Surface plasmon resonance sensor based on D-type fiber with a gold wire

• Type: Article in International Scientific Journal
• Date: 2017

Authors

Santos, DF (Author) Other; Guerreiro, A (Author) FCUP; Baptista, JM (Author) Other

Journal

Title: Optik

Vol. 139

Pages: 244-249

ISSN: 0030-4026

Publisher: Elsevier

Indexing

ISI Web of Knowledge - 12 Citations

Scopus - 16 Citations

Other information

Authenticus ID: P-00M-NEV

DOI: 10.1016/j.ijleo.2017.03.035

Abstract (EN): We propose a refractive index sensor based on surface plasmon resonance (SPR) in a gold wire partially incrusted on the surface of a D-type fiber and in contact with the external medium for increased sensitivity and roughness. The sensor is studied using numerical simulations based on the finite element method (FEM) and is compared with a more conventional D-type fiber SPR where the wire is replaced with a gold film. The numerical work estimates the sensitivity and resolution for different analytic refractive indexes (RI) in the range of 1.30-1.40, for a sensor based on the wavelength interrogation method. The results indicate that the use of the gold wire provides a better sensitivity when compared with the gold film, while supporting multiple peaks in different wavelengths, each with distinct values of sensitivity and resolution.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 6