Next Article in Journal
Exploring Tactile Stimuli from a Wrist-Worn Device to Manipulate Subjective Time Based on the Filled-Duration Illusion
Previous Article in Journal
Lightweight Anonymous Authentication and Key Agreement Protocol Based on CoAP of Internet of Things
Previous Article in Special Issue
Anisotropy of the ΔE Effect in Ni-Based Magnetoelectric Cantilevers: A Finite Element Method Analysis
 
 
Article

SPR Sensor Based on a Tapered Optical Fiber with a Low Refractive Index Liquid Crystal Cladding and Bimetallic Ag–Au Layers

Institute of Applied Physics, Military University of Technology, 2 Kaliskiego St., 00-908 Warsaw, Poland
*
Author to whom correspondence should be addressed.
Academic Editor: Amir Arbabi
Sensors 2022, 22(19), 7192; https://doi.org/10.3390/s22197192
Received: 26 August 2022 / Revised: 14 September 2022 / Accepted: 20 September 2022 / Published: 22 September 2022
(This article belongs to the Special Issue I3S 2022 Selected Papers)
This paper presents a study of the influence of bimetallic layer covers of a tapered optical fiber surrounded by a low refractive index liquid crystal on the properties of light propagation in the taper structure. This research follows previous works on the effect of monometallic thin films (Au and Ag). In this case, the total thicknesses of the bimetallic layers were h = 10 nm, and the participation of gold and silver was equal. The films were deposited on one side of the tapered waist area. The liquid crystal cells were controlled with a voltage U from 0 to 200 V, with and without amplitude modulation at a frequency of fmod = 5 Hz. For the purposes of this research, spectral characteristics were obtained for a wavelength λ ranging from 550 to 1200 nm. Measurements were carried out at room temperature for three types of rubbed layers orientation—orthogonal, parallel, and twist in relation to the fiber axis. Obtained resonant peaks were compared with the previous results regarding the resonant wavelength, peak width, SNR, and maximum absorption. In the presented paper, the novelty is mainly focused on the materials used and their time stability, as well as corresponding changes in the technological parameters used. View Full-Text
Keywords: surface plasmon resonance; optical fiber taper sensor; liquid crystal device; bimetallic layer; gold; silver surface plasmon resonance; optical fiber taper sensor; liquid crystal device; bimetallic layer; gold; silver
Show Figures

Figure 1

MDPI and ACS Style

Korec, J.; Stasiewicz, K.A.; Jaroszewicz, L.R. SPR Sensor Based on a Tapered Optical Fiber with a Low Refractive Index Liquid Crystal Cladding and Bimetallic Ag–Au Layers. Sensors 2022, 22, 7192. https://doi.org/10.3390/s22197192

AMA Style

Korec J, Stasiewicz KA, Jaroszewicz LR. SPR Sensor Based on a Tapered Optical Fiber with a Low Refractive Index Liquid Crystal Cladding and Bimetallic Ag–Au Layers. Sensors. 2022; 22(19):7192. https://doi.org/10.3390/s22197192

Chicago/Turabian Style

Korec, Joanna, Karol A. Stasiewicz, and Leszek R. Jaroszewicz. 2022. "SPR Sensor Based on a Tapered Optical Fiber with a Low Refractive Index Liquid Crystal Cladding and Bimetallic Ag–Au Layers" Sensors 22, no. 19: 7192. https://doi.org/10.3390/s22197192

Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop