Characteristics of Ultrasensitive Hexagonal-Cored Photonic Crystal Fiber for Hazardous Chemical Sensing

Maidi, Abdul Mu’iz; Shamsuddin, Norazanita; Wong, Wei Ru; Kaijage, Shubi; Begum, Feroza

doi:10.3390/photonics9010038

Cited by 14 publications

(5 citation statements)

References 40 publications

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“…Confinement loss L c is the quantification of loss of light in a waveguide, and it is defined as [30][31][32]:…”

Section: Methodsmentioning

confidence: 99%

Detection of different drinkable milk using photonic crystal fibre biosensor in IR regime

Maidi,

Kalam,

Begum

2024

Phys. Scr.

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A simplified PCF sensor has been designed to detect the different drinkable milk that includes camel, cow and buffalo milk, and can also assess its quality. The sensor features a singular circular core design and two layers octagonal cladding air holes that was analysed using the Finite Element Method technique in COMSOL Multiphysics software and determine the sensing and optical performance parameters: power fraction, relative sensitivity, confinement loss, effective area, numerical aperture, V-Parameter, spot size, and beam divergence. At the optimum wavelength of 6.0 µm, the relative sensitivities are 96.58%, 96.78%, and 96.84%, and confinement losses of 3.51 × 10−8 dB/m, 1.47 × 10−8 dB/m, and 8.59 × 10−9 dB/m, for camel, cow, and buffalo milk, respectively. The efficacy of the proposed PCF structure for sensing applications in the dairy industry in distinguishing between different types of milk is evidenced by these findings. Moreover, the results of confinement loss and chromatic dispersion suggest potential applications of this design in optical communication.

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“…Confinement loss L c is the quantification of loss of light in a waveguide, and it is defined as [30][31][32]:…”

Section: Methodsmentioning

confidence: 99%

Detection of different drinkable milk using photonic crystal fibre biosensor in IR regime

Maidi,

Kalam,

Begum

2024

Phys. Scr.

Self Cite

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“…Confinement loss Lis the measure of light signal loss from the octagonal core to the surrounding cladding area, which is an unwanted occurrence. The leakage loss can be determined by [33][34][35]:…”

Section: Methodsmentioning

confidence: 99%

Unsafe food additive sensing through octagonal-core photonic crystal fibre sensor

2023

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To detect food additives, a simple photonic crystal fibre design based on an octagonal hole and hollow circular cladding holes in two layers has been introduced. The numerical study of the design is conducted by simulation in the COMSOL Multiphysics software with the infiltrated test analytes: saccharin, sorbitol, and butyl acetate, operating in the wavelength variation from 1.6 to 4.0 µm. The performance of the proposed sensor is determined by analysing the principal optical parameters: effective refractive index, power fraction, relative sensitivity, confinement loss, chromatic dispersion, propagation constant, V-parameter, spot size, and beam divergence. At the optimal wavelength of 2.0 µm, the sensor design depicts high relative sensitivities of 98.06% for saccharin, 97.05% for sorbitol, 95.81% for butyl acetate, and 3.82 × 10−23 dB/m for saccharin, 3.44 × 10−22 dB/m for sorbitol, and 1.81 × 10−21 dB/m for butyl acetate for confinement loss, which is extremely low. Hence, the proposed food additive sensor is suitable for actual sensing applications based on these obtained results.

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“…Relative sensitivity refers to the ratio of the change in the effective refractive index of the fibre core with respect to the change in the refractive index of the surrounding medium. It quantifies the sensing capabilities of the PCF sensor, and denoted by [35,36]:…”

Section: Methodsmentioning

confidence: 99%

Performance evaluation of photonic crystal fibre sensor for controlled drugs detection: a simulation approach

Maidi,

Salam,

Zou

et al. 2023

Phys. Scr.

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This study proposes a simple and efficient Photonic Crystal Fibre sensor design for the detection of controlled drugs such as cocaine, amphetamine, and ketamine. The design uses a pentagonal core hole and circular cladding air holes in 2 layers, made of fused silica substrate. The sensing performance of the proposed PCF design is evaluated using COMSOL Multiphysics and Finite Element Method, operating in the visible and infrared range from 0.4 to 3.2 μm. Results show that the proposed PCF design achieves high relative sensitivities of 99.55%, 99.75%, and 99.99% for cocaine, amphetamine, and ketamine, respectively, at the optimum wavelength of 0.4 μm. Additionally, the design is robust, showcasing minimal variations in relative sensitivities with changes in pitch distance, air hole diameter, and core hole length. These findings make the proposed PCF design a promising candidate for practical controlled drug sensing.

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Characteristics of Ultrasensitive Hexagonal-Cored Photonic Crystal Fiber for Hazardous Chemical Sensing

Cited by 14 publications

References 40 publications

Detection of different drinkable milk using photonic crystal fibre biosensor in IR regime

Detection of different drinkable milk using photonic crystal fibre biosensor in IR regime

Unsafe food additive sensing through octagonal-core photonic crystal fibre sensor

Performance evaluation of photonic crystal fibre sensor for controlled drugs detection: a simulation approach

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