Olivier Vanbésien, Emmanuel Centeno's Dispersion Engineering for Integrated Nanophotonics PDF
By Olivier Vanbésien, Emmanuel Centeno
This e-book indicates how dispersion engineering in dimensional dielectric photonic crystals gives you new results for the suitable keep an eye on of sunshine propagation for built-in nanophotonics.
Dispersion engineering in average and graded photonic crystals to advertise anomalous refraction results is studied from the recommendations to experimental demonstration through nanofabrication concerns. Self collimation, extremely and destructive refraction, moment harmonic new release, mirage and invisibility results which result in an remarkable keep an eye on of sunshine propagation on the (sub-)wavelength scale for the sector of built-in nanophotonics are targeted and commented upon.
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These peaks can be identified as cavity modes induced by the successive rows of holes, with a number of peaks equal to the number of rows minus one, in accordance with the concept of a Fabry-Pérot cavity. 45 (-3dB) with a 12-row lens. The effect is even more accentuated under oblique incidence. Global transmission decreases progressively and peaks are slightly shifted towards higher 46 Dispersion Engineering for Integrated Nanophotonics wavelengths for small incidences (less than 15°). For higher incidence (for example 30°), transmission is severely degraded.
This discovery, again attributed to H. Kosaka, has led to intense research activity around the world owing to the possibility of realizing the wavelength division functionality in miniaturized devices. The origin of the superprism effect is again understood with the analysis of EFCs obtained for 2D PhCs. 30) drilled into a dielectric substrate of refractive index 3. 9. Around this angular area, for a fixed frequency, the direction of the group velocity drastically changes when the transverse wavevector k k 0 (sin B sin A ) (with k 0 2 / ) varies.
Olivier Vanbésien and Emmanuel Centeno. © ISTE Ltd 2014. Published by ISTE Ltd and John Wiley & Sons, Inc. 38 Dispersion Engineering for Integrated Nanophotonics In all of those discussions, one of the key points was the notion of “evanescent wave amplification” induced by the negative effective parameters of the “artificial material” (simultaneously negative effective permittivity and permeability or negative effective index of refraction). In particular, if we suppose the existence of a semi-infinite material, it contradicts basic physical laws, leading to divergent electromagnetic fields.
Dispersion Engineering for Integrated Nanophotonics by Olivier Vanbésien, Emmanuel Centeno