%0 Journal Article %1 WOS:000241450600165 %A de Medeiros, F F %A Albuquerque, E L %A Vasconcelos, M S %A Farias, G A %C RADARWEG 29, 1043 NX AMSTERDAM, NETHERLANDS %D 2006 %I ELSEVIER %J SURFACE SCIENCE %K beam epitaxy; gallium interfaces} molecular nitride; quantum semiconductor-insulator simulation; surface waves-polaritons; wells; {computer %N 18, SI %P 4337-4341 %R 10.1016/j.susc.2006.02.076 %T Exciton-polariton confinement in Fibonacci quasiperiodic superlattice %V 600 %X We investigate the propagation of exciton-polaritons (bulk and surface modes) in quasiperiodic superlattices of Fibonacci type, truncated at z = 0, where z is defined as the growth axis. For our purposes, the Fibonacci structure can be realized experimentally by juxtaposing two basic building blocks A and B, following a Fibonacci sequential rule. Here A is the spatially dispersive medium modelled by a semiconductor from the nitride family (GaN, for instance), which alternates with a common dielectric medium B (sapphire). Our main aim is the investigation of the modified optical properties of the exciton polariton modes for a better understanding of the dynamics of the excitation in confined systems. The dispersion relation shows a bottleneck profile for the superlattice modes, whose behavior is similar to those found in the bulk crystal. The Cantor-like energy spectrum is also investigated, and scaling properties are shown for the Fibonacci quasiperiodic structure. (c) 2006 Elsevier B.V. All rights reserved.

@article{WOS:000241450600165, abstract = {We investigate the propagation of exciton-polaritons (bulk and surface modes) in quasiperiodic superlattices of Fibonacci type, truncated at z = 0, where z is defined as the growth axis. For our purposes, the Fibonacci structure can be realized experimentally by juxtaposing two basic building blocks A and B, following a Fibonacci sequential rule. Here A is the spatially dispersive medium modelled by a semiconductor from the nitride family (GaN, for instance), which alternates with a common dielectric medium B (sapphire). Our main aim is the investigation of the modified optical properties of the exciton polariton modes for a better understanding of the dynamics of the excitation in confined systems. The dispersion relation shows a bottleneck profile for the superlattice modes, whose behavior is similar to those found in the bulk crystal. The Cantor-like energy spectrum is also investigated, and scaling properties are shown for the Fibonacci quasiperiodic structure. (c) 2006 Elsevier B.V. All rights reserved.}, added-at = {2022-05-23T20:00:14.000+0200}, address = {RADARWEG 29, 1043 NX AMSTERDAM, NETHERLANDS}, author = {de Medeiros, F F and Albuquerque, E L and Vasconcelos, M S and Farias, G A}, biburl = {https://www.bibsonomy.org/bibtex/2ceaf2f99253840bc4c872a2eb2b62b94/ppgfis_ufc_br}, doi = {10.1016/j.susc.2006.02.076}, interhash = {65cf78f753a16c6311592175f1f8f855}, intrahash = {ceaf2f99253840bc4c872a2eb2b62b94}, issn = {0039-6028}, journal = {SURFACE SCIENCE}, keywords = {beam epitaxy; gallium interfaces} molecular nitride; quantum semiconductor-insulator simulation; surface waves-polaritons; wells; {computer}, note = {23rd European Conference on Surface Science (ECOSS-23), Freie Univ, Berlin, GERMANY, SEP 04-09, 2005}, number = {18, SI}, pages = {4337-4341}, publisher = {ELSEVIER}, pubstate = {published}, timestamp = {2022-05-23T20:00:14.000+0200}, title = {Exciton-polariton confinement in Fibonacci quasiperiodic superlattice}, tppubtype = {article}, volume = 600, year = 2006 }