Extension of energy band gap in ternary photonic crystal using left-handed materials

El-Amassi, Dena M.; Taya, Sofyan A.; Ramanujam, N.R.; Dhasarathan, Vigneswaran; Udaiyakumar, R.

doi:10.1016/j.spmi.2018.05.037

Cited by 30 publications

(5 citation statements)

References 39 publications

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“…Dena M. El-Amassi et al assumed that one of the layers constituting the ternary photonic crystal is a left-handed material with both negative permittivity and permeability. It is found that with the increase of the thickness of the LHM layer, the band gap of the one-dimensional ternary photonic crystal will increase significantly [5]. You-Ming Liu et al used the transfer matrix method to study the band gap structure of photonic crystals of magnetized ferrite, and found that the band gap width increases first and then decreases with the increase of disorder effect [6].…”

Section: Introductionmentioning

confidence: 99%

Localization simulation of graphene photonic crystal doped tin oxide

2023

AJMC

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Photonic crystal is an optical microstructure whose dielectric constant is periodically modulated by spatial position. The structure of photonic crystal can be divided into one-dimensional, two-dimensional and three-dimensional, and two-dimensional has become a research hotspot. For the photonic crystal doped with tin oxide in two-dimensional hexagonal graphene, this paper uses COMSOL software to solve the energy band of the lattice on the basis of triangular cell, and obtains the electric field height image and energy band structure diagram under TM and TE modes. The localization of the electric field and the band gap structure of the two modes in a certain frequency range are analyzed. It provides a simulation method and theoretical basis for the application of this material.

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Section: Introductionmentioning

confidence: 99%

Localization simulation of graphene photonic crystal doped tin oxide

2023

AJMC

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“…To enhance performance, scientists have been attempting to use different PCs constituent materials such as metals, superconductors, left handed materials, plasmas and nanoparticles [4,12,[14][15][16][17]. Unluckily; metals, especially below the plasma frequency, are highly absorbents [18] and superconductors operate at special conditions and temperatures.…”

Section: Introductionmentioning

confidence: 99%

Transmission investigation of one-dimensional Fibonacci-based quasi-periodic photonic crystals including nanocomposite material and plasma

Elsayed

Abadla

2020

Phys. Scr.

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In this communication, the transmittance characteristics of one dimensional quasi-periodic photonic crystals (PCs) is investigated. The proposed structure consists basically of plasma and nanocomposite layers arranged in accordance to the Fibonacci sequence. The effect of volume density of the plasma and the volume fraction of the nanocomposite material on the properties of the photonic band gaps are studied in detail. The effect of layers thicknesses and the sequence number are also taken into account. We believe that such structures can be potentially beneficial in many novel future applications such as multichannel and pass band filters and optical switches. Additionally, such PCs can be used to design tunable optical devises through controlling the plasma and nanoparticle densities.

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“…Nowadays we are witnessing increasing progresses in different branches of the laser and photonic technologies which are pointing towards the rapid transitions from pure science to experiments. [1][2][3][4][5] However, these successes are not just related to the advancements in the fabrication techniques alone. Foundation of new materials and suggestions of more applicable elements have become very influential in these regards.…”

Section: Introductionmentioning

confidence: 99%

“…The idea of using two/more dielectrics stacked periodically in one, two, or three dimensions for manipulation of the electromagnetic waves propagation is not a new idea. [5][6][7] There exist numerous reports in which optical features of various kinds of these structures have been investigated. [8][9][10][11][12][13] They have been widely proposed in fabrications of not only light sources such as lasers/diodes [14,15] but also detectors and transducers, [15] all optical filters, mirrors, and switches.…”

Section: Introductionmentioning

confidence: 99%

One-dimensional structure made of periodic slabs of SiO₂/InSb offering tunable wide band gap at terahertz frequency range

Razi

Ghasemi

2019

Chinese Phys. B

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Optical features of a semiconductor–dielectric photonic crystal are studied theoretically. Alternating layers of micrometer sized SiO2/InSb slabs are considered as building blocks of the proposed ideal crystal. By inserting additional layers and disrupting the regularity, two more defective crystals are also proposed. Photonic band structure of the ideal crystal and its dependence on the structural parameters are explored at the first step. Transmittance of the defective crystals and its changes with the thicknesses of the layers are studied. After extracting the optimum values for the thicknesses of the unit cells of the crystals, the optical response of the proposed structures at different temperatures and incident angles are investigated. Changes of the defect layers’ induced mode(s) are discussed by taking into consideration of the temperature dependence of the InSb layer permittivity. The results clearly reflect the high potential of the proposed crystals to be used at high temperature terahertz technology as a promising alternative to their electronic counterparts.

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Extension of energy band gap in ternary photonic crystal using left-handed materials

Cited by 30 publications

References 39 publications

Localization simulation of graphene photonic crystal doped tin oxide

Localization simulation of graphene photonic crystal doped tin oxide

Transmission investigation of one-dimensional Fibonacci-based quasi-periodic photonic crystals including nanocomposite material and plasma

One-dimensional structure made of periodic slabs of SiO₂/InSb offering tunable wide band gap at terahertz frequency range

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Extension of energy band gap in ternary photonic crystal using left-handed materials

Cited by 30 publications

References 39 publications

Localization simulation of graphene photonic crystal doped tin oxide

Localization simulation of graphene photonic crystal doped tin oxide

Transmission investigation of one-dimensional Fibonacci-based quasi-periodic photonic crystals including nanocomposite material and plasma

One-dimensional structure made of periodic slabs of SiO2/InSb offering tunable wide band gap at terahertz frequency range

Contact Info

Product

Resources

About

One-dimensional structure made of periodic slabs of SiO₂/InSb offering tunable wide band gap at terahertz frequency range