Chemical sensing through photonic crystal fiber: sulfuric acid detection

Podder, Etu; Hossain, Md. Bellal; Jibon, Rayhan Habib; Bulbul, Abdullah Al-Mamun; Mondal, Himadri Shekhar

doi:10.1007/s12200-019-0903-8

Cited by 59 publications

(19 citation statements)

References 29 publications

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“…is parameter is directly proportional to the power fraction (P f ), which quantifies the amount of light power present in the core compared with the entire injected power. e relative sensitivity for the proposed BCS is calculated using 4 International Journal of Optics…”

Section: Mathematical Methods For Sensing Performance Evaluationmentioning

confidence: 99%

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Design and Numerical Analysis of a Novel Rectangular PCF (R-PCF)-Based Biochemical Sensor (BCS) in the THz Regime

Bulbul

Kouzani

Mahmud

et al. 2021

International Journal of Optics

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A novel PCF-based sensor has been presented in this paper to sense different chemicals and biocomponents. The proposed biochemical sensor (BCS) comprises a simple arrangement of rectangular holes. The competence of this BCS in detecting analytes is evaluated employing the full-vector finite element method (FEM). Performance metrics prove the competence of this BCS in sensing various analytes that have a refractive index in the range of 1.33–1.48. The proposed BCS shows ultralower values for both the bulk absorption and confinement loss. This BCS attains a maximum of about 95.82% relative sensitivity at 2.5 THz. Also, the dispersion for this sensor is only 0.12 ± 0.011 ps/THz/cm at the same point of interest. These results prove that the proposed BCS will play a key role in sensing toxic chemicals, illegal drugs, biocomponents, etc. Besides, the simple rectangle-based PCF structure ensures the feasibility of fabrication by practicing the existing fabrication strategies.

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Section: Mathematical Methods For Sensing Performance Evaluationmentioning

confidence: 99%

“…e terahertz (THz) band is gaining high popularity as an apposite operating region for diverse application fields like spectroscopy, sensing, astrophysics, hereditary, biomedical, and telecommunication [1][2][3][4][5][6][7][8]. is band offers a broad frequency band extending from 0.1 to 10 THz.…”

Section: Introductionmentioning

confidence: 99%

Design and Numerical Analysis of a Novel Rectangular PCF (R-PCF)-Based Biochemical Sensor (BCS) in the THz Regime

Bulbul

Kouzani

Mahmud

et al. 2021

International Journal of Optics

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“…The realized relative sensitivities for the targeted analytes ethanol, benzene, and water, were 78.8%, 77.8%, and 69.7% at 1.3 THz, respectively. Later, a hybrid PCF [ 23 ] including circular and elliptical air holes was reported for detecting the concentration of H

solutions. The relative sensitivity was as high as 63.4%.…”

Section: Introductionmentioning

confidence: 99%

A Highly Birefringent Photonic Crystal Fiber for Terahertz Spectroscopic Chemical Sensing

Yang

Zhang

Shi

et al. 2021

Sensors

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A photonic crystal fiber (PCF) with high relative sensitivity was designed and investigated for the detection of chemical analytes in the terahertz (THz) regime. To ease the complexity, an extremely simple cladding employing four struts is adopted, which forms a rectangular shaped core area for filling with analytes. Results of enormous simulations indicate that a minimum 87.8% relative chemical sensitivity with low confinement and effective material absorption losses can be obtained for any kind of analyte, e.g., HCN (1.26), water (1.33), ethanol (1.35), KCN (1.41), or cocaine (1.50), whose refractive index falls in the range of 1.2 to 1.5. Besides, the PCF can also achieve high birefringence (∼0.01), low and flat dispersion, a large effective modal area, and a large numerical aperture within the investigated frequency range from 0.5 to 1.5 THz. We believe that the proposed PCF can be applied to chemical sensing of liquid and THz systems requiring wide-band polarization-maintaining transmission and low attenuation.

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“…For the last two decades, researchers have realized that the photonic crystal fiber (PCF) can provide efficient outcomes, especially for sensing applications. Recently, liquid sensing, gas sensing, and chemical sensing fields are explored by different kinds of PCF sensors [4][5][6][7][8][9]. Besides, the intensity measurement strategy of EM waves has also made the PCF capable of operating remotely.…”

Section: Introductionmentioning

confidence: 99%

Novel Hollow Octagonal Core Photonic Crystal Fiber (PCF) based Cholesterol Sensor

Bulbul

Podder

Faragallah

et al. 2021

Preprint

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Cholesterol, also known as the pulpy fat of human body, may cause the body vulnerable to heart malady by filling blood-vessel with fatty substances. This urges a precise, simple, and effective method of cholesterol detection. Considering this, a novel hollow equilateral-octagon core PCF model has been presented as a cholesterol sensor. The sensor is modeled and simulated using finite element method (FEM). Multiple performance metrics suggests the effectiveness of the proposed sensor model. The relative sensitivity attained for the model is 92.34% at optimum frequency (OF), 3.6THz. Besides, the model shows ultra-lower confinement loss of 3.77×10− 18cm−1 at OF along with standard values for other performance metrics. In addition, the feasible implementation of the model by exercising existing fabrication strategies ensures the practicability of the proposed sensor.

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Chemical sensing through photonic crystal fiber: sulfuric acid detection

Cited by 59 publications

References 29 publications

Design and Numerical Analysis of a Novel Rectangular PCF (R-PCF)-Based Biochemical Sensor (BCS) in the THz Regime

Design and Numerical Analysis of a Novel Rectangular PCF (R-PCF)-Based Biochemical Sensor (BCS) in the THz Regime

A Highly Birefringent Photonic Crystal Fiber for Terahertz Spectroscopic Chemical Sensing

Novel Hollow Octagonal Core Photonic Crystal Fiber (PCF) based Cholesterol Sensor

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