, 66075-110, Belém, Pará, Brazil
2 Federal Center for Technological Education Celso Suckow da Fonseca, Av Maracana, 20271-110 – Rio de Janeiro, Brazil
3 Military Institute of Engineering, Laboratory of Photonics, Praça Gen. Tibúrcio, 80, 22290-270, Rio de Janeiro, Brazil
4 Faculdade de Ciências Exatas e da Engenharia, Univerisidade da Madeira, Campus da Penteada, 9020-105 Funchal, Portugal
5 Faculadade de Ciências da Universidade do Porto, Rua do Campo Alegre s/n, 4169-007 Porto, Portugal
6 INESC TEC, Rua Dr Roberto Frias, 4200-465 Porto, Portugal
Published online: 20 August 2020
The investigation of a D-shaped photonic crystal fiber sensor with a bimetallic layer for operation at the visible and infrared spectra is presented. The bimetallic layer is composed by silver and gold slabs deposited adjacently on the flat face of the fiber. It is shown that this architecture allows the excitation of two sharply distinguished plasmon resonance, which suggest potential applications for multiparameter sensing.
© The Authors, published by EDP Sciences, 2020
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