3-dimensional photonic crystals
Germanium Based Two Dimensional Photonic Crystals: The Hexagonal and Honeycomb Lattices
... band diagram for this structure is shown in Figure 8(a). Figure 8(b) shows the gap map for this structure for both polarizations. From this gap map, we find that as the radius of the rods is increased, a TM band-gap ...
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Comparative Study of the One Dimensional Dielectric and Metallic Photonic Crystals
... On the other hand, when electromagnetic waves (EM) incident on the PCs Bloch states create in the crystal, if the Bloch wave falls in the so called forbidden bands (photonic band gap) such a wave is evanescent and ...
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Design and Simulation of Butterworth Filter based on One-Dimensional Photonic Crystals using Transfer Matrix Method
... one- dimensional photonic crystals structure, we will consider the principles of operation and the Mathematical functions of this type of filter ...
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Effective Plasma Frequency for Two- Dimensional Metallic Photonic Crystals
... We have plotted the band structure for H polarization when the filling fraction is extremely small which is f = 0.001 as shown in Figure 3(a). There are two parts in this graph. The lower part consists of straight ...
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Analysis of Post-Wall Waveguides and Circuits Using a Model of Two-Dimensional Photonic Crystals
... where ¯ R ¯ N 00 (β, ω) denotes the (0, 0) element of R ¯ ¯ N (ω, β). As will be shown later, the reduced dispersion Equation (7) gives an excellent approximation to the full matrix Equation (6). The condition for the ...
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Design of three component one dimensional photonic crystals for alteration of optical contrast and omni directional reflection
... their unique properties in manipulating light. Photonic Crystals exhibit total reflection over a range of frequencies, that is, they have a Photonic Band Gap (PBG). Optical devices based on ...
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Germanium Based Two-Dimensional Photonic Crystals with Square Lattice
... on photonic crystals (PCs) [1–5] as they hold great promise for optoelectronic devices owing the ability to control electromagnetic wave propagation within a fairly large frequency ...a photonic band ...
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Properties of Omnidirectional Photonic Band Gaps in Fibonacci Quasi-Periodic One-Dimensional Superconductor Photonic Crystals
... edges of the OBG is insensitive to the increase of the incident angle for both polarizations. As shown in Fig. 3(a), there is an OBG for TE polarization in the display frequency range from 191 to 223.5 THz, and ...
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Design of 1D composite photonic crystals with an extended photonic band gap
... For one-dimensional 共 1D 兲 PCs there is an alternative ap- proach available to generate the gap map. Using the transfer matrix method, 3,4 the set of reflection spectra for the f values in the range from 0 to 1 is ...
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Design of One dimensional Photonic Crystals Using Combination of Band Diagram and Photonic Gap Map Approaches
... of photonic crystals ...others. 3–5 Furthermore, PCs have demonstrated their potential for ap- plication due to a number of microphotonic devices utilized ...one- dimensional 共1D兲 PCs, thanks ...
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Surface states in optical spectra of two dimensional photonic crystals with various surface terminations
... The spectral positions of surface dips in the experimental and theoretical spectra coincide with each other. However, there is some disagreement between experimental and the- oretical spectra calculated by the ...
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Design of Microwave Devices Exploiting Fibonacci and Hybrid Periodic/Fibonacci One Dimensional Photonic Crystals
... Figure 3(a) the transmission spectrum of Figure 2(b) (which represents the response of the sixth generation quasiperiodic Fibonacci sequence) for the range 20 GHz < f < 30 ...Figure 3(b), as the one ...
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Band Structure, Reflection Properties and Abnormal Behaviour of One-Dimensional Plasma Photonic Crystals
... Fig. 3 that if we increase the thickness of the plasma layers, the width of photonic band gap also increases same as what Hojo and Mase [30] and also Ojha et ...plasma photonic crystals PPC1 ...
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Fabrication of one dimensional photonic crystals by photoelectrochemical etching of silicon
... The deep trenches shown in Fig. 1 were formed as a result of the coalescence of pores the traces of which give rise to corrugation of walls’ surfaces (see also Fig. 2). The magnitude of roughness of the walls is an ...
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Broadening of Omnidirectional Photonic Band Gap in Si-Based One Dimensional Photonic Crystals
... complete photonic band structure in two dimensions which can be obtained by the projections of Figure ...Figure 3, the shaded region gives the total omnidirectional reflection ...
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Double Cavity Fabry Perot Resonators Based on One Dimensional Silicon Photonic Crystals
... one-dimensional photonic crystal the filling of two defined air grooves with a filler of a different refractive index leads to the appearance of two resonant modes, the position of which can be tuned ...
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Three-Dimensional Self-Assembly of Brush Block Copolymers to Photonic Crystals
... Brush polymers consist of a linear polymer backbone with densely spaced, polymeric side chains. Due to these side chains, the high molecular weight macromolecule is forced to hold a cylindrical or worm-like shape. This ...
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Slow light in photonic crystals
... Photonic crystals are multi-dimensional periodic structures with a period of the order of the optical wavelength ...of photonic band theory, an optical analogue to electronic band theory, ...
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Omnidirectional Photonic Band Gap Expansion In Graphene Based One Dimensional Photonic Crystals
... From the computation of Equation (3), the reflection properties of one-dimensional GSPC can be expressed asgraphically.For the analysis , we consider a GSPC structure with the following sequence — ...
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Chaotic behaviour of photonic crystals resonators
... fig. 3 shows a chaotic PhC resonator with a single line defect PhC waveguide, whereas panel b) shows the same system with an output waveguide obtained removing 30 holes from the regular ...
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