6533b82cfe1ef96bd128f52b
RESEARCH PRODUCT
2D photonic defect layers in 3D inverted opals on Si platforms
Fredrik JonssonJ. YeJouni AhopeltoSanna ArpiainenWorawut KhunsinDavid CassagneGudrun KocherB. LangeC. M. Sotomayor TorresSergei G. RomanovKevin VynckRudolf Zentelsubject
Materials sciencesuperlatticesSuperlatticePhysics::OpticsDielectricphotonic band gapCrystalCondensed Matter::Materials ScienceOpticselectron beam lithographyMonolayerPhotonic crystalrefractive indexnanotechnologybusiness.industrysiliconself-assemblyColloidal crystalmicro-opticsmonolayersintegrated opticsphotonic crystalsdielectric materialsOptoelectronicsPhotonicselemental semiconductorsbusinessElectron-beam lithographydescription
Dielectric spheres synthesised for the fabrication of self-organized photonic crystals such as opals offer large opportunities for the design of novel nanophotonic devices. In this paper, we show a hexagonal superlattice monolayer of dielectric spheres inscribed on a 3D colloidal photonic crystal by e-beam lithography. The crystal is produced by a variation of the vertical drawing deposition method assisted by an acoustic field. The structures were chosen after simulations showed that a hexagonal super-lattice monolayer in air exhibits an even photonic band gap below the light cone if the refractive index of the spheres is higher than 1.93.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2006-06-01 |