Effective group index of refraction in nonthermal plasma photonic crystals
Abstract
Plasma photonic crystals (PPCs) are periodic arrays that consist of alternate layers of microplasma and dielectric. These structures are used to control the propagation of electromagnetic waves. This paper presents a survey of research on the effect of nonthermal plasma with biMaxwellian distribution function on one dimensional PPC. A plasma with temperature anisotropy is not in thermodynamic equilibrium and can be described by the biMaxwellian distribution function. By using KronigPenny's model, the dispersion relation of electromagnetic modes in one dimensional nonthermal PPC (NPPC) is derived. The band structure, group velocity v{sub g}, and effective group index of refraction n{sub eff}(g) of such NPPC structure with TeO{sub 2} as the material of dielectric layers have been studied. The concept of negative group velocity and negative n{sub eff}(g), which indicates an anomalous behaviour of the PPCs, are also observed in the NPPC structures. Our numerical results provide confirmatory evidence that unlike PPCs there are finite group velocity and nonzero effective group indexes of refraction in photonic band gaps (PBGs) that lie in certain ranges of normalized frequency. In other words, inside the PBGs of NPPCs, n{sub eff}(g) becomes nonzero and photons travel with a finite group velocity. In this special case, thismore »
 Authors:
 Physics Department, Azarbaijan Shahid Madani University, Tabriz (Iran, Islamic Republic of)
 Publication Date:
 OSTI Identifier:
 22489875
 Resource Type:
 Journal Article
 Resource Relation:
 Journal Name: Physics of Plasmas; Journal Volume: 22; Journal Issue: 11; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
 Country of Publication:
 United States
 Language:
 English
 Subject:
 70 PLASMA PHYSICS AND FUSION TECHNOLOGY; ANISOTROPY; DIELECTRIC MATERIALS; DISPERSION RELATIONS; DISTRIBUTION FUNCTIONS; ELECTROMAGNETIC RADIATION; ELECTRON TEMPERATURE; ION TEMPERATURE; PERIODICITY; PHOTONS; PLASMA; REFRACTIVE INDEX; TELLURIUM OXIDES; WAVE PROPAGATION
Citation Formats
Mousavi, A., and Sadegzadeh, S., Email: sadegzadeh@azaruniv.edu. Effective group index of refraction in nonthermal plasma photonic crystals. United States: N. p., 2015.
Web. doi:10.1063/1.4935009.
Mousavi, A., & Sadegzadeh, S., Email: sadegzadeh@azaruniv.edu. Effective group index of refraction in nonthermal plasma photonic crystals. United States. doi:10.1063/1.4935009.
Mousavi, A., and Sadegzadeh, S., Email: sadegzadeh@azaruniv.edu. Sun .
"Effective group index of refraction in nonthermal plasma photonic crystals". United States.
doi:10.1063/1.4935009.
@article{osti_22489875,
title = {Effective group index of refraction in nonthermal plasma photonic crystals},
author = {Mousavi, A. and Sadegzadeh, S., Email: sadegzadeh@azaruniv.edu},
abstractNote = {Plasma photonic crystals (PPCs) are periodic arrays that consist of alternate layers of microplasma and dielectric. These structures are used to control the propagation of electromagnetic waves. This paper presents a survey of research on the effect of nonthermal plasma with biMaxwellian distribution function on one dimensional PPC. A plasma with temperature anisotropy is not in thermodynamic equilibrium and can be described by the biMaxwellian distribution function. By using KronigPenny's model, the dispersion relation of electromagnetic modes in one dimensional nonthermal PPC (NPPC) is derived. The band structure, group velocity v{sub g}, and effective group index of refraction n{sub eff}(g) of such NPPC structure with TeO{sub 2} as the material of dielectric layers have been studied. The concept of negative group velocity and negative n{sub eff}(g), which indicates an anomalous behaviour of the PPCs, are also observed in the NPPC structures. Our numerical results provide confirmatory evidence that unlike PPCs there are finite group velocity and nonzero effective group indexes of refraction in photonic band gaps (PBGs) that lie in certain ranges of normalized frequency. In other words, inside the PBGs of NPPCs, n{sub eff}(g) becomes nonzero and photons travel with a finite group velocity. In this special case, this velocity varies alternately between 20c and negative values of the order 10{sup 3}c (c is the speed of light in vacuum)},
doi = {10.1063/1.4935009},
journal = {Physics of Plasmas},
number = 11,
volume = 22,
place = {United States},
year = {Sun Nov 15 00:00:00 EST 2015},
month = {Sun Nov 15 00:00:00 EST 2015}
}

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