Investigation of bandgap properties in one-dimensional binary superconductor–dielectric photonic crystal: TE case

Taya, Sofyan A.; Ramahi, Omar M.; Abutailkh, Mariam A.; Doghmosh, Nael; Nassar, Zaher M.; Upadhyay, Anurag; Çolak, İlhami

doi:10.1007/s12648-021-02151-9

Cited by 23 publications

(15 citation statements)

References 29 publications

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“…To examine the optical characteristics of 1D PHC, the TrMx approach offers a straightforward and adaptable method. The characteristic matrix of one layer ( Z j ) can be expressed as [ 8 ]

Z_{j} = [\begin{matrix} cos false(δ_{j} false) & \frac{i sin false(δ_{j} false)}{γ_{j}} \\ - i γ_{j} sin false(δ_{j} false) & cos false(δ_{j} false) \end{matrix}]

…”

Section: Transfer Matrix Methodsmentioning

confidence: 99%

“…δ j is the phase difference of the light wave as it travels through layer j [ 21 ]

δ_{j} = \frac{2 π}{λ} n_{j} d_{j} cos θ_{j}

where d j is the layer's thickness and n j is the layer's RIX. The angle of incidence into the layer, denoted by

θ_{j}

, is expressed as a function of the initial incidence angle

θ_{0}

as [ 8 ]

cos θ_{j} = \sqrt{1 - {(\frac{n_{0} sin false(θ_{0} false)}{n_{j}})}^{2}}

…”

Section: Transfer Matrix Methodsmentioning

confidence: 99%

“…The occurrence of photonic bandgaps (PHBGs) in the transmission spectra of PHCs is a significant property. [ 8,9 ] Consequently, a PHC has been widely utilized in a variety of applications, including a narrowband filter, [ 10 ] optical mirror, [ 11 ] sensor, [ 12 ] absorber, [ 13 ] optical camouflage, [ 14 ] and polarization manipulating device. [ 15 ] The fabrication of PHCs for the visible and infrared spectra was thought to be well‐matched with its scaling factor from nano‐ to microscales, [ 16 ] which has led to growing interest in optical PHC sensors.…”

Section: Introductionmentioning

confidence: 99%

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An Efficient Photonic Crystal‐Based Chemical Sensor for the Detection of Isopropanol, Ethanol, and Acetone

Srour

Taya

Çolak

et al. 2023

Physica Status Solidi (a)

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For the improvement of daily needs, the use of many chemicals is growing rapidly. Some of these compounds are harmful to human health. Moreover, due to the wide range of applications in industry, it has become necessary to develop rapid and accurate detectors for chemical compounds. Herein, a new chemical photonic structure is theoretically investigated as a detector for isopropanol, ethanol, and acetone. The proposed sensor is based on a 1D ternary photonic crystal and has the structure (Si/Si3N4/SiO2)N/cavity layer/(Si/Si3N4/SiO2)N. The organic chemical compounds are assumed to be separately infiltrated into the cavity layer. The defect layer (DLR) thickness, incident angle, number of unit cells, and the contrast between the high‐ and low‐index layers are varied and the sensitivity and quality factor are found for each case. The sensitivity can be considerably improved by increasing the DLR thickness, angle of incidence, and the contrast between the high‐ and low‐index materials. An extremely high sensitivity (2270.48, 2283.0555, and 2283.75) and quality factor (21.82 × 105, 21.48 × 105 and 21.46 × 105) are obtained for isopropanol, ethanol, and acetone. The results described earlier may pave the way for a practical and useful method of diagnosing chemical compounds.

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“…To examine the optical characteristics of 1D PHC, the TrMx approach offers a straightforward and adaptable method. The characteristic matrix of one layer ( Z j ) can be expressed as [ 8 ]

Z_{j} = [\begin{matrix} cos false(δ_{j} false) & \frac{i sin false(δ_{j} false)}{γ_{j}} \\ - i γ_{j} sin false(δ_{j} false) & cos false(δ_{j} false) \end{matrix}]

…”

Section: Transfer Matrix Methodsmentioning

confidence: 99%

“…δ j is the phase difference of the light wave as it travels through layer j [ 21 ]

δ_{j} = \frac{2 π}{λ} n_{j} d_{j} cos θ_{j}

where d j is the layer's thickness and n j is the layer's RIX. The angle of incidence into the layer, denoted by

θ_{j}

, is expressed as a function of the initial incidence angle

θ_{0}

as [ 8 ]

cos θ_{j} = \sqrt{1 - {(\frac{n_{0} sin false(θ_{0} false)}{n_{j}})}^{2}}

…”

Section: Transfer Matrix Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

An Efficient Photonic Crystal‐Based Chemical Sensor for the Detection of Isopropanol, Ethanol, and Acetone

Srour

Taya

Çolak

et al. 2023

Physica Status Solidi (a)

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“…The first PhC devices were fabricated using an array of alumina lattice elements [1]. Since then, PhCs have been extensively studied for various applications [2][3][4][5]. By introducing a defect mode (DM) inside a PBG, the combination of EM waves and PBGs opens a promising perspective to control spontaneous emission [6].…”

Section: Introductionmentioning

confidence: 99%

A New Lattice Boltzmann Scheme for Photonic Bandgap and Defect Mode Simulation in One-Dimensional Plasma Photonic Crystals

Song

et al. 2022

Photonics

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A novel lattice Boltzmann method (LBM) with a pseudo-equilibrium potential is proposed for electromagnetic wave propagation in one-dimensional (1D) plasma photonic crystals. The final form of the LBM incorporates the dispersive effect of plasma media with a pseudo-equilibrium potential in the equilibrium distribution functions. The consistency between the proposed lattice Boltzmann scheme and Maxwell’s equations was rigorously proven based on the Chapman–Enskog expansion technique. Based on the proposed LBM scheme, we investigated the effects of the thickness and relative dielectric constant of a defect layer on the EM wave propagation and defect modes of 1D plasma photonic crystals. We have illustrated that several defect modes can be tuned to appear within the photonic bandgaps. Both the frequency and number of the defect modes could be tuned by changing the relative dielectric constant and thickness of the defect modes. These strategies would assist in the design of narrowband filters.

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“…These approaches have the disadvantage of highperformance requirements for instruments and the inability to give precise information on the structural and compositional features of bacterial cells. Due to the vast range of applications in optics, optoelectronics and chemical and biological sensing, photonic crystals (PCs) have become very attractive in both technology and science [10][11][12][13][14][15]. PCs are composite materials made up of a periodic combination of two or more media of different indices of refraction.…”

Section: Introductionmentioning

confidence: 99%

Sensitivity Enhancement of an Optical Sensor Based on A Binary Photonic Crystal for The Detection of Escherichia Coli by Controlling the Central Wavelength and The Angle of Incidence

Taya

Alhamss

Çolak

et al. 2021

Preprint

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The detection process of Escherichia coli (E. coli) bacteria in drinking water is a global problem as they can lead to hazardous conditions in the human body. In this work, a one-dimensional binary photonic crystal with the structure air/(GaAs,SiO2)N/D/(GaAs,SiO2)N/glass is proposed as an optical sensor to detect E. coli bacteria, where D is the defect layer. Water and E. coli bacteria are treated as the defect layer. The sensing mechanism of the proposed detector is based on the refractive index difference between pure water and waterborne bacteria samples. The transmission spectra of the photonic crystal are investigated and the sensitivity to E. coli bacteria is calculated. The effects of the central wavelength and the angle of incidence on the sensitivity and sensor performance parameters are studied. It is found that the central wavelength increase can enhance the sensor sensitivity and most of the performance parameters. Increasing the incidence angle can improve the sensitivity and all the performance parameters such as full width at half maximum, quality factor, detection limit, sensor resolution, signal-to-noise ratio, dynamic range, detection accuracy and figure of merit.

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Investigation of bandgap properties in one-dimensional binary superconductor–dielectric photonic crystal: TE case

Cited by 23 publications

References 29 publications

An Efficient Photonic Crystal‐Based Chemical Sensor for the Detection of Isopropanol, Ethanol, and Acetone

An Efficient Photonic Crystal‐Based Chemical Sensor for the Detection of Isopropanol, Ethanol, and Acetone

A New Lattice Boltzmann Scheme for Photonic Bandgap and Defect Mode Simulation in One-Dimensional Plasma Photonic Crystals

Sensitivity Enhancement of an Optical Sensor Based on A Binary Photonic Crystal for The Detection of Escherichia Coli by Controlling the Central Wavelength and The Angle of Incidence

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