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(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

Perturbing beyond the shallow amplitude regime: Green's function scattering formalism with Bloch modes

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Autor(es):
Abass, A. [1] ; Martins, A. [2] ; Nanz, S. [3] ; Borges, V, B-H ; Martins, E. R. [4] ; Rockstuhl, C. [3, 1]
Número total de Autores: 6
Afiliação do(s) autor(es):
[1] KIT, Inst Nanotechnol, D-76021 Karlsruhe - Germany
[2] Univ Sao Paulo, Dept Elect & Comp Engn, BR-13566590 Sao Carlos, SP - Brazil
[3] Karlsruhe Inst Technol, Inst Theoret Solid State Phys, Wolfgang Gaede Str 1, D-76131 Karlsruhe - Germany
[4] Borges, B-H, V, Univ Sao Paulo, Dept Elect & Comp Engn, BR-13566590 Sao Carlos, SP - Brazil
Número total de Afiliações: 4
Tipo de documento: Artigo Científico
Fonte: JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS; v. 36, n. 8, p. F89-F98, AUG 1 2019.
Citações Web of Science: 0
Resumo

We present a Bloch modes-based Green's function scattering formalism for cost-efficient forward modeling of disordered binary surface textures. The usage of Bloch modes of an unperturbed reference ordered system as an ansatz allows our formalism to address surface scattering beyond the shallow amplitude regime. The main advantage of our formalism is the possibility to utilize a small amount of plane waves to represent the assumed Bloch modes thereby reducing computational costs, while still allowing one to estimate the scattering response to all channels accessible by the disordered system. Benchmarking calculations discussed in the paper demonstrate how the usage of our Bloch modes ansatz provides an excellent estimate of the scattering response over an important regime of disorder. As an example of our method's strength, we examine an electrically decoupled binary light trapping texture and demonstrate how introducing disorder may improve light in-coupling into the considered solar cell structure. (C) 2019 Optical Society of America (AU)

Processo FAPESP: 15/50268-5 - Novel metamaterials for rf/microwave and optical applications
Beneficiário:Ben-Hur Viana Borges
Modalidade de apoio: Auxílio à Pesquisa - Regular