Tunable Plasmonic Resonance Sensor Using a Metamaterial Film in a D-Shaped Photonic Crystal Fiber for Refractive Index Measurements

• Type: Article in International Scientific Journal
• Date: 2022

Authors

Cardoso, MP (Author) Other; Silva, AO (Author) Other; Romeiro, AF (Author) Other; Giraldi, MTR (Author) Other; Costa, JCWA (Author) Other; Santos, JL (Author) FCUP; Baptista, JM (Author) Other; Guerreiro, A (Author) FCUP

Journal

Title: Applied Sciences

Vol. 101

Final page: 2153

Publisher: MDPI

Indexing

ISI Web of Knowledge - 3 Citations

Scopus - 3 Citations

Other information

Authenticus ID: P-00W-5N9

DOI: 10.3390/app12042153

Abstract (EN): Subwavelength cells of metallic nanorods arrayed in a dielectric background, termed "metamaterials", present bulk properties that are useful to control and manipulate surface plasmon resonances. Such feature finds tremendous potential in providing a broad manifold of applications for plasmonic optical sensors. In this paper, we propose a surface-plasmon-resonance-based sensor with spectral response tunable by the volume fraction of silver present in a metamaterial layer deposited on a D-shaped photonic crystal fiber. Using computational simulations, we show that sensitivity and resolution can be hugely altered by changing the amount of constituents in the metamaterial, with no further modifications in the structure of the sensor. Moreover, the designed sensor can also be applied to label the average volume fraction of silver in the metamaterial layer and then to estimate its effective constitutive parameters.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 9