Zobrazeno 1 - 10
of 15
pro vyhledávání: '"Alexandre R. Camara"'
Autor:
Gleice C. M. Germano, Manoel L. da Silva Neto, Melissa Maldonado, Alexandre R. Camara, Leonardo F. Araújo, Ali M. Jawaid, Richard A Vaia, André L. Moura, Anderson S. L. Gomes, Isabel C. S. Carvalho
Publikováno v:
Latin America Optics and Photonics (LAOP) Conference 2022.
Here we investigate the third-order Nonlinear Optical (NLO) properties of Layered Transition Metal Dichalcogenides (LTMDs), the metallic NbS2. The Z-scan technique was employed to characterize the nonlinear refraction (NLR) and nonlinear absorption (
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::56de0e7f2d95ddd4dd8d7ac1e5d855d6
https://doi.org/10.1364/laop.2022.tu4a.2
https://doi.org/10.1364/laop.2022.tu4a.2
Publikováno v:
Materials Research, Volume: 23, Issue: 3, Article number: e20200061, Published: 13 JUL 2020
Materials Research v.23 n.3 2020
Materials research (São Carlos. Online)
Universidade Federal de São Carlos (UFSCAR)
instacron:ABM ABC ABPOL
Materials Research, Vol 23, Iss 3 (2020)
Materials Research v.23 n.3 2020
Materials research (São Carlos. Online)
Universidade Federal de São Carlos (UFSCAR)
instacron:ABM ABC ABPOL
Materials Research, Vol 23, Iss 3 (2020)
This work presents the investigation, at room temperature, of Zn2TiO4samples containing Ni2+ ions as substitutional impurities. Samples with molecular formula Zn2(1-x)Ni2xTiO4, where x = 0.00, 0.0007, 0.001, 0.0013, 0.002 and 0.003, in which Zn2+ ion
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::64c4fc653efc244f56fe563605f86e5e
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392020000300214&lng=en&tlng=en
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392020000300214&lng=en&tlng=en
Autor:
Regina C. Barroso, Alexandre R. Camara, L.P. Nogueira, Isabel C. S. Carvalho, Walter Margulis, M.V. Colaço
In this work, we present a quantitative (statistical) 3D morphological characterization of optical fibers used in electric-field sensing. The characterization technique employs propagation-based x-ray phase-contrast microcomputed tomography (micro-CT
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ea76535e8402b8cc93e5a43b4cade09a
http://hdl.handle.net/10852/81722
http://hdl.handle.net/10852/81722
Publikováno v:
Journal of Electronic Materials. 46:6848-6855
Polycrystalline Zn2TiO4 samples with Mn2+ doping level of 0%, 0.1%, 1.0%, and 5.0% have been produced by conventional solid-state method and their optical and structural properties investigated. Rietveld refinement of x-ray diffraction patterns revea
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::288350c5e8ac45f097a230999ea9136f
https://doi.org/10.1007/s11664-017-5742-z
https://doi.org/10.1007/s11664-017-5742-z
Publikováno v:
Optical Materials. 64:323-326
The optical properties of Mn 3+ ions in the elpasolites Cs 2 NaGaF 6 and Cs 2 NaAlF 6 have been investigated by absorption spectroscopy at 4.2 K. The absorption spectra are dominated by the spin-allowed 5 E → 5 T 2 transition and the transition bet
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::83b59b91597f6694dc0c0564b62b34c5
https://doi.org/10.1016/j.optmat.2016.12.026
https://doi.org/10.1016/j.optmat.2016.12.026
Autor:
Marcos Vinicius Colaço Gonçalves, Alexandre R. Camara, Clara Johanna Pacheco, Zeila Virginia Torres Santos
Publikováno v:
Revista Brasileira de Ensino de Física, Volume: 41, Issue: 1, Article number: e20180142, Published: 30 JUL 2018
Revista Brasileira de Ensino de Física, Vol 41, Iss 1
Repositorio Institucional-UCH
Universidad de Ciencias y Humanidades
UCH-Institucional
instacron:UCH
Revista Brasileira de Ensino de Física v.41 n.1 2019
Revista Brasileira de Ensino de Física
Sociedade Brasileira de Física (SBF)
instacron:SBF
Revista Brasileira de Ensino de Física, Vol 41, Iss 1
Repositorio Institucional-UCH
Universidad de Ciencias y Humanidades
UCH-Institucional
instacron:UCH
Revista Brasileira de Ensino de Física v.41 n.1 2019
Revista Brasileira de Ensino de Física
Sociedade Brasileira de Física (SBF)
instacron:SBF
One of the first subjects studied in Electricity and Magnetism classes is how one can make an electrically neutral object be an electrically charged object. There are three ways to do it: charging by friction, charging by contact and charging by indu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::39a5a96f64c37fb1186efec108e9355a
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-11172019000100601&lng=en&tlng=en
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-11172019000100601&lng=en&tlng=en
Autor:
Isabel C. S. Carvalho, Leonardo F. Araujo, Sebastián Etcheverry, G.K.B. Costa, João Pereira, Jake Fontana, Walter Margulis, Christiano J. S. de Matos, Alexandre R. Camara
Publikováno v:
Latin America Optics and Photonics Conference.
Optical properties of nanorods in the presence of external electric field when confined to a special optical fiber was investigated, showing an increase of the longitudinal absorption peak in the presence of the field.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::48d72edce46f03d979468503ad4585bc
https://doi.org/10.1364/laop.2016.lw3a.1
https://doi.org/10.1364/laop.2016.lw3a.1
Autor:
Isabel C. S. Carvalho, Alexandre R. Camara, João Pereira, Oleksander Tarasenko, Walter Margulis
Publikováno v:
Workshop on Specialty Optical Fibers and Their Applications.
Silica fibers with internal electrodes biased with HV are poled when simultaneously excited by green light. The x(2) induced measured through the Pockels effect at 1.55 μm reaches ~0.11 pm/V. Polin ...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::57b4de85f27733276ae60361dc9a482c
https://doi.org/10.1364/wsof.2015.wt4a.22
https://doi.org/10.1364/wsof.2015.wt4a.22
Autor:
Christiano J. S. de Matos, Alexandre R. Camara, Sebastián Etcheverry, Walter Margulis, João Pereira, Banahalli R. Ratna, G.K.B. Costa, Jawad Naciri, Jake Fontana, Isabel C. S. Carvalho, Ivan Hernandez-Romano, Leonardo F. Araujo
Publikováno v:
Optica. 4:864
As information technologies move from electron-to photon-based systems, the need to rapidly modulate light is of paramount importance. Here, we study the evolution of the electric-field-induced ali ...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::89c3adea75330961955f7fb18ce50920
https://doi.org/10.1364/optica.4.000864
https://doi.org/10.1364/optica.4.000864
Autor:
Paula M. P. Gouvêa, Renato E. de Araujo, Ana Carolina M. S. Dias, Alexandre R. Camara, Rosa F. Dutra, Arthur M. B. Braga, Isabel C. S. Carvalho
Publikováno v:
Workshop on Specialty Optical Fibers and their Applications.
We present a new dengue diagnose method with an all-optical fiber sensor based on LSPR from Au nanoparticles.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c93969e5a5596b1ad6f83a0a773b3c93
https://doi.org/10.1364/wsof.2013.w3.32
https://doi.org/10.1364/wsof.2013.w3.32