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RESEARCH PRODUCT
Role of dispersion on zero-average-index bandgaps
Ricardo A. DepineJuan A. MonsoriuMaría L. Martínez-ricciEnrique Silvestresubject
PhysicsCondensed matter physicsbusiness.industryWave propagationBand gapCiencias FísicasPHOTONIC CRYSTALSPhysics::OpticsMetamaterialStatistical and Nonlinear PhysicsInterference (wave propagation)Atomic and Molecular Physics and OpticsNEGATIVE INDEXAstronomíaCondensed Matter::Materials ScienceOpticsPHOTONIC BAND GAPNegative refractionDispersion (optics)MULTILAYERSPhotonicsbusinessRefractive indexCIENCIAS NATURALES Y EXACTASdescription
We consider periodic multilayers combining ordinary positive index materials and dispersive metamaterials with negative index in some frequency ranges. These structures can exhibit photonic bandgaps which, in contrast with the usual Bragg gaps, are not based on interference mechanisms. Changing the dispersion models for the constituent metamaterial, we investigate its role in the production of zero-average-index bandgaps. In particular, we show the effect of each constitutive parameter on both bandgap edges. Finally, we give some approximated analytical expressions in terms of average parameters for the determination of the upper and lower limits of the zero-average refractive-index bandgap. © 2009 Optical Society of America. Fil: Silvestre, Enrique. Universidad de Valencia; España Fil: Depine, Ricardo Angel. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Física. Grupo de Electromagnetismo Aplicado; Argentina Fil: Martinez Ricci, Maria Luz. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Física. Grupo de Electromagnetismo Aplicado; Argentina Fil: Monsoriu, Juan A.. Universidad Politécnica de Valencia; España
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2009-03-03 |