Zobrazeno 1 - 10
of 21
pro vyhledávání: '"Achiles F. da Mota"'
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-17 (2024)
Abstract The advancement of imaging systems has significantly ameliorated various technologies, including Intelligence Surveillance Reconnaissance Systems and Guidance Systems, by enhancing target detection, recognition, identification, positioning,
Externí odkaz:
https://doaj.org/article/56c7a1d0e7684c5da56cbaec33bee720
Publikováno v:
Scientific Reports, Vol 13, Iss 1, Pp 1-11 (2023)
Abstract The temporal Talbot effect is a passive phenomenon that occurs when a periodic signal propagates through a dispersive medium with a quadratic phase response that modulates the output pulse repetition rate based on the input period. As previo
Externí odkaz:
https://doaj.org/article/7cbaec852fca4f068d04227018a42751
Publikováno v:
Advanced Photonics Research, Vol 4, Iss 7, Pp n/a-n/a (2023)
Orbital angular momentum and polarization states of highly focused vector vortex beams can be engineered to selectively excite the desired multipoles in nanoparticles, making them ideal candidates for complex optical applications. A platform based on
Externí odkaz:
https://doaj.org/article/ffd60dfedacb44f295600c455104e818
Publikováno v:
2021 Fifteenth International Congress on Artificial Materials for Novel Wave Phenomena (Metamaterials).
In this manuscript, we propose a novel transmissive metasurface capable of dynamically controlling the phase of linear polarized waves at the microwave regime. The local phase control is dynamically obtained with the help of individually controlled v
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c4dca1b293eff660283ff3d7c5afb2b2
https://doi.org/10.1109/metamaterials52332.2021.9577155
https://doi.org/10.1109/metamaterials52332.2021.9577155
Publikováno v:
Journal of the Optical Society of America B. 39:1763
A fully passive terahertz (THz) pulse amplification device is proposed based on leveraging the temporal Talbot effect (TTE) on a highly dispersive silicon-based metamaterial Bragg fiber. To maximize the TTE passive gain, we introduce and explore thre
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bd3e4ea17fc6fab60a53cdbe09941fa4
https://doi.org/10.1364/josab.454550
https://doi.org/10.1364/josab.454550
Autor:
Achiles F. da Mota, Ben-Hur V. Borges, Mateus I. O. Souza, João Paulo Carmo, Vinicius M. Pepino
Publikováno v:
Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP
Universidade de São Paulo (USP)
instacron:USP
In this paper, a microwave biosensor with unprecedented sensitivity based on encoded pulse propagation and microfluidics is theoretically investigated and experimentally demonstrated. The structure consists of a double-spiral transmission line on FR4
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e9e4df5187abba10ac0c06fd0f13f7e3
Autor:
Achiles F. da Mota, Ben-Hur V. Borges, Vinicius M. Pepino, Fernando L. Teixeira, Emiliano R. Martins, Augusto Martins
Publikováno v:
Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP
Universidade de São Paulo (USP)
instacron:USP
Control of the resonance frequency of microwave cavities is of great interest in many applications such as sensing and wavelength filtering. However, this task normally relies on active control via functional materials (i.e., polymers and ferrites, o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6a7f33a79ffc50fa84b0a9925bc85bf0
Publikováno v:
IEEE Antennas and Wireless Propagation Letters. 17:2133-2136
In this letter, we design and fabricate a three-dimensional printed all-dielectric planar metalens for microwave focusing into a receiving antenna. The structure allows the antenna gain to be increased by 7.5 dB at 32.5 GHz with a bandwidth of 2.4 GH
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d6843c64e2c59dcbf9641032162eabd3
https://doi.org/10.1109/lawp.2018.2860521
https://doi.org/10.1109/lawp.2018.2860521
Autor:
Heidi Ottevaere, Fernando L. Teixeira, Augusto Martins, John Weiner, Ben-Hur V. Borges, Emiliano R. Martins, Wendy Meulebroeck, Achiles F. da Mota
Publikováno v:
Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP
Universidade de São Paulo (USP)
instacron:USP
We propose a semianalytical method to model, in both two and three dimensions (2D and 3D, respectively), the radiation emission of quantum emitters (QEs) interacting with nanopatterned structures. We then investigate the emission from QEs near a hype
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c39c6b6a5673f7abb539347bb51d9048
https://doi.org/10.1021/acsphotonics.7b01324
https://doi.org/10.1021/acsphotonics.7b01324
Autor:
Augusto Martins, Luiz Gonçalves Neto, Emiliano R. Martins, Fabriciu A. V. Benini, Vinicius M. Pepino, Cesar Domingues, Ben-Hur V. Borges, Achiles F. da Mota
Publikováno v:
Imaging and Applied Optics Congress.
In this paper we demonstrate for the first time static/dynamic stereoscopic holographic reconstructions in the visible range with two spatial light modulators (SLM). Stereoscopy is achieved by exciting two separate SLMs with two different wavelengths
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d1678339be4b3ea70efe461dee54a0b1
https://doi.org/10.1364/dh.2020.hf1d.6
https://doi.org/10.1364/dh.2020.hf1d.6