Design of a chemical sensing circular photonic crystal fiber with high relative sensitivity and low conﬁnement loss for terahertz (THz) regime

Hossain, Md. Selim; Sen, Shuvo; Hossain, Md. Mokarrom

doi:10.1016/j.ijleo.2020.165359

Cited by 26 publications

(11 citation statements)

References 23 publications

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“…One more important property of optical fiber is the power fraction that is determined with the total amount of power through the PCF fiber. Here, the power fraction is calculated by the following equations [29][30]:…”

Section: Analysis Of Optical Propertiesmentioning

confidence: 99%

“…In wavelength, this range corresponds to 0.1 mm to infrared to 1mm microwave. The THz frequency spectrum shows interesting development in the field of sensors [1][2][3], pharmaceutical medical testing [4], restorative spectrometry [5], biomedical imaging [6], therapeutic diagnostics [7][8], DNA hybridization [6], communications [9], etc. The radiation of terahertz (THz) ranges has been also utilized within the areas of diagnostics such as skin cancer, basal cell carcinoma, and dysplastic skin nevi, etc.…”

Section: Introductionmentioning

confidence: 99%

“…Besides, hollow-core photonic crystal fiber and polymer fibers can be connected for THz communication since of their outstanding waveguide perspectives [9][10]. Recently, porous core PCFs have gained considerable interest because of their adaptability in structural nature and required optical controlling possessions such as high core power fraction, lower effective material loss, lower dispersion, lower bending loss, high nonlinearity [18][19][20][21][22][23].…”

Section: Introductionmentioning

confidence: 99%

“…Many researchers have been examined the performance of PCF structures previously using the terahertz (THz) waveguides [26][27][28][29][30]. Islam et al [31] proposed a porous-core spiral shape photonic crystal fiber (PCF).…”

Section: Introductionmentioning

confidence: 99%

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Design and analysis of the effect of Zeonex based octagonal photonic crystal fiber for different types of communication applications

et al. 2021

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In this present work, a novel structure of octagonal cladding with two elliptical air holes based on photonic crystal fiber (O-PCF) has been presented for the application of different types of communication areas within the terahertz (THz) wave propagation. There are five layers of octagonal design shape of circular air holes (CAH) in cladding region with elliptical design shape of two air holes in core area has been reported in this research work. This O-PCF fiber has been investigated by the perfectly matched layers (PML) with the finite element method (FEM). After the simulation process, our proposed O-PCF fiber shows a low effective material loss (EML) of 0.0162 cm −1 , the larger effective area of 5.88×10-8 m2, the core power fraction (PF) of 80%, the scattering loss of 1.22×10 -10 dB/km, and the confinement loss of 3.33×10 -14 dB/m at the controlling region of 1 terahertz (THz). Due to its excellent characteristics, this proposed O-PCF fiber gives proficient transmission of broadband terahertz waves of signals. Moreover, for different kinds of optical communication applications and biomedical signals, our suggested O-PCF fiber will be highly perfect in the terahertz (THz) regions.

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Section: Analysis Of Optical Propertiesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Design and analysis of the effect of Zeonex based octagonal photonic crystal fiber for different types of communication applications

et al. 2021

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“…Photonic crystal ber (PCF) has some distinct advantages over traditional ber and is a boon to modern ber-optic communication. This boosts communications sectors like telephony, various sensing types, and so forth [5][6]. Total internal re ection is the primary method for propagating light throughout a PCF with minimum con nement loss [7], high nonlinearity [8][9][10], zerodispersion [11], and other properties.…”

Section: Introductionmentioning

confidence: 99%

Efficient way for chemicals identification using hexagonal fiber with the terahertz (THz) band

et al. 2022

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To detect chemicals, we proposed a photonic crystal ber (PCF) with hexagonal cladding and a hexahedron core (THz). Circular air holes (CAHs) in the vestibule provide the basis of the suggested sensor. To develop and evaluate our suggested hexahedron PCF sensor, we employed the nite element (FEM) technique and perfectly matched layers (PML), which utilized the optical parameters numerically.Here, 92.65%, 95.25%, and 90.70% are relatively sensitive, and con ning losses are low. the value 5.40×10 − 08 , 6.70×10 − 08 dB/m, and 5.75×10 − 08 dB/m for three chemicals such as Ethanol (n = 1.354), Benzene (n = 1.366) and Water (n = 1.330) and effective material loss (EML) of 0.00694 cm − 1 . The suggested Hx-PCF sensor has been successfully tested at 1 THz. We are certain that the suggested sensor's optimal geometric structure can be manufactured and that it can contribute to real-world applications in biomedicine and industry. In terahertz areas, our suggested PCF ber is also suited for a wide range of medical signals and applications (THz).

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Ultrahigh sensitivity terahertz refractive index sensor based on four‐inscribed hole defect photonic crystal structure

Wen,

Sun,

Liang

et al. 2023

Micro & Optical Tech Letters

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We proposed and investigated an ultrahigh sensitivity terahertz (THz) refractive index sensor based on four‐inscribed hole defect photonic crystal structure. Due to the formation of resonant modes, the sensing properties can be obtained by shifting the sharp resonance in the transmission spectrum as changing of the analyte refractive index. In addition, the influence of structure parameters on the sensing performance is explored and demonstrated numerically. The numerical results illustrate that the Q‐factor and figure of merit reach 323.71 and 167.188 can be obtained under the optimized structural parameters. In particular, an ultrahigh sensitivity of 198.8 μm/RIU can be realized in the frequency range of 0.777–0.779 THz. The proposed sensor may find significant applications in biochemical sensing systems.

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Design of a chemical sensing circular photonic crystal fiber with high relative sensitivity and low conﬁnement loss for terahertz (THz) regime

Cited by 26 publications

References 23 publications

Design and analysis of the effect of Zeonex based octagonal photonic crystal fiber for different types of communication applications

Design and analysis of the effect of Zeonex based octagonal photonic crystal fiber for different types of communication applications

Efficient way for chemicals identification using hexagonal fiber with the terahertz (THz) band

Ultrahigh sensitivity terahertz refractive index sensor based on four‐inscribed hole defect photonic crystal structure

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