Optics of an opal modeled with a stratified effective index and the effect of the interface

Abstract : Reflection and transmission for an artificial opal are described through a model of stratified medium based upon a one-dimensional variation of an effective index. The model is notably applicable to a Langmuir-Blodgett type disordered opal. Light scattering is accounted for by a phenomenological absorption. The interface region between the opal and the substrate -or the vacuum- induces a periodicity break in the photonic crystal arrangement, which exhibits a prominent influence on the reflection, notably away from the Bragg reflection peak. Experimental results are compared to our model. The model is extendable to inverse opals, stacked cylinders, or irradiation by evanescent waves
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Journal of the Optical Society of America B, Optical Society of America, 2015, 32 (8), pp.1761. <10.1364/JOSAB.32.001761>
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https://hal.archives-ouvertes.fr/hal-01182328
Contributeur : Daniel Bloch <>
Soumis le : vendredi 31 juillet 2015 - 10:20:06
Dernière modification le : mardi 11 octobre 2016 - 14:47:53

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Isabelle Maurin, Elias Moufarej, Athanasios Laliotis, Daniel Bloch. Optics of an opal modeled with a stratified effective index and the effect of the interface. Journal of the Optical Society of America B, Optical Society of America, 2015, 32 (8), pp.1761. <10.1364/JOSAB.32.001761>. <hal-01182328>

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