A Multi-Layered Borophene-Silica-Silver Based Refractive Index Sensor for Biosensing Applications Operated at the Infrared Frequency Spectrum

We have presented the borophene based refractive index sensor for the infrared frequency spectrum of 188 to 250 THz (1.2–1.6 µm) range. The proposed structure was formed by using the Silver-borophene-silica-Ag layered structure. The behaviour of the different analyte (with a different refractive ind...

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Main Authors: Abdullah G. Alharbi, Vishal Sorathiya, Sunil Lavadiya
Format: Article
Language:English
Published: MDPI AG 2022-04-01
Series:Photonics
Subjects:
Online Access:https://www.mdpi.com/2304-6732/9/5/279
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author Abdullah G. Alharbi
Vishal Sorathiya
Sunil Lavadiya
author_facet Abdullah G. Alharbi
Vishal Sorathiya
Sunil Lavadiya
author_sort Abdullah G. Alharbi
collection DOAJ
description We have presented the borophene based refractive index sensor for the infrared frequency spectrum of 188 to 250 THz (1.2–1.6 µm) range. The proposed structure was formed by using the Silver-borophene-silica-Ag layered structure. The behaviour of the different analyte (with a different refractive index) material is numerically calculated by placing it on the top of the structure. The behaviour of the structure is identified in terms of absorption, reflectance, physical parameter variation, and oblique angle incident conditions. The presented results provide the basic idea of selecting optimized structure dimensions to get the specific resonating response. This sensor offers the Figure of Merit (FOM) of 444 RIU<sup>−1</sup> with high sensitivity of 660 THz/RIU (4471 nm/RIU). The refractive index sensor also provides wide-angle stability for (0° to 80°) for the wide frequency range (239 to 245 THz and 207 to 209 THz). This sensor is developed on the silver metal layer (not required to separate borophene from its origin metal deposition process) and easily fabricated using standard boron fabrication and layered deposition techniques. The results of the proposed structure make it possible to design a basic biosensor structure. This device is also applicable for various THz and biomedical applications.
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spelling doaj.art-fca728b51df34214bf5af86da4fc96c22023-11-23T12:39:58ZengMDPI AGPhotonics2304-67322022-04-019527910.3390/photonics9050279A Multi-Layered Borophene-Silica-Silver Based Refractive Index Sensor for Biosensing Applications Operated at the Infrared Frequency SpectrumAbdullah G. Alharbi0Vishal Sorathiya1Sunil Lavadiya2Department of Electrical Engineering, Jouf University, Sakaka 42421, Saudi ArabiaDepartment of Information and Communication Technology, Marwadi University, Rajkot 360002, IndiaDepartment of Information and Communication Technology, Marwadi University, Rajkot 360002, IndiaWe have presented the borophene based refractive index sensor for the infrared frequency spectrum of 188 to 250 THz (1.2–1.6 µm) range. The proposed structure was formed by using the Silver-borophene-silica-Ag layered structure. The behaviour of the different analyte (with a different refractive index) material is numerically calculated by placing it on the top of the structure. The behaviour of the structure is identified in terms of absorption, reflectance, physical parameter variation, and oblique angle incident conditions. The presented results provide the basic idea of selecting optimized structure dimensions to get the specific resonating response. This sensor offers the Figure of Merit (FOM) of 444 RIU<sup>−1</sup> with high sensitivity of 660 THz/RIU (4471 nm/RIU). The refractive index sensor also provides wide-angle stability for (0° to 80°) for the wide frequency range (239 to 245 THz and 207 to 209 THz). This sensor is developed on the silver metal layer (not required to separate borophene from its origin metal deposition process) and easily fabricated using standard boron fabrication and layered deposition techniques. The results of the proposed structure make it possible to design a basic biosensor structure. This device is also applicable for various THz and biomedical applications.https://www.mdpi.com/2304-6732/9/5/279boropheneabsorberterahertzbiosensorrefractive index sensorinfrared
spellingShingle Abdullah G. Alharbi
Vishal Sorathiya
Sunil Lavadiya
A Multi-Layered Borophene-Silica-Silver Based Refractive Index Sensor for Biosensing Applications Operated at the Infrared Frequency Spectrum
Photonics
borophene
absorber
terahertz
biosensor
refractive index sensor
infrared
title A Multi-Layered Borophene-Silica-Silver Based Refractive Index Sensor for Biosensing Applications Operated at the Infrared Frequency Spectrum
title_full A Multi-Layered Borophene-Silica-Silver Based Refractive Index Sensor for Biosensing Applications Operated at the Infrared Frequency Spectrum
title_fullStr A Multi-Layered Borophene-Silica-Silver Based Refractive Index Sensor for Biosensing Applications Operated at the Infrared Frequency Spectrum
title_full_unstemmed A Multi-Layered Borophene-Silica-Silver Based Refractive Index Sensor for Biosensing Applications Operated at the Infrared Frequency Spectrum
title_short A Multi-Layered Borophene-Silica-Silver Based Refractive Index Sensor for Biosensing Applications Operated at the Infrared Frequency Spectrum
title_sort multi layered borophene silica silver based refractive index sensor for biosensing applications operated at the infrared frequency spectrum
topic borophene
absorber
terahertz
biosensor
refractive index sensor
infrared
url https://www.mdpi.com/2304-6732/9/5/279
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