Microwave Applications of Photonic Crystals

Özbay, Ekmel; Temelkuran, Burak; Bayındır, Mehmet

doi:10.2528/pier02010808

Cited by 71 publications

(36 citation statements)

References 48 publications

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“…The main feature of photonic crystals is that they can prohibit the propagation of electromagnetic waves within a certain frequency range called photonic band gap (PBG), which is analogous to the electronic band gap in ordinary materials. The materials containing PBG have many potential applications in optoelectronics and optical communication [8][9][10][11][12]. Ojha et al [13] observed filtering properties in PBG materials and extended the idea for constructing monochromators [14].…”

Section: Introductionmentioning

confidence: 99%

Enhancement of Omnidirectional Reflection in Photonic Crystal Heterostructures

Srivastava¹,

Pati²,

Ojha³

2008

PIER B

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Abstract-In this paper we have theoretically studied the omnidirectional total reflection frequency range of a multilayered dielectric heterostructures. Three structures of Na 3 AlF 6 /Ge multilayer have been studied. The thickness of the two layers of the first and second structure is differing from each other and the third photonic structure is the combination of first and second structures. Using the Transfer Matrix Method (TMM) and the Bloch theorem, the reflectivity of one dimensional periodic structure for TE-and TM-modes at different angles of incidence is calculated. From the analysis it is found that the proposed structure has very wide range of omnidirectional total frequency bands for both polarizations.

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Section: Introductionmentioning

confidence: 99%

Enhancement of Omnidirectional Reflection in Photonic Crystal Heterostructures

Srivastava¹,

Pati²,

Ojha³

2008

PIER B

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“…Since then, the OBGs in the 1DPCs have attracted great interest of many scientists [4,[7][8][9][10][11][12]. It is known that such an OBG has potential applications [13,14], such as, omnidirectional terahertz mirrors [15], controllable switching [16], tunable polarizer [17], narrowband filters [18], and refractometric optical sensing [19], etc.…”

Section: Introductionmentioning

confidence: 99%

Broad Omnidirectional Reflector in the One-Dimensional Ternary Photonic Crystals Containing Superconductor

Dai¹,

Xiang²,

Wen³

2011

PIER

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Abstract-A method to enlarge the omnidirectional photonic bandgaps (PBGs) has been presented in the one-dimensional photonic crystals by sandwiching a superconductor layer between two dielectric materials to form a one-dimensional ternary periodic structure. The angle-and thickness-dependence of these PBGs have been investigated in detail, and then the thermally-tunability of these omnidirectional PBGs by controlling external temperature of the superconductor is discussed. It is shown that these omnidirectional PBGs can be extended markedly in the one-dimensional ternary photonic crystal and the gap width or the wavelength range can also be tuned by varying external temperature.

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“…Because of the principle of reciprocity, the analysis of the transmission coefficient for a source located inside an EBG structure is equivalent to the calculation of the total wave inside an EBG structure excited from outside. This second analysis has been presented in [16], by using a ray method and in [17], where a numerical method has been proposed. However, the minima and maxima envelop and the resonance frequencies of the transmission coefficient have not been studied enough.…”

Section: Introductionmentioning

confidence: 99%

Multi-Layer Crystals of Metallic Wires: Analysis of the Transmission Coefficient for Outside and Inside Exciation

Boutayeb¹,

Mahdjoubi²,

Tarot³

2006

PIER

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Abstract-This paper proposes a new analysis of the transmission coefficient at normal incidence for 2-D periodic crystals (also called Electromagnetic Band Gap (EBG) structures), which are finite in the direction of wave-propagation and are composed of metallic wires. The crystal is considered as a set of parallel Partially Reflecting Surfaces (PRSs), whose transmission and reflection characteristics are obtained rigorously using the Finite Difference Time Domain (FDTD) method. The transmission coefficient of the EBG structure is then obtained by using a plane-wave cascading approach considering single mode interactions between PRSs. The accuracy of the results given by the hybrid method is assessed compared to those obtained directly by the Finite Difference Time Domain (FDTD) method. The minima and maxima envelops and the resonance frequencies of the transmission coefficient are studied, with analytical expressions, for both, excitation from outside and excitation from inside. A discussion is also presented concerning the strength of the coefficient greater than one obtained when the plane-wave source is inside the EBG structure. In addition, by using a transmission line model, a normalized version for this coefficient is proposed, which considers the available power by the source.

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Microwave Applications of Photonic Crystals

Cited by 71 publications

References 48 publications

Enhancement of Omnidirectional Reflection in Photonic Crystal Heterostructures

Enhancement of Omnidirectional Reflection in Photonic Crystal Heterostructures

Broad Omnidirectional Reflector in the One-Dimensional Ternary Photonic Crystals Containing Superconductor

Multi-Layer Crystals of Metallic Wires: Analysis of the Transmission Coefficient for Outside and Inside Exciation

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