Zeonex based decagonal photonic crystal fiber (D-PCF) in the terahertz (THz) band for chemical sensing applications

Sen, Shuvo; Abdullah-Al-Shafi, Md.; Sikder, Abu Sayed; Hossain, Md. Selim; Azad, Mir Mohammad

doi:10.1016/j.sbsr.2020.100393

Cited by 35 publications

(6 citation statements)

References 30 publications

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“…Ahmed achieved relative sensitivity and a higher containing loss of 57 percent by the use of octagonal PCF [12]. The microstructure PCF was discussed by S Sen et al [13], which indicates a 79 percent relative sensitively with a higher loss in containment. B K Paul et al perform a relative sensitivity of 66 percent using the PCF-based chemical sensor [14].…”

Section: Introductionmentioning

confidence: 97%

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: Introductionmentioning

confidence: 97%

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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“…Based on the porous structure of photonic crystal fibers, surface plasmon resonance (SPR) produced by filling metal rods or coating metal films has recently become a hot spot in the field of optical fiber sensors. In particular, researches on the SPR coated with the metal film on the polished surface of the D-shaped photonic crystal fiber (D-PCF) are more attractive, including the refractive index [1], methane [2], temperature [3], magnetic field [4], strain, [5] and biochemistry [6] sensors. Most of the above studies are conducted by the loss spectrum which has some disadvantages.…”

Section: Introductionmentioning

confidence: 99%

D-Shaped Tellurite Photonic Crystal Fiber Hydrogen and Methane Sensor Based on Four-Wave Mixing With SPR Effect

Liu

Chen

et al. 2022

Photonic Sens

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A new D-shaped tellurite photonic crystal fiber sensor based on the four-wave mixing (FWM) effect with the surface plasmon resonance (SPR) effect is designed and optimized. The substrate of the D-shaped photonic crystal fiber (D-PCF) is tellurite glass, and the polished surface is plated with the gold film and hydrogen gas-sensitive film. An air hole of the inner cladding, which is plated with the gold film and methane gas-sensitive film, is selected as the second sensing channel to simultaneously measure the concentration of hydrogen and methane. Based on the four-wave mixing, the wavelength shifts of the Stokes and anti-Stokes spectra resulting from the variation of the gas concentration can be used to accurately detect the concentrations of methane and hydrogen. Meanwhile, it is found that the SPR effect can increase the wavelength shifts, which means the sensitivity of methane and hydrogen augment. After parameter optimization, the maximum sensitivities of methane and hydrogen are 4.03 nm/% and −14.19 nm/%, respectively. Both the linearities are up to 99.9%. The resolution of methane is 1.25×10−2% and hydrogen is 7.14×10−3%. Moreover, the fiber length of this sensor is only 20 mm, which is conducive to the construction of a compact or ultra-compact embedded FWM fiber sensor.

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“…PCF is a modern fiber that has air holes around the cladding and core [18], unlike other optical fibers which only consist of a core, cladding, coating, orBraggg lattice fiber [19] PCF has air holes around the core which has many geometric structures reported, PCF is usually composed of fused silica material. However, recently many studies have reported using different materials such as using topas [20], Zeonex [21], SF2 [22], and BK7 glass [23]. Although from research it was reported that PCF with silica material was able to provide relatively high sensitivity, high effective material loss, and low confinement loss.…”

Section: Introductionmentioning

confidence: 99%

Hexagonal two layers-photonics crystal fiber based on surface plasmon resonance with gold coating biosensor easy to fabricate

Azhar

Ramadhan

Saktioto

et al. 2022

IJEECS

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<span>In this paper, we investigate a hexagonal two-layer photonic crystal fiber based on surface plasmon resonance (HT-PCF-SPR) which is easy to fabricate as a sensor for detecting the refractive index of analytes. After performing numerical simulations using COMSOL multiphysics based on the finite element method (FEM), it was found that the HT-PCF-SPR could detect the analyte's refractive index in the range 1.34-1.37 RIU and in the wavelength range from 730 nm to 810 nm. The plasmonic material used in the design is gold with a thickness of 40 nm which is located outside the layer and in two opposite air holes in the core. The HT-PCF-SPR design has good performance in detecting analytes, it is found that the sensitivity in detecting analytes is 2,000 nm/RIU, meaning that every 1 RIU shift of analyte shifts the wavelength by 2000 nm. Meanwhile, the sensor resolution obtained from the design is 6.67×10-5 RIU, and it is found that the larger the air hole, the greater the confinement loss value.</span>

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Zeonex based decagonal photonic crystal fiber (D-PCF) in the terahertz (THz) band for chemical sensing applications

Cited by 35 publications

References 30 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

D-Shaped Tellurite Photonic Crystal Fiber Hydrogen and Methane Sensor Based on Four-Wave Mixing With SPR Effect

Hexagonal two layers-photonics crystal fiber based on surface plasmon resonance with gold coating biosensor easy to fabricate

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