| Texto completo | |
| Autor(es): |
da Mota, Achiles F.
[1, 2]
;
Martins, Augusto
[2]
;
Pepino, Vinicius
[2]
;
Ottevaere, Heidi
[1]
;
Meulebroeck, Wendy
[1]
;
Teixeira, Fernando L.
[3]
;
Borges, V, Ben-Hur
Número total de Autores: 7
|
| Afiliação do(s) autor(es): | [1] Vrije Univ Brussels, Dept Appl Phys & Photon, Brussels Photon Team, B-1050 Brussels - Belgium
[2] V, Univ Sao Paulo, Dept Elect & Comp Engn, BR-13566590 Sao Carlos, SP - Brazil
[3] Ohio State Univ, Dept Elect & Comp Engn, ElectroSci Lab, Columbus, OH 43210 - USA
Número total de Afiliações: 3
|
| Tipo de documento: | Artigo Científico |
| Fonte: | JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS; v. 36, n. 5, p. 1273-1287, MAY 1 2019. |
| Citações Web of Science: | 0 |
| Resumo | |
Nanopatterned hyperbolic metamaterials (NPHMs) have proven to be efficient structures for enhancing the spontaneous emission rate (Gamma) and quantum efficiency (eta) of quantum emitters (QEs). However, many of the NPHM designs still rely on computationally costly 3D numerical simulations. In this context, we propose a fast, semi-analytical method capable of calculating both Gamma and eta of QEs placed inside a medium bounded by nanopatterned structures. The low computational cost of our approach makes it attractive for optimizing the NPHMs' geometrical parameters that maximize eta for a desired Gamma. Furthermore, we suggest a more realistic procedure to calculate the decay behavior of multiple QEs arbitrarily distributed in the NPHM. This calculation is only feasible with the knowledge of Gamma and eta mapped for all possible positions of the QEs, which is easily achieved with the proposed model. For the validation procedure, we compare the model results with those obtained by the FDTD method. We apply the proposed model to an NPHM composed of nine Ag/SiO2 layers, with the polymer host layer embedded with rhodamine 6G, to maximize eta for a specified tenfold increase of Gamma. This procedure allowed eta to be increased by 69% and 170% for 1D and 2D nanopatterning, respectively. The time required to build the Gamma and eta maps (used in the calculation of the decay behavior) is reduced by approximately 96% when compared with those numerically calculated via FDTD. (C) 2019 Optical Society of America (AU) | |
| Processo FAPESP: | 15/21455-1 - Projeto, fabricação e caracterização de meta-superfícies para aplicações em óptica difrativa |
| Beneficiário: | Augusto Martins |
| Modalidade de apoio: | Bolsas no Brasil - Doutorado Direto |
| Processo FAPESP: | 13/07276-1 - CEPOF - Centro de Pesquisa em Óptica e Fotônica |
| Beneficiário: | Vanderlei Salvador Bagnato |
| Modalidade de apoio: | Auxílio à Pesquisa - Centros de Pesquisa, Inovação e Difusão - CEPIDs |
| 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 |
| Processo FAPESP: | 18/11388-3 - Metamateriais hiperbólicos nano-estruturados para aplicações em telecomunicações e sensoriamento |
| Beneficiário: | Achiles Fontana da Mota |
| Modalidade de apoio: | Bolsas no Brasil - Pós-Doutorado |