2024-03-29T07:23:28Zhttp://digital.csic.es/dspace-oai/requestoai:digital.csic.es:10261/1076652016-05-06T09:30:07Zcom_10261_98com_10261_3col_10261_351
Botey, Muriel
Míguez, Hernán
Dorado, Luis A.
Depine, Ricardo A.
Martorell, Jordi
2014-11-17T12:31:57Z
2014-11-17T12:31:57Z
2011
International Conference on Transparent Optical Networks (2011)
http://hdl.handle.net/10261/107665
10.110/ICTON.2011.5971145
The propagation of light through 3D ordered photonic nanostructures is strongly affected by real aspects of
actual crystals, especially at the spectral range where the wavelength of light is on the order of the lattice
parameter. We perform a theoretical study on anomalous light propagation in finite thin artificial opal slabs made
of a reduced number of layers. The vector KKR method we use accounts for the finite character of the structure
and for different sources of losses. We show that an interplay between finite-size effects and losses engineers
group velocity at this high energy range. Only depending on the crystal size and extinction, light propagation can
either be superluminal (positive or negative) or approach zero for certain frequencies. The numerically calculated
group index is in good agreement with experimental results some of which remained partially unexplained
eng
openAccess
Photonic bandgap materials
Nanomaterials
Finite-size effects
Slow light
Fast light
Anomalous Light Propagation, Finite Size-Effects and Losses in Real 3D Photonic Nanostructures
artículo