Detection of primary chemical analytes in the THz regime with photonic crystal fiber

Jibon, Rayhan Habib; Rahaman, Md. Ekhlasur; Alahe, Mohammad Ashik

doi:10.1016/j.sbsr.2021.100427

Cited by 22 publications

(3 citation statements)

References 16 publications

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“…Now the measurement of Rs, this property contains the main theme of any PCF sensing as it measures the incident light's interaction with the analytes. An established equation [15] for the measurement of Rs is given below.…”

Section: Analysis Of Resultsmentioning

confidence: 99%

“…This property is measured with Eq. 3 [15], and its response curve with different concentrated glucose samples is presented in Fig. 4.…”

Section: Fig 3 Depiction Of Rs For Differently Concentrated Glucose S...mentioning

confidence: 99%

“…In the field of chemical sensing, we have published some research articles [15][16][17] where we found satisfying optical properties like relative sensitivities (Rs), Aeff, EML, Cl, and NAp. However, in order to deal with the feasibility of sensor fabrication and the upgradation of different optical properties, here we highlighted a mono-rectangular cored symmetrical PCF (MRC-SPCF) sensor that is operable in 1-2 THz regions and can be used for sensing differently concentrated glucose solutions.…”

Section: Introductionmentioning

confidence: 98%

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Design of a Mono-Rectangular Cored Symmetrical PCF Structure for Sensing Differently Concentrated Glucose Solutions in THz Regime

Jibon,

Rahaman,

Ahsan

et al. 2024

International Conference on Functional Materials for Energy and Manufacturing (ICFMEM)

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This research illustrates a simple mono-rectangular cored symmetrical PCF (MRC-SPCF) sensor that is used for detecting different concentrated glucose samples (from 0% to 60%). The simulations are carried out within 1-2 THz regimes based on the principles of the finite element method (FEM). After a completed investigation we have found the values of a range of optical properties that are comparable to the previously published results. From our investigation, we found 94.43% relative sensitivity with a negligible effective material loss (EML) of 0.004 cm-1 at 1.8 THz respectively for 60% and 20% concentrated glucose solution. Besides this proposed MRC-SPCF sensor also expresses almost zero confinement losses for all the glucose samples within the operated frequency range. Hence we can admire that this proposed MRC-SPCF sensor can be a potential aspirant in chemical sensing which can make an impact both in the medical and industrial sectors.

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Section: Analysis Of Resultsmentioning

confidence: 99%

“…This property is measured with Eq. 3 [15], and its response curve with different concentrated glucose samples is presented in Fig. 4.…”

Section: Fig 3 Depiction Of Rs For Differently Concentrated Glucose S...mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 98%

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Design of a Mono-Rectangular Cored Symmetrical PCF Structure for Sensing Differently Concentrated Glucose Solutions in THz Regime

Jibon,

Rahaman,

Ahsan

et al. 2024

International Conference on Functional Materials for Energy and Manufacturing (ICFMEM)

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Numerical Analysis of a Photonic Crystal Fiber‐Based Biosensor for the Detection of Vibrio cholera and Escherichia coli Bacteria in the THz Regime

Alhamss,

Taya,

Almawgani

et al. 2023

Physica Status Solidi (a)

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To ensure good water quality, microbiological contamination in water must be detected. This process is made easier and more distinctive by using a photonic crystal fiber (PCF), which offers outstanding optical sensing capabilities. In this work, a PCF sensor model is proposed for detecting two types of waterborne bacteria, namely Vibrio Cholera, and Escherichia Coli bacteria. The core region of the proposed PCF sensor is made up of a single rectangle and the cladding region has 32 rectangular air holes that have the same height and width as the core rectangle. Zeonex is employed as the fiber material. Using Comsol 5.6 which is based on the finite element method, the model is numerically analyzed and structured. The simulation verifies the effectiveness of the proposed PCF to detect the analyte samples. Numerous performance indicators are calculated at an operating of 2.8 THz. Simulation results show that the proposed PCF sensor is promising. Extremely high relative sensitivity (97.996%), lower effective area (6.3575×104 μm2), higher numerical aperture (0.23319), lower effective material loss (0.0034 cm‐1), and lower confinement loss (0.1×10‐14) have been obtained which indicate an efficient PCF sensor. Additionally, the simplicity of the PCF design ensures the fabrication possibilities of the proposed sensor.This article is protected by copyright. All rights reserved.

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Compact Photonic Crystal Fiber for Sensing Applications in the THz Regime

Ayyanar¹,

Panda²,

Rajaram³

et al. 2022

Terahertz Devices, Circuits and Systems

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Detection of primary chemical analytes in the THz regime with photonic crystal fiber

Cited by 22 publications

References 16 publications

Design of a Mono-Rectangular Cored Symmetrical PCF Structure for Sensing Differently Concentrated Glucose Solutions in THz Regime

Design of a Mono-Rectangular Cored Symmetrical PCF Structure for Sensing Differently Concentrated Glucose Solutions in THz Regime

Numerical Analysis of a Photonic Crystal Fiber‐Based Biosensor for the Detection of Vibrio cholera and Escherichia coli Bacteria in the THz Regime

Compact Photonic Crystal Fiber for Sensing Applications in the THz Regime

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