Photonic Bandgaps in Quasiperiodic Multilayer Structures Using Fourier Transform of the Refractive Index Profile

Golmohammadi, Saeed; Rouhani, Y.; Abbasian, K.; Rostami, Abbas Ali

doi:10.2528/pierb09091701

Cited by 8 publications

(4 citation statements)

References 20 publications

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“…In addition, Eq. (12) shows that the peak height and the peak wavelength are independent of the stack number N . The effects of N are to narrow the peak shape and to make the band edges more sharp as N increases.…”

Section: Defect Modes In Asymmetric Pcmentioning

confidence: 99%

“…Such a layered structure is usually designed to serve as a dielectric mirror (also known as a Bragg reflector) which plays an important part in many modern photonic systems [1][2][3][4]. A periodic bilayer system is now known as one-dimensional photonic crystal (1DPC), which has been a hot topic in optical physics over the past two decades [5][6][7][8][9][10][11][12][13][14][15][16]. In a PC, there will be photonic band gaps (PBGs) created due to the spatial periodicity.…”

Section: Introductionmentioning

confidence: 99%

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Properties of Defect Modes in One-Dimensional Photonic Crystals

Wang

2010

PIER

110

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Abstract-A theoretical analysis of the properties of the defect modes in a one-dimensional defective photonic crystal (PC) is given. Two defective PCs stacked in symmetric and asymmetric geometries are considered. The defect modes are investigated by the calculated wavelength-dependent transmittance for both TE and TM waves. It is found that there exists a single defect mode within the photonic band gap (PBG) in the asymmetric PC. There are, however, two defect modes within the PBG in the symmetric one. The dependences of defect modes on the angle of incidence are illustrated. Additionally, the effect of defect thickness on the number of defect modes is also examined.

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Section: Defect Modes In Asymmetric Pcmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Properties of Defect Modes in One-Dimensional Photonic Crystals

Wang

2010

PIER

110

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“…The current interest paid to multilayered structures (in connection to its fabrication, and applications concerning superconductivity, skin effect, eddy currents, and photonic metamaterial structures) is witnessed in recent publications [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16]. Nonetheless, the research topic on multilayered radially inhomogeneous cylindrical structures has received scarce attention.…”

Section: Introductionmentioning

confidence: 99%

A Matrix Approach for the Evaluation of the Internal Impedance of Multilayered Cylindrical Structures

Faria¹

2011

PIER B

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Abstract-A matrix technique for the computation of the perunit-length internal impedance of radially inhomogeneous cylindrical structures is presented. The cylindrical structure is conceptually divided into a number of layers, each layer being characterized by its constitutive parameters, conductivity, permeability, and permittivity. Within this general framework, compound conductors, compound capacitors, compound magnetic cores, or any other compound structures resulting from a mix of the above, can be analyzed by using the very same tool. The developed software program, MLCS, which implements the mentioned matrix technique, also permits the evaluation of the electric and magnetic fields intensity at the layers' interfaces. The MLCS program is validated by using several application examples.

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“…The photonic band gaps of these structures provide a way to control the propagation of light within a range of frequency [2][3][4][5][6][7][8][9][10][11], for example, an omnidirectional reflector has been demonstrated using one-dimensional periodic dielectric materials [5,6,[12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Properties of Phase Shift Defects in One-Dimensional Rugate Photonic Structures

Liu¹,

2011

PIER

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Abstract-We theoretically investigated optical properties of phase shift defects in one-dimensional rugate photonic structures at oblique incidence. Transmission spectra and energy density distributions of such continuous gradient-index structures with phase shift defects were numerically calculated for TE and TM waves using the propagation matrix method. The study shows that when the angle of incidence increases, (1) the wavelength of the defect mode shifts to a shorter wavelength, (2) the stop band of the rugate structure moves toward a shorter wavelength region, (3) the bandwidth is enlarged for TE wave, but it is shortened for TM wave, (4) the full width at half maximum (FWHM) of the defect mode decreases for TE wave but it increases for TM wave, (5) the peak energy density increases and then drops for TE wave, while it always decreases for TM wave. The effect of number of periods of rugate structures on the energy density distribution was also examined.

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Photonic Bandgaps in Quasiperiodic Multilayer Structures Using Fourier Transform of the Refractive Index Profile

Cited by 8 publications

References 20 publications

Properties of Defect Modes in One-Dimensional Photonic Crystals

Properties of Defect Modes in One-Dimensional Photonic Crystals

A Matrix Approach for the Evaluation of the Internal Impedance of Multilayered Cylindrical Structures

Properties of Phase Shift Defects in One-Dimensional Rugate Photonic Structures

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