Transmittance properties of one dimensional ternary nanocomposite photonic crystals

Elsayed, Hussein A.

doi:10.1088/2053-1591/aaaf79

Cited by 33 publications

(20 citation statements)

References 27 publications

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“…As a result, the dispersion properties of the permittivity of NC material become a significant parameter. Due to the interaction of the incident electromagnetic waves with the surface plasmon of Ag– NPs results in the creation of an asymmetrical mode for both real and imaginary parts which is localized at a certain frequency area 38 . As demonstrated in Fig.…”

Section: Resultsmentioning

confidence: 99%

“…It also allows reducing absorption values based on the volume fraction of the dispersive medium and the nanoparticles spherical radius 31 , 37 . Metal-dielectric NCs have recently been suggested as potentially appealing PC materials with unique plasmon resonance optical characteristics 38 . The inclusion of NCs materials based on metal and dielectric components has a pronounced effect on the characteristic of PC such as the utilization of additional PBGs, in addition to managing the values of absorption of the proposed structures.…”

Section: Introductionmentioning

confidence: 99%

“…The dependence on this type of materials may provide more alternatives towards the tunability of the PBG and the optical properties as well. In particular, the permittivity of NC materials could be tuned by changing some related parameters such as the core radius of NPs, filling fractions and the host medium 34 – 38 . As a result, when these materials compared with dielectric and superconductor materials, these materials could be an excellent candidate 9 , 49 , 53 .…”

Section: Introductionmentioning

confidence: 99%

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Transmittance properties of one-dimensional metamaterial nanocomposite photonic crystal in GHz range

Mohamed

El-Sayed

Mehaney

et al. 2022

Sci Rep

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We have theoretically demonstrated and explored the transmittance characteristics of a one-dimensional binary photonic crystal composed of metamaterial (MM) and nanocomposite (NC) layers. The NC layer was designed from silver nanoparticles (Ag-NPs) in a host material as Yttrium oxide (Y2O3). Using the transfer matrix approach (TMM), the optical properties of a one-dimensional binary periodic structure having MM and NC layers in the Giga Hertz (GHz) range were examined. The filling fractions of nanoparticles have been explored to see their effect on the effective permittivity of NC materials. Furthermore, the transmittance properties of the suggested structure were investigated at various incident angles for the transverse electric (TE) polarization. In addition to that, different parameters, such as the thickness of the MM layer, the permittivity of the host dielectric material, the filling fraction, and the thickness of the NC layer are also taken into account. We also discussed the effect of these parameters on the width of the photonic bandgap (PBG). With the optimum values of the optical parameters of NC layer, this research could open the way for better photonic crystal circuits, splitters, switches and others.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Transmittance properties of one-dimensional metamaterial nanocomposite photonic crystal in GHz range

Mohamed

El-Sayed

Mehaney

et al. 2022

Sci Rep

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“…As a result, the dispersion properties of the permittivity of HMM material become prominent. The interaction of the incident electromagnetic waves with the surface plasmon of Ag-NPs leads to the formation of an asymmetrical mode for both real and imaginary portions that is concentrated at a specific wavelength region 48 . Figure 4 C and D show that the imaginary parts and are close to zero and independent of the wavelength ranges of incident radiation.…”

Section: The Theoretical Analysis Of One-dimensional Pbg In Pcs Havin...mentioning

confidence: 99%

Multiplication of photonic band gaps in one-dimensional photonic crystals by using hyperbolic metamaterial in IR range

Mohamed

Sabra

Mehaney

et al. 2023

Sci Rep

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The light-slowing effect near band endpoints is frequently exploited in photonic crystals to enhance the optical transmittance. In a one-dimensional binary photonic crystal (1DPC) made of hyperbolic metamaterials (HMMs), we theoretically examined the angle-dependent omnidirectional photonic bandgap (PBG) for TM polarization. Using the transfer matrix approach, the optical characteristics of the 1DPC structure having dielectric and HMM layers were examined at the infrared range (IR). As such, we observed the existing of numerous PBGs in this operating wavelength range (IR). Meanwhile, the HMM layer is engineered by the subwavelength dielectric- nanocomposite multilayers. The filling fraction of nanoparticles have been explored to show how they affect the effective permittivity of the HMM layer. Furthermore, the transmittance properties of the suggested structure are investigated at various incident angles for transverse magnetic (TM) and transverse electric polarizations. Other parameters such as, the permittivity of the host material, the filling fraction of nanoparticles, and the thickness of the second layer (HMM) are also taken into account. Finally, we investigated the effect of these parameters on the number and the width of the (PBGs). With the optimum values of the optical parameters of the nanocomposite (NC) layer, this research could open the way for better multi-channel filter photonic crystals.

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“…In one-dimensional PCs (1D-PC) the transfer matrix method (TMM) is used to calculate the shift exhibited by the long-wavelength transmittance spectrum in a structure composed of quartz-silicon [12], and nanocomposite [13] layers. In these structures, the Maxwell-Garnett model and Sellmeier approach are used to determine the dielectric constant.…”

Section: Introductionmentioning

confidence: 99%

Effects of hydrostatic pressure on an L1 and L3 cavity of a photonic slab

Segovia-Chaves

Vinck-Posada

2020

Mater. Res. Express

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In this work, we used the guided-mode expansion method to calculate the photonic band dispersion in two-dimensional photonic crystal slabs. The photonic lattice is hexagonal, composed of air holes with a circular cross-section. The slab is made of a semiconductor material (GaAs) with a dielectric function dependent on pressure and temperature. By maintaining the constant temperature, we found a shift in the photonic band dispersion towards regions of larger frequencies when the hydrostatic pressure increased. Moreover, we consider the effects of pressure on defective modes in cavities L1 and L3. The results reveal that by increasing the pressure, the position of the defective modes manages to tune for the photonic gap. Additionally, we found a decrease in the Q-factor for the L1 cavity when the pressure increases. However, for the L3 cavity, the Q-factor exhibits a non-monotonous behavior by increasing the pressure.

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Transmittance properties of one dimensional ternary nanocomposite photonic crystals

Cited by 33 publications

References 27 publications

Transmittance properties of one-dimensional metamaterial nanocomposite photonic crystal in GHz range

Transmittance properties of one-dimensional metamaterial nanocomposite photonic crystal in GHz range

Multiplication of photonic band gaps in one-dimensional photonic crystals by using hyperbolic metamaterial in IR range

Effects of hydrostatic pressure on an L1 and L3 cavity of a photonic slab

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