Single-mode spiral shape fiber based liquid sensor with ultra-high sensitivity and ultra-low loss: Design and analysis

Islam, Ibadul; Ahmed, Kawsar; Islam, Shadidul; Paul, Bikash Kumar; Sen, Shuvo; Chowdhury, Shyamal; Bahar, Ali Newaz; Miah, Mohammad Badrul Alam

doi:10.1016/j.kijoms.2017.05.005

Cited by 16 publications

(6 citation statements)

References 54 publications

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“…In recent times, however, the sol-gel process for the manufacture of the PCF structure with optical sensors is most commonly used and is better suited for the manufacture of the PCF structure based on sensors [21,[30][31][32][33][34]. In addition, the selective filling technique is better suited for filling or loading chemical products into the core areas with any PCF fiber structure [35][36][37][38][39][40][41]. Thus, by applying the latest technology production process for filling, up technique fabrication process, we achieved better guiding properties like effective area, relative sensitivity, power fraction, confinement loss, and effective mode index.…”

Section: Output Analysis and Discussionmentioning

confidence: 99%

Sensitivity analysis for detecting chemicals by the optical chemical sensor based Photonic Crystal Fiber (PCF) in the Terahertz (THz) regime

Hossain¹,

Faruq²,

Rana³

et al. 2021

Phys. Scr.

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This research article demonstrates a good simulation result for identifying and detecting various industrial chemicals in a Terahertz (THz) waveguide with a new heptagonal, five layers of heptagonal photonic fiber elliptic form, heptagonal clading shape (H-PCF). COMSOL 4.2 software based on finite element (FEM) methods and perfectly matched layers check our composition (PML). The different chemicals are also differentiated and identified by each other in different parameters H-PCF fibers show a high relative sensitivity of ethanol of approximately 86.50 percent after numerical analysis, Benzene around 89.35%, and water around 85.15% at a frequency of around 0.7 THz. In our experiment, we obtained very low confinement losses at 1 terahertz (THz) such as 5.95×10−08 dB/m for Ethanol 6.67×10−08 dB/m for Benzene, and 5.80×10−08 dB/m for water. Regarding these results, we can strongly recommend that our proposed heptagonal photonic crystal fiber (H-PCF) will be more congenial in biomedical, bio-medicine, and industrial areas for the identification and detection of various types of chemicals with the help of a THz waveguide.

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Section: Output Analysis and Discussionmentioning

confidence: 99%

Sensitivity analysis for detecting chemicals by the optical chemical sensor based Photonic Crystal Fiber (PCF) in the Terahertz (THz) regime

Hossain¹,

Faruq²,

Rana³

et al. 2021

Phys. Scr.

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“…In addition, K 0 =2π/λ describes the wave vector, where λ defines the operating wavelength, E is the electric field and n is the refractive index. The depth of the PML is kept at 10% to attain boundary condition [29,30]. The depth of PML means that the outermost.…”

Section: Structure Design and Principlementioning

confidence: 99%

“…The refractive index of the soybean biodiesel as a function of the concentration of soybean biodiesel (C%) will be calculated from equation (2) [31,32]. The relative sensitivity of the proposed PCF can be numerically calculated by the following equations equation (3) and equation (4) where r is relative sensitivity, P power fraction of core region and total region of PCF, n r is the refractive index of analyte at core region (here soybean biodiesel) and n eff is the effective refractive index of PCF [30,31]. The definition of the parameters from equations (2) to (4) are as follow n sb is the refractive index of Soybean biodiesel.…”

Section: Structure Design and Principlementioning

confidence: 99%

“…High negative dispersion [1], lower bit length [2], beam divergence [3], high numerical aperture [4], high nonlinearity [5], and endless single-mode [6] are few special features of PCF over conventional optical fibers. There are two types of PCF fibers based on light guiding mechanism: index guiding (IG-PCF) and photonic band gap (PBG-PCF) [7]. In the IG-PCF, the refractive index of the cladding is lower than that of the core.…”

Section: Introductionmentioning

confidence: 99%

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Design of hexa-wheel sectored photonic crystal fiber for soybean biodiesel sensing

Asaduzzaman¹,

Rehana²,

Aziz³

et al. 2022

Phys. Scr.

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In this research, a novel wheel-shaped hexa sectored photonic crystal fiber (PCF) with an elliptical hole at the center of the core has been proposed as a soybean biodiesel sensor. The finite element method (FEM) method and perfectly matched layer (PML) have been used for the analysis of the proposed sensor. The designed PCF is suitable to operate through a wide operating frequency from 0.5 to 2 THz. The mainstay of the numerical investigations is significantly based on the concentration of soybean biodiesel, the ellipticity of the core and the change of temperature as well. The proposed hexa-wheel PCF sensor shows a high relative sensitivity of 89.03%, lower confinement loss of 2.3×10-10, high birefringence of 3.5×10-4 (dB/m) and low material loss (EML) of 0.207 cm-1. The presented sensor is very simple and easy to fabricate. In this regard, the designed structure could be of a wide interest through the detection of different biodiesels and liquids as well.

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“…Currently, fabrication procedures such as boring, sol-gel, passageway stacking, stacking, and attraction are widely used to make PCFs. However, recently, the sol-gel [31][32][33][34][35][36][37] technique is more effective in making sensor PCFs. A sol-gel technique for fabricating PCFs with varying structures was proposed, allowing the freedom to adjust the air-hole shape, size, and spacing.…”

Section: Fabrication Feasibilitymentioning

confidence: 99%

Photonic Crystal Fiber Sensor for the Detection of Different Hazardous Gases

Caroline

Nizar

Krishnan

2021

Preprint

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Three different Photonic Crystal Fiber (PCF) gas sensors are designed to detect five different gases for a wide range of wavelengths. The three unique configurations are designed based on four outer Elliptical cores PCF (4E-PCF), four outer Circular cores (4C-PCF) PCF, and different Eight Elliptical cores PCF (8E-PCF) to analyze and sense the light interface with applied gases. For three proposed gas sensors, the sensing parameters for five different hazardous gases, such as relative sensitivity, effective area, birefringence and dispersion, are acquired. The five different gases considered for the sensor investigation are Sulfur trioxide [SO3] (20oC), Tetracholorosilane [SiCl4], Tetracholoromethane [CCl4], Turpentine [C10H16], Tin Terra chloride [SnCl4]. Among the three designs, 8E-PCF yields a maximum sensitivity of 75.75%, an effective area of 2.45µm2, and a birefringence of 0.0421 for SnCl4 gas.

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Single-mode spiral shape fiber based liquid sensor with ultra-high sensitivity and ultra-low loss: Design and analysis

Cited by 16 publications

References 54 publications

Sensitivity analysis for detecting chemicals by the optical chemical sensor based Photonic Crystal Fiber (PCF) in the Terahertz (THz) regime

Sensitivity analysis for detecting chemicals by the optical chemical sensor based Photonic Crystal Fiber (PCF) in the Terahertz (THz) regime

Design of hexa-wheel sectored photonic crystal fiber for soybean biodiesel sensing

Photonic Crystal Fiber Sensor for the Detection of Different Hazardous Gases

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