Optical properties of one-dimensional defective photonic crystal containing nanocomposite material

Aly, Arafa H.; Elsayed, Hussein A.; Malek, Chantal G. Khan

doi:10.1142/s0218863517500072

Cited by 26 publications

(19 citation statements)

References 27 publications

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“…Then, the Plasmon frequency and the decay constant of Ag–NPs are and , respectively 32 – 34 . Then, the spherical radius (r) of the Ag–NPs is taken as 20 nm and 32 – 34 .…”

Section: Theoretical Formulismmentioning

confidence: 99%

“…Recently, many researchers have advocated the use of NC materials as a suitable alternative to dispersive media 31 – 34 . Nanoparticles of dispersive media embedded in a host material of a dielectric medium can be used to create NC materials 31 , 35 , 36 .…”

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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“…Then, the Plasmon frequency and the decay constant of Ag–NPs are and , respectively 32 – 34 . Then, the spherical radius (r) of the Ag–NPs is taken as 20 nm and 32 – 34 .…”

Section: Theoretical Formulismmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

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

Mohamed

El-Sayed

Mehaney

et al. 2022

Sci Rep

Self Cite

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“…The optical properties of 1DPS of dielectric materials with LC nanocomposite as defect layer can be tuned by different sizes and shapes of silver nanoparticles. The different sizes and shapes of silver nanoparticles affect the transmission of defect mode peaks as well as the band edges of the PBGs of PCs through the enhanced magnitude of the SPR [38][39][40][41][42]. As an example, nanocomposite (E7 + Ag-NPs) can tune the optical properties of 1DPS through variation of dielectric permittivity depending upon the size, shape and lling fraction of nanoparticles.…”

Section: Introductionmentioning

confidence: 99%

Theoretical Investigation of Coupling of Surface Plasmons in One-dimensional Periodic Structure of SiO2 and TiO2 with Defect of Nanocomposite of Liquid Crystals and Core–Shell Nanoparticles

Gupta

Singh²,

Thapa³

et al. 2022

Plasmonics

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In this work, we theoretically investigate the coupling of localized surface plasmons resonances (LSPRs) of core-shell nanoparticles embedded in the host liquid crystal, where the near eld enhancement in the host matrix tunes the optical properties. The effect of different radii of spherical core-shell nanoparticles of silver core and silicon shell (Ag@Si) in the E7 liquid crystals is also discussed. The coupling of LSPRs through the near eld enhancement in the E7LC + Ag@Si nanocomposite (NC) layer yields to tune the optical transmissions. LPSRs depend on the radii of core-shell structures shows redshift and blue shifts in which controlled transmissions of one-dimensional photonic crystals (1-DPCs) with defect of NC layer have been discussed using transfer matrix method (TMM) in this study. The lling fractions of core-shell nanostructure and the incident angles of the electromagnetic wave also affect the transmission properties of designed 1-DPC with a structure (TiO 2 |SiO 2 ) 5 |NC|(TiO 2 |SiO 2 ) 5 . The studies of proposed structure reveal to design the energy e cient optical lters, sensors, solar cells, photo-detectors and alloptical switching devices.

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“…attention of researchers in the¯eld of optics and photonics because of their various applications in¯ber optic communications, 7,8¯b er lasers, 9 nonlinear optics, 10,11 terahertz photonics, 12,13 highly sensitive gas sensors, 14,15 supercontinuum generation, 16 ampli¯ers, 17 etc. [18][19][20][21] The unique linear and nonlinear properties of PCFs made them as ideal candidates for nonlinear-optic applications such as the wavelength conversion. As there are not always commercial lasers at suitable wavelengths or there are¯nancial limitations, it is possible to produce desired wavelengths through nonlinear phenomena in PCFs.…”

Section: Introductionmentioning

confidence: 99%

Tunable wavelength conversion based on optofluidic infiltrated photonic crystal fibers

Pakarzadeh

Derakhshan

Hosseinabadi

2019

J. Nonlinear Optic. Phys. Mat.

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In this paper, wavelength conversion based on optofluidic infiltration of photonic crystal fibers (PCFs) is investigated to achieve the suitable wavelength over wide tunable range. For this purpose, two designs of PCFs (the so-called PCF1 and PCF2) with appropriate dispersion properties are simulated, and wavelength conversion via four-wave mixing process for pump wavelengths in both normal and anomalous dispersion regimes is studied. By changing the refractive index [Formula: see text] of the optical fluid infiltrated into the PCF air-holes and then varying the fiber dispersion properties, the converted wavelength region can be tuned. The results show that for the pump wavelength in the normal dispersion regime, the PCF1 infiltrated with [Formula: see text] and PCF2 infiltrated with [Formula: see text] exhibit the maximum wavelength shift. Moreover, the wavelength shift is much higher than that obtained in the anomalous dispersion regime and it can be further increased by increasing the input pump power.

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Optical properties of one-dimensional defective photonic crystal containing nanocomposite material

Cited by 26 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

Theoretical Investigation of Coupling of Surface Plasmons in One-dimensional Periodic Structure of SiO2 and TiO2 with Defect of Nanocomposite of Liquid Crystals and Core–Shell Nanoparticles

Tunable wavelength conversion based on optofluidic infiltrated photonic crystal fibers

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