Zobrazeno 1 - 4
of 4
pro vyhledávání: '"João M. B. Pereira"'
Autor:
João M. B. Pereira, Paula M. P. Gouvea, Arthur M. B. Braga, Isabel C. S. Carvalho, Antonio C. Bruno
Publikováno v:
Sensors, Vol 23, Iss 21, p 8785 (2023)
The finite element method (FEM) was used to investigate the optical–mechanical behavior of a Fabry–Perot Interferometer (FPI) composed of a capillary segment spliced between two sections of standard optical fiber. The developed FEM model was vali
Externí odkaz:
https://doaj.org/article/f6f97c4f1b164ced9c2421cbaf8653e0
Autor:
Jefferson F. D. F. Araujo, Andre L. A. Reis, Vanderlei C. Oliveira, Amanda F. Santos, Cleanio Luz-Lima, Elder Yokoyama, Leonardo A. F. Mendoza, João M. B. Pereira, Antonio C. Bruno
Publikováno v:
Sensors, Vol 19, Iss 7, p 1636 (2019)
We improved a magnetic scanning microscope for measuring the magnetic properties of minerals in thin sections of geological samples at submillimeter scales. The microscope is comprised of a 200 µm diameter Hall sensor that is located at a distance o
Externí odkaz:
https://doaj.org/article/73a6ddf2867e4ed8af1583da80fc7986
Publikováno v:
Optics express. 30(12)
Electrical corona discharge is employed in this work to deposit ions on the surface of an optical fiber, creating a strong electric field that is used for poling. Green laser light propagating in the core frees photocarriers that are displaced by the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::1209745e6eeca31de5e60766ca93844b
https://pubmed.ncbi.nlm.nih.gov/36224801
https://pubmed.ncbi.nlm.nih.gov/36224801
Autor:
João M B, Pereira, Lars, Grüner-Nielsen, Karsten, Rottwitt, Graham, Town, Fredrik, Laurell, Walter, Margulis
Publikováno v:
Optics express. 30(8)
We demonstrate the use of the electrooptic effect to control the propagation constant of the guided modes in silicate few mode fibers with internal electrodes. The electrooptic effect induces a perturbation of the fiber's refractive index profile tha
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::25d33826c492c1bcbc29b302ff8af3f5
https://pubmed.ncbi.nlm.nih.gov/35472882
https://pubmed.ncbi.nlm.nih.gov/35472882