Photonic Crystal<tex>$mmb k$</tex>-Vector Superprism
نویسندگان
چکیده
منابع مشابه
Structural Study of Photonic Crystal as Superprism
The superprism behavior of Photonic Crystal (PC) due to different geometrical shapes, e.g., circular, hexagonal and square of air holes arranged in triangular lattice has been studied. Structures rely on phase velocity sensitivity in a 2D photonic crystal slab to observe and compare the angular magnification in the uniform medium outside the PC. The observation of superprism behavior has been m...
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This paper investigates the superprism effect in opal-based three-dimensional photonic crystals which consist of an face-centered cubic ~fcc! array of close-packed dielectric spheres embedded in a host. The light propagation angle inside the opals is determined by the group velocity vector of the bulk eigenmodes having the strongest coupling with the incident light at the boundary of the opal. ...
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We present the analysis and design of a new type of photonic crystal (PC) demultiplexers (i.e., preconditioned demultiplexer), in which the simultaneous existence of the superprism effect and the negative effective index for diffraction results in a compact structure by canceling the second-order spectral phase to avoid beam broadening inside the PC. This approach considerably relaxes the requi...
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The superprism phenomenon is the extremely large angular dispersion experienced by a light beam when entering a photonic crystal. This arises from the anisotropy of the photonic band structure. Strong anisotropy can be present even in systems without a complete photonic band gap. Here, we describe a theoretical investigation of the superprism effect in three-dimensional macroporous polymer phot...
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We propose a novel compact wavelength demultiplexer, for which two functions arising from the anomalous dispersion characteristics of photonic crystals are combined. One is the superprism that exhibits large angular dispersion and expansion of light beam. The other is the superlens used for the focusing of the expanded light beam. Theoretically, a high resolution of 0.4 nm will be realized in t...
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ژورنال
عنوان ژورنال: Journal of Lightwave Technology
سال: 2004
ISSN: 0733-8724
DOI: 10.1109/jlt.2004.824537