Zobrazeno 1 - 10
of 97
pro vyhledávání: '"Luiz Gonçalves Neto"'
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
Nowadays, there is a growing need to analyse systems using complex networks and graphs, especially in critical infrastructures. That includes transmission and distribution systems, where a single fault may cause power interruption for several consume
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::269f1d91e79da37587b1473891ff8b94
https://doi.org/10.1109/tla.2021.9477270
https://doi.org/10.1109/tla.2021.9477270
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
Publikováno v:
Digital Holography and Three-Dimensional Imaging 2019.
We suggest the use of halftone images for the generation of phase-only Fresnel holograms. The hologram is calculated by spatial filtering in the frequency plain of the two-dimensional cosine Transform. The phase-only hologram is obtained by keeping i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ff1cfd1999684692faeda194665fe492
https://doi.org/10.1364/dh.2019.w3a.31
https://doi.org/10.1364/dh.2019.w3a.31
Autor:
Achiles F. da Mota, Emiliano R. Martins, Augusto Martins, Yin Wang, Juntao Li, Luiz Gonçalves Neto, Fernando L. Teixeira, Vinicius M. Pepino, Ben-Hur V. Borges
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
Visual arts and entertainment related industries are continuously looking at promising innovative technologies to improve users’ experience with state-of-the-art visualization platforms. This requires further developments on pixel resolution and de
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b301b58a9f18fcdeadbb48935dc686ff
https://pubmed.ncbi.nlm.nih.gov/30469966
https://pubmed.ncbi.nlm.nih.gov/30469966
Autor:
Joao P. do Carmo, Luiz Gonçalves Neto, Ben-Hur V. Borges, Fernando L. Teixeira, Emiliano R. Martins, Augusto Martins, Achiles F. da Mota, Juntao Li, Yin Wang
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
This paper reports on the first hologram in transmission mode based on a c-Si metasurface in the visible range. The hologram shows high fidelity and high efficiency, with measured transmission and diffraction efficiencies of ~65% and ~40%, respective
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ced6df656f1548003dd169f691add0a3
Autor:
Juntao Li, Emiliano R. Martins, Joao P. do Carmo, Luiz Gonçalves Neto, Achiles F. da Mota, Yin Wang, Fernando L. Teixeira, Augusto Martins, Ben-Hur V. Borges
Publikováno v:
Imaging and Applied Optics 2018 (3D, AO, AIO, COSI, DH, IS, LACSEA, LS&C, MATH, pcAOP).
This paper presents the first experimental demonstration of c-Si metasurface holograms operating with good quality in the visible range. The measured transmission (diffraction) efficiencies are as high as 47.4%(30%) at the designed wavelength of 532n
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ce65af095d0d11c49ddec0a21c32ca7b
https://doi.org/10.1364/dh.2018.dth2e.5
https://doi.org/10.1364/dh.2018.dth2e.5
Publikováno v:
Imaging and Applied Optics 2018 (3D, AO, AIO, COSI, DH, IS, LACSEA, LS&C, MATH, pcAOP).
We suggest the use of partitioned holograms to decrease the time calculation of Fresnel holograms. We show that the time calculation can be decreased about 3 times partitioning the desired Fresnel hologram into 16 or more sub holograms.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::257cc2f35d42860159d33446006e8553
https://doi.org/10.1364/3d.2018.jm4a.31
https://doi.org/10.1364/3d.2018.jm4a.31
Publikováno v:
ECS Transactions. 39:439-446
In this work, the design and fabrication of a low f-number cylindrical microlens array is presented. The lenses were fabricated in thick photo resist of 12 μm thickness, using a contact printer exposure through a mask with a repetitive 6 μm line -
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::26928f8d8dfcc504157a2f8160f7ff85
https://doi.org/10.1149/1.3615224
https://doi.org/10.1149/1.3615224
Autor:
Renato Goulart Jasinevicius, Ronaldo Domingues Mansano, Patrick Verdonck, Giuseppe A. Cirino, Luiz Gonçalves Neto
Publikováno v:
Surface and Coatings Technology. 204:2966-2970
This work presents the fabrication of two-dimensional diffraction gratings in diamond-like carbon (DLC) thin films, with applications in computer-generated holography and micro optics. In order to achieve high diffraction efficiency and to have a ver
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1517a1cded44e18a221d0cfc7637c92a
https://doi.org/10.1016/j.surfcoat.2010.02.037
https://doi.org/10.1016/j.surfcoat.2010.02.037
Autor:
Luiz Gonçalves Neto, Euclydes Marega, Giuseppe A. Cirino, Patrick Verdonck, Ronaldo Domingues Mansano, Lucila Cescato
Publikováno v:
ECS Transactions. 23:487-497
This work describes the design of a phase shift lithographic photomask for operation in proximity printing mode. The design explores the freedom of the diffraction of light by travelling along the distance between the mask plane and the wafer plane.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b8adae7f647cd5bf135fd809464d4bc4
https://doi.org/10.1149/1.3183755
https://doi.org/10.1149/1.3183755