| Texto completo | |
| Autor(es): |
Pita, Julian L.
[1]
;
Aldaya, Ivan
[2, 3]
;
Dainese, Paulo
[2]
;
Hernandez-Figueroa, Hugo E.
[1]
;
Gabrielli, Lucas H.
[1]
Número total de Autores: 5
|
| Afiliação do(s) autor(es): | [1] Univ Campinas UNICAMP, Sch Elect & Comp Engn, BR-13083852 Campinas, SP - Brazil
[2] Univ Campinas UNICAMP, Inst Phys Gleb Wataghin, BR-13083859 Campinas, SP - Brazil
[3] State Univ Sao Paulo UNESP, Campus Sao Joao da Boa Vista, BR-13876750 Sao Joao Da Boa Vista, SP - Brazil
Número total de Afiliações: 3
|
| Tipo de documento: | Artigo Científico |
| Fonte: | Optics Express; v. 26, n. 3, p. 2435-2442, FEB 5 2018. |
| Citações Web of Science: | 1 |
| Resumo | |
Photonic antennas are critical in applications such as spectroscopy, photovoltaics, optical communications, holography, and sensors. In most of those applications, metallic antennas have been employed due to their reduced sizes. Nevertheless, compact metallic antennas suffer from high dissipative loss, wavelength-dependent radiation pattern, and they are difficult to integrate with CMOS technology. All-dielectric antennas have been proposed to overcome those disadvantages because, in contrast to metallic ones, they are CMOS-compatible, easier to integrate with typical silicon waveguides, and they generally present a broader wavelength range of operation. These advantages are achieved, however, at the expense of larger footprints that prevent dense integration and their use in massive phased arrays. In order to overcome this drawback, we employ topological optimization to design an all-dielectric compact antenna with vertical emission over a broad wavelength range. The fabricated device has a footprint of 1.78 mu m x 1.78 mu m and shows a shift in the direction of its main radiation lobe of only 4 degrees over wavelengths ranging from 1470 nm to 1550 nm and a coupling efficiency bandwidth broader than 150 nm. (c) 2018 Optical Society of America under the terms of the OSA Open Access Publishing Agreement (AU) | |
| Processo FAPESP: | 08/57857-2 - Fotônica para comunicações ópticas |
| Beneficiário: | Hugo Luis Fragnito |
| Modalidade de apoio: | Auxílio à Pesquisa - Temático |
| Processo FAPESP: | 13/20180-3 - Processos de espalhamento de luz em microestruturas fotônicas |
| Beneficiário: | Paulo Clóvis Dainese Júnior |
| Modalidade de apoio: | Auxílio à Pesquisa - Jovens Pesquisadores |
| Processo FAPESP: | 15/24517-8 - Fotônica para internet de nova geração |
| Beneficiário: | Hugo Enrique Hernández Figueroa |
| Modalidade de apoio: | Auxílio à Pesquisa - Temático |
| Processo FAPESP: | 16/19270-6 - Acopladores multimodo para fotônica integrada |
| Beneficiário: | Lucas Heitzmann Gabrielli |
| Modalidade de apoio: | Auxílio à Pesquisa - Jovens Pesquisadores |
| Processo FAPESP: | 15/04113-0 - Não linearidades em Guias de Onda baseados em Silício |
| Beneficiário: | Ivan Aritz Aldaya Garde |
| Modalidade de apoio: | Bolsas no Brasil - Pós-Doutorado |