Zobrazeno 1 - 7
of 7
pro vyhledávání: '"Leonardo F. Araujo"'
Autor:
Leonardo F. Araujo, I. C. S. Carvalho, Oswaldo Baffa, Eder José Guidelli, David R. Clarke, A. C. A. Assunção
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 report a simple and fast microwave-assisted method to grow silver nanoparticle films with tunable plasmon resonance band. Microwaving time controls nucleation and growth as well as particle agglomeration, cluster formation, particle morphology, an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bddbea9cc2df65223c7d729fa934b2f7
Autor:
Anderson S. L. Gomes, Melissa Maldonado, G.K.B. Costa, I. C. S. Carvalho, Jake Fontana, L. de S. Menezes, Leonardo F. Araujo
Publikováno v:
2017 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC).
Metallic colloids can confine and focus light below the diffraction limit, leading to interesting properties and applications, such as metamaterials and sensors. However, accurate knowledge of the refractive indices of these colloids is critical to d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dca6f394162df605d13e054dc5766130
https://doi.org/10.1109/cleoe-eqec.2017.8086635
https://doi.org/10.1109/cleoe-eqec.2017.8086635
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:
Anderson S. L. Gomes, G.K.B. Costa, Melissa Maldonado, Leonardo de S. Menezes, Jake Fontana, Cid B. de Araújo, Isabel C. S. Carvalho, Leonardo F. Araujo
Publikováno v:
Optics Express. 26:20298
The capability to dynamically control the nonlinear refractive index of plasmonic suspensions may enable innovative nonlinear sensing and signaling nanotechnologies. Here, we experimentally determine the effective nonlinear refractive index for gold
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::657ada36e1519a700ec9357d608324de
https://doi.org/10.1364/oe.26.020298
https://doi.org/10.1364/oe.26.020298
Autor:
Isabel C. S. Carvalho, Leonardo F. Araujo, Walter Margulis, Jake Fontana, Sebastián Etcheverry
Publikováno v:
Applied Physics Letters. 111:221108
We demonstrate the digital electric eld induced switching of plasmonic nanorods between 1 and 0 orthogonal aligned states using an electro-optic fluid fiber component. We show by digitally switching the nanorods, that thermal rotational diffusion of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::168573593ae0d2cf122c1aed8a40d610
https://doi.org/10.1063/1.5001702
https://doi.org/10.1063/1.5001702
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:
Vittoria Finazzi, Valerio Pruneri, F. C. Favero, Leonardo F. Araujo, Joel Villatoro, Géraud Bouwmans
Publikováno v:
Optics Express. 20:7112
All-optical-fiber Fabry-Perot interferometers (FPIs) with microcavities of different shapes were investigated. It was found that the size and shape of the cavity plays an important role on the performance of these interferometers. To corroborate the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d76426d4a633e0be47238c27d244405b
https://doi.org/10.1364/oe.20.007112
https://doi.org/10.1364/oe.20.007112