Band-gap engineering in two-dimensional periodic photonic crystals
نویسندگان
چکیده
منابع مشابه
Band-gap engineering in two-dimensional periodic photonic crystals
A theoretical investigation is made of the dispersion characteristics of plasmons in a twodimensional periodic system of semiconductor (dielectric) cylinders embedded in a dielectric (semiconductor) background. We consider both square and hexagonal arrangements and calculate extensive band structures for plasmons using a plane-wave method within the framework of a local theory. It is found that...
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We consider the two-component dielectric medium consisting of a periodic array of parallel air columns of square cross section embedded into a lossless optically dense host material with the dielectric constant (> 1. We show that if (is large enough and the relative distance 8 between the air columns is such that (8 » 1 and (8 2 « 1, then the corresponding Maxwell operator has a series of gaps ...
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We describe the lithographic control over the spectral response of three-dimensional photonic crystals. By precise microfabrication of the geometry using a reproducible and reliable procedure consisting of electron beam lithography followed by dry etching, we have shifted the conduction band of crystals within the near-infrared. Such microfabrication has enabled us to reproducibly define photon...
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A known algorithm for modeling quasi-periodic lattices is used to generate two-dimensional quadratic nonlinear photonic quasi-crystals containing a set of desired discrete spectral components. This allows us to fabricate optical devices in which an arbitrary set of nonlinear optical processes can be efficient. We demonstrate this capability by fabricating two devices: a multidirectional single-...
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ژورنال
عنوان ژورنال: Journal of Applied Physics
سال: 2000
ISSN: 0021-8979,1089-7550
DOI: 10.1063/1.1288229