Designing waveguides and microcavities in hybrid architectures based on direct and inverse opals - art. no. 659319 - Archive ouverte HAL Accéder directement au contenu
Communication Dans Un Congrès Année : 2007

Designing waveguides and microcavities in hybrid architectures based on direct and inverse opals - art. no. 659319

Kevin Vynck
G. Qiu
  • Fonction : Auteur
David Cassagne
Emmanuel Centeno
  • Fonction : Auteur
  • PersonId : 865110

Résumé

In the past few years, self assembly colloidal structures based on opals have received large attention because they offer a cost-effective way of designing ultra-compact and efficient all-optical devices. In this study, we present various approaches to design waveguides and cavities in three-dimensional opal-based photonic crystals. Three practical designs with size suitable to telecommunication technologies at 1.55 mu m are presented. First, we show that the creation of a hexagonal superlattice of defects in a direct monolayer of spheres yields the opening of a photonic band. gap below the light line so that the inclusion of a linear defect in this structure enables the creation of a theoretically lossless waveguide. We also propose the design of a waveguide in a 2D-3D heterostructure, where a graphite lattice of rods is sandwiched between two inverse opal claddings. This structure enables single-mode waveguiding with a maximal bandwidth of 129 nm. Finally, we give the design of a linear cavity, whose quality factor is increased by a factor of 5 when surrounded by an inverse opal.
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Dates et versions

hal-00437307 , version 1 (30-11-2009)

Identifiants

  • HAL Id : hal-00437307 , version 1

Citer

Kevin Vynck, G. Qiu, David Cassagne, Emmanuel Centeno. Designing waveguides and microcavities in hybrid architectures based on direct and inverse opals - art. no. 659319. Conference on Photonic Materials, Devices and Applications II, May 2007, Maspalomas (SPAIN), Spain. pp.59319-59319. ⟨hal-00437307⟩
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