silicon-based photonic crystals
Silicon based photonic crystals fabricated using proton beam writing combined with electrochemical etching method
... (3D) photonic crystal with complete band gap is ...3D silicon-based photonic crystals with 3D complete band gap, such as double-angled reactive ion etching [12], macropore formation in ...
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Design, fabrication and optical characterization of one dimensional two and multi component photonic crystals based on silicon
... Section 4.4.5 Optimization: Compensation of the fabrication tolerances Number of periods, N Lattice constant, a fpm Filling fraction of Si fsi Refractive index of Si, nH=nsi Refractive i[r] ...
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Numerical methods for calculation of optical properties of
... structures based on grooved silicon in one case and silica in another, which can be utilized as one-dimensional photonic crystals (1D ...through photonic crystal is prohibited in ...
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Chaotic behaviour of photonic crystals resonators
... of photonic cavities that exploit chaos to trap efficiently light, by fulfilling the impedance matching requirements for a broad range of ...adopt Photonic Crystals (PhCs) resonators based on ...
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Double Cavity Fabry Perot Resonators Based on One Dimensional Silicon Photonic Crystals
... liquid crystals with a large range of Δn, the tuning of the resonance modes has been significantly extended, for example, in the case of the cascade resonator ...one-dimensional photonic crystal (1D PhC) ...
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Tunable Photonic Crystals Based on Electrochemically Etched Porous Silicon
... filter. This cavity acts as a region where certain wavelengths are absorbed or transmitted in porous silicon as shown by the dip in peak wavelength of the DBR. The result was found to agree with other papers such ...
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Tunable photonic structures based on silicon and liquid crystals
... approach based on the gap map (GM) presentation of PBGs is described in ...21 photonic structures, since it allows quick and easy analysis of the structures on a large set of spectra (normally around 100) ...
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Alignment of liquid crystal E7 in composite photonic crystals based on single crystal silicon
... the silicon windows for bulk cells or to the substrate of grooved silicon as shown in ...the photonic properties (photonic band gaps for instance) of grooved Si + LC composite structure the ...
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Active slow light in silicon photonic crystals : tunable delay and Raman gain
... is based on wavelength conversion and dispersion [19–21]: if an input signal is shifted in wavelength and coupled into a dispersive medium, it will propagate at a different speed with respect to an unshifted ...
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Germanium Based Two Dimensional Photonic Crystals: The Hexagonal and Honeycomb Lattices
... some photonic crystal books [15] [16] and papers ...on silicon based 2D PC [18], but, to our knowledge, there exists no publication on the properties of germanium based 2D ...two-dimensional ...
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Design of 1D composite photonic crystals with an extended photonic band gap
... Photonic crystals 共PCs兲 are materials with a periodic modulation of the dielectric ...a photonic band gap 共PBG兲 within the ...within photonic crys- tals is to analyze the dispersion ...
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Tailoring Thermal Radiation from Near Field to Far Field
... Active control of heat flow is of great importance in areas such as energy conversion, industrial and civil cooling/heating process, and thermal logic. Conventionally, through controlling the valves in heat transfer ...
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Complete and absolute photonic bandgaps in highly symmetric photonic quasicrystals embedded in low refractive index mate
... Further simulations were undertaken to highlight the degree of isotropy of the PBG. A photonic quasicrystal having a pitch spacing of a= 260 nm and an air filling fraction of b =28% was investigated. Transmission ...
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Analysis of Post-Wall Waveguides and Circuits Using a Model of Two-Dimensional Photonic Crystals
... a perturbation analysis, the attenuation constant (due to the leakage loss) and the effective width of the equivalent rectangular waveguide are calculated. To validate the proposed formalism, numerical examples for ...
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Nanoscale waveguiding methods
... density photonic ICs, we exam- ine the current state of methods in the ...dielectric based wave- guides as well as a few sub-micrometer techniques such as nanoribbons, high-index contrast and ...
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CRITICAL NATIONAL NEED IDEA NEW APPROACHES TOWARD MAKING THIN FILM SOLAR CELLS COST COMPETITIVE. AccuStrata, Inc.
... some silicon- and CdTe-based companies are able to achieve higher manufacturing yields, the CIGS-based companies struggle on a daily basis with the problem of thin film non-uniformity and other ...
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Wavelength scale Confinement of Light and Its Applications in On Chip Photonic Devices
... with silicon strip waveguides, whose magnitude seems too large to be explained by TPA ...in silicon strip waveguide. Measurements are made on silicon strip waveguide of various lengths from ...The ...
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Band Structure and Dispersion Properties of Photonic Quasicrystals
... 2-D photonic quasicrystals, numerical methods have been ...dodecagonal photonic quasicrystals have been calculated by finite difference time domain (FDTD) analysis ...
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Photonic porous silicon as a pH sensor
... lacking the polymer. Penetration of water into the porous layer, associated to a change of color of the sample, only occurred at low pH. Our study therefore provides proof- of-principle that photonic pSi can be ...
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Photonic crystals as functional mirrors for semiconductor lasers
... a photonic crystal with the frequency domain approach, we need only define the unit cell and then apply periodic boundary conditions at the cell ...the photonic crystals in the remainder of this ...
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