Localization properties of photonic modes in disordered nonlinear-Kerr/metamaterial heterostructures

Autor(es)

Reyes-Gomez, E. ^[1] ; Cavalcanti, S. B. ^[2] ; Oliveira, L. E. ^[3]

Afiliação do(s) autor(es)

^[1] Univ Antioquia, Inst Fis, Calle 70 52-21, Medellin - Colombia

^[2] Univ Fed Alagoas, Inst Fis, BR-57072970 Maceio, AL - Brazil

^[3] Univ Estadual Campinas UNICAMP, Inst Fis, BR-13083859 Campinas, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: SUPERLATTICES AND MICROSTRUCTURES; v. 90, p. 1-7, FEB 2016.
• Citações Web of Science: 0

Resumo

The localization properties of electromagnetic waves in one-dimensional disordered nonlinear-Kerr/metamaterial heterostructures are investigated. Structural disorder is introduced via a random fluctuation of layer widths of both nonlinear-Kerr and metamaterial slabs composing the photonic heterostructure. For frequency values in the vicinity of the zero-n gap, multiple electromagnetic modes with different transmission lengths are obtained for a given value of the Kerr defocusing nonlinearity power. Maximum-delocalized photonic states, which are associated with high-transmission electromagnetic modes corresponding to gap-soliton waves, are found to be quite sensitive with respect to the degree of disorder. Moreover, we have found that inclusion of absorption effects leads, as expected, to a decreasing of the transmission length. (C) 2015 Elsevier Ltd. All rights reserved. (AU)

• Processo FAPESP: 12/51691-0 - A física de novos materiais e nanoestruturas semicondutoras
• Beneficiário: Luiz Eduardo Moreira Carvalho de Oliveira
• Modalidade de apoio: Auxílio à Pesquisa - Temático