A Multi-Plasmonic Approach for Simultaneous Measurements based on a D-Shaped Photonic Crystal Fiber Sensor: from Temperature to Optical Dispersion

Autor: Amanda F. Romeiro, Markos P. Cardoso, Anderson O. Silva, João C. W. A. Costa, M. Thereza R. Giraldi, José L. Santos, José M. Baptista, Ariel Guerreiro
Jazyk: angličtina
Rok vydání: 2023
Předmět:
Zdroj: Journal of Microwaves, Optoelectronics and Electromagnetic Applications, Vol 22, Iss 1, Pp 219-229 (2023)
Druh dokumentu: article
ISSN: 2179-1074
DOI: 10.1590/2179-10742023v22i1270778
Popis: Abstract The growing demand for multiparameter sensors includes compact devices accompanied by simple calibration processes to distinguish the outputs from each other. This paper evaluates a scheme to determine multiple parameters of a medium using localized surface plasmon resonances (SPR) excited on a Dshaped photonic crystal fiber (PCF) partially covered by two gold layers of different thicknesses. We demonstrate that the proposed sensing platform, once customized to characterize the possible dispersive profiles of the refractive index of the analyte, also allows interrogating the temperature of a sample from a linear relationship. Since the plasmonic resonances are excited at separated and low crosstalk spectral channels, different sensing responses can be obtained simultaneously in the same location of the D-shaped PCF. These features turn out the SPR sensor a suitable tool for simultaneous monitoring of optical dispersion and temperature.
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