| Texto completo | |
| Autor(es): |
Damasceno, Gabriel H. B.
;
Carvalho, William O. F.
;
Sodre, Arismar Cerqueira
;
Oliveira Jr, Osvaldo N.
;
Mejia-Salazar, Jorge Ricardo
Número total de Autores: 5
|
| Tipo de documento: | Artigo Científico |
| Fonte: | ACS APPLIED MATERIALS & INTERFACES; v. N/A, p. 7-pg., 2023-01-23. |
| Resumo | |
On-chip wireless communications require optical nanoantennas with dynamically tunable radiation patterns, which may allow for higher integration with multiple nanoantennas instead of two fixed nanoantennas in existing approaches. In this paper, we introduce a concept to enable active manipulation of radiated beam steering using applied magnetic fields. The proposed system consists of a highly directive Yagi-Uda-like arrangement of magnetoplasmonic nanoribs made of Co6Ag94 and immersed in SiO2. Numerical demonstration of the tilting of the radiated beam from the nanoantenna on its plane is provided with full-wave electromagnetic simulations using the finite element method. The tilt direction of the radiated beam can be changed by reversing the magnetization direction, while the conventional plasmonic nanoantenna pattern is recovered by demagnetizing the system. The geometry of the nanoantenna can be tailored to work at optical or infrared wavelengths, but a proof of concept for lambda = 700 nm is conducted for taking advantage of the high magneto-optical activity of Co6Ag94. The design was based on experimental data for materials that can be fabricated via nanolithography, thus permitting magnetically on-chip reconfigurable optical wireless communications. (AU) | |
| Processo FAPESP: | 22/14229-9 - Projeto e Desenvolvimento de Metassuperfícies Flexíveis para Aplicações em Biossensoriamento e Telecomunicações |
| Beneficiário: | Osvaldo Novais de Oliveira Junior |
| Modalidade de apoio: | Auxílio à Pesquisa - Pesquisador Visitante - Brasil |
| Processo FAPESP: | 18/22214-6 - Rumo à convergência de tecnologias: de sensores e biossensores à visualização de informação e aprendizado de máquina para análise de dados em diagnóstico clínico |
| Beneficiário: | Osvaldo Novais de Oliveira Junior |
| Modalidade de apoio: | Auxílio à Pesquisa - Temático |
| Processo FAPESP: | 21/06946-0 - Comunicações auxiliadas por superfícies inteligentes e reconfiguráveis para 6G e além |
| Beneficiário: | Rausley Adriano Amaral de Souza |
| Modalidade de apoio: | Auxílio à Pesquisa - Regular |