Photonic slab heterostructures based on opals

Elisa Palacios-Lidon; Juan Francisco Galisteo-Lopez; Beatriz Hernandez Juarez; Cefe Lopez

doi:10.1117/12.544655

15 September 2004 Photonic slab heterostructures based on opals

Elisa Palacios-Lidon, Juan Francisco Galisteo-Lopez, Beatriz Hernandez Juarez, Cefe Lopez

Proceedings Volume 5450, Photonic Crystal Materials and Nanostructures; (2004) https://doi.org/10.1117/12.544655
Event: Photonics Europe, 2004, Strasbourg, France

Abstract

In this paper the fabrication of photonic slab heterostructures based on artificial opals is presented. The innovated method combines high-quality thin-films growing of opals and silica infiltration by Chemical Vapor Deposition through a multi-step process. By varying structure parameters, such as lattice constant, sample thickness or refractive index, different heterostructures have been obtained. The optical study of these systems, carried out by reflectance and transmittance measurements, shows that the prepared samples are of high quality further confirmed by Scanning Electron Microscopy micrographs. The proposed novel method for sample preparation allows a high control of the involved structure parameters, giving the possibility of tunning their photonic behavior. Special attention in the optical response of these materials has been addressed to the study of planar defects embedded in opals, due to their importance in different photonic fields and future technological applications. Reflectance and transmission measurements show a sharp resonance due to localized states associated with the presence of planar defects. A detailed study of the defect mode position and its dependance on defect thickness and on the surrounding photonic crystal is presented as well as evidence showing the scalability of the problem. Finally, it is also concluded that the proposed method is cheap and versatile allowing the preparation of opal-based complex structures.

Citation Download Citation

Elisa Palacios-Lidon, Juan Francisco Galisteo-Lopez, Beatriz Hernandez Juarez, and Cefe Lopez "Photonic slab heterostructures based on opals", Proc. SPIE 5450, Photonic Crystal Materials and Nanostructures, (15 September 2004); https://doi.org/10.1117/12.544655

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