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RESEARCH PRODUCT
Micromoulding of three-dimensional photonic crystals on silicon substrates
M. J. MintyPatrick FerrandJouni AhopeltoC. M. Sotomayor TorresSergei G. RomanovRudolf ZentelMarc Egensubject
Materials scienceSiliconScanning electron microscopechemistry.chemical_elementBioengineering02 engineering and technology01 natural sciencesMicrosphereOpticsLattice (order)0103 physical sciencesGeneral Materials ScienceElectrical and Electronic Engineering010306 general physicsOptical reflectancePhotonic crystalchemistry.chemical_classification[PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics]business.industryMechanical EngineeringsiliconGeneral ChemistryPolymer021001 nanoscience & nanotechnologychemistryMechanics of Materialsphotonic crystalsOptoelectronicsSelf-assembly0210 nano-technologybusinessdescription
International audience; The growth of three-dimensional photonic crystals (PhCs) on patterned silicon substrates is reported. It is shown that deep trenches can be uniformly filled by a self-assembly of polymer microspheres, in a close-packed face-centred cubic lattice. The crystalline quality is compared for different channel widths. These observations are confirmed by optical reflectance measurements in the visible range, showing a bandwidth of enhanced reflection. The possibility to detach the PhC, i.e. to use the substrate as a mould, is also demonstrated. The potential of this approach for building PhC-based complex architectures is discussed.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2003-01-28 | Nanotechnology |