Absolute band gap properties in two-dimensional photonic crystals composed of air rings in anisotropic tellurium background

Rezaei, Behrooz; Khalkhali, T. Fathollahi; Vala, A. Soltani; Kalafi, M.

doi:10.1016/j.optcom.2009.04.048

Cited by 45 publications

(19 citation statements)

References 17 publications

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“…For in-plane propagation, two types of electromagnetic modes exist according to whether the electric (E-Polarization or TM) or magnetic (H-Polarization or TE) field is parallel to the hole axes. A complete PBG exists for a two-dimensional (2D) PC only when PBG in both polarization modes are present and they overlap each other (6)(7)(8). There are several reasons for which a complete PBG would be a desirable feature.…”

Section: Introductionmentioning

confidence: 99%

Evolution of complete photonic band gap in anisotropic photonic quasicrystals using liquid crystals

Khalkhali

Bananej

2016

Journal of Modern Optics

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In this study, we analyse the evolution of complete photonic band gap in two-dimensional photonic structures by arranging the 12-fold symmetric quasicrystalline unit cells on square and triangular lattices. The unit cells composed of circular air holes in anisotropic tellurium background and the air holes are infiltrated with liquid crystal. Using the supercell method based on plane wave expansion, we study the variation of complete band gap by changing the optical axis orientation of liquid crystals.KEYWORDS complete photonic band gap; quasicrystals; anisotropic tellurium material; liquid crystal ARTICLE HISTORY

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Section: Introductionmentioning

confidence: 99%

Evolution of complete photonic band gap in anisotropic photonic quasicrystals using liquid crystals

Khalkhali

Bananej

2016

Journal of Modern Optics

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“…Much attention has therefore, been drawn towards 2D PCs with some typical lattice types, for example square, hexagonal, triangular, honeycomb and complex lattices. Many attempts have been made to design various kinds of PCs to achieve a large absolute PBG, such as anisotropic inclusion, symmetry reduction, structural deformation and composite structures [5][6][7][8][9]. To our knowledge, only a few authors have investigated how the existence of interfacial (or cladding) layers affects the properties of photonic gaps [10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Analysis of absolute photonic band gaps in two-dimensional photonic crystals based on CdSe rods embedded in TiO<inf>2</inf> matrix

Labbani¹,

Jouablia²,

Benghalia³

2014

2014 21st IEEE International Conference on Electronics, Circuits and Systems (ICECS)

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Using the plane-wave numerical expansion method, we investigate the band gap spectra of two-dimensional photonic crystals created by square and hexagonal lattices consisting of coating rods with a thin air layer in a titanium dioxide (TiO 2 )matrix. Our results show that in a square lattice a coating alone does not help to create an absolute PBG. However, we showed that adding air hole into the center of each square unit cell can produce the absolute PBG. The optimum gap is achieved by tuning the thickness of the shell layer in the two types of lattices. We believe that the present results are significant to increase the possibilities for experimentalist to design a larger absolute PBG despite the very low contrast index between the rods and the matrix.

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“…The band structure of photonic crystals has been extensively studied for many structures with different geometry of rods. [1][2][3] There are a lot of methods in calculation of photonic band structure such as the plane wave expansion method (PWEM), 4-6 transfer matrix method (TMM), 7 Dirichlet-to-Neumann map method (DtN map method) 8,9 and finite difference time domain (FDTD) method. [10][11][12] The PWEM is quite useful and high-efficient to calculate the photonic band structure of PCs with independent dielectric function.…”

Section: Introductionmentioning

confidence: 99%

Study of Band Structure of Two-Dimensional Anisotropic Honeycomb Photonic Crystals

Sedghi

Soufiani

2013

Mod. Phys. Lett. B

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Using the plane wave expansion method, we have calculated, for both E and H polarizations, the band structure of 2D anisotropic photonic crystals with honeycomb lattice composed of anisotropic tellurium (Te) rods embedded in air background. The two rods in the unit cell are chosen square and circular in shape. Here, from a practical point of view, in order to obtain maximum band gaps, we have also studied the band structure as a function of size of rods.

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Absolute band gap properties in two-dimensional photonic crystals composed of air rings in anisotropic tellurium background

Cited by 45 publications

References 17 publications

Evolution of complete photonic band gap in anisotropic photonic quasicrystals using liquid crystals

Evolution of complete photonic band gap in anisotropic photonic quasicrystals using liquid crystals

Analysis of absolute photonic band gaps in two-dimensional photonic crystals based on CdSe rods embedded in TiO<inf>2</inf> matrix

Study of Band Structure of Two-Dimensional Anisotropic Honeycomb Photonic Crystals

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