Výsledky vyhledávání - "Emerson C. Barbano"

Akademický článek

Sistema computadorizado para deslocamento de amostra com motor de passo utilizando o L298: aplicação na técnica de varredura-Z

Autor: André L. S. Romero, Emerson C. Barbano, Lino Misoguti

Publikováno v: Revista Brasileira de Ensino de Física, Vol 41, Iss 4

Resumo Neste trabalho vamos abordar uma nova tecnologia, de baixo custo, de controle de motor de passo via computador, a qual pode ser utilizada para movimentação de amostras. Mais especificamente, desenvolvemos um sistema de controle usando o mód

Externí odkaz: https://doaj.org/article/9ee7b1a8121e44c491580026875959b4

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Small difference between the nonlinear refractions of normal and deuterated solvents measurable by nonlinear ellipse rotation

Autor: Lino Misoguti, Emerson C. Barbano, J. P. Siqueira, J. C. Fernandes

Publikováno v: Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP

In this work, we have measured the nonlinear refractions of six different normal and deuterated solvents: water, DMSO, methanol, acetone, toluene, and chloroform using a nonlinear ellipse rotation (NER) signal with femtosecond laser pulses. High-prec

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::997c121fc7298cc5f8be74ecb1ed0941

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Use of phase-sensitive amplifiers for high precision measurements: Faraday constant determination with an alternating or static magnetic field

Autor: André Luís dos Santos Romero, Lino Misoguti, Rubens Travassos Augusto Filho, Emerson C. Barbano

Publikováno v: Revista Brasileira de Ensino de Física v.43 2021
Revista Brasileira de Ensino de Física
Sociedade Brasileira de Física (SBF)
instacron:SBF
Revista Brasileira de Ensino de Física, Volume: 43, Article number: e20210198, Published: 02 JUL 2021
Revista Brasileira de Ensino de Física, Vol 43 (2021)
Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP

Neste trabalho apresentamos alguns dos conceitos fundamentais que, explicam como os amplificadores sensíveis à fase funcionam e, como eles podem ser explorados para projetar métodos experimentais para medidas precisas de grandezas físicas. Mais e

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c1e093f6b1129d0b05cec448ee462d7d
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1806-11172021000100458

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Discrimination between two distinct nonlinear effects by polarization-resolved Z-scan measurements

Autor: Tiago Gualberto Bezerra de Souza, Marlon dos Santos Melhado, Sérgio Carlos Zílio, Emerson C. Barbano, Lino Misoguti

Publikováno v: Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP

We investigated how the Z-scan technique can be explored to distinguish two types of nonlinear refractive effects by employing two distinct laser polarizations. It is possible that pure electronic, molecular orientation and thermal nonlinear effects

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::af5cfc333def39ee4aa95a20f65578ea

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Third-order nonlinearities as a Function of the Pulse Width in Selected Deuterated Solvents

Autor: Emerson C. Barbano, Lino Misoguti, Julia C. Fernandes, J. P. Siqueira

Publikováno v: Frontiers in Optics / Laser Science.

We have measured the third-order nonlinearities of six different normal and deuterated solvents by nonlinear ellipse rotation signal. We observed that the replacement of hydrogen to deuterium atoms reduces slightly the magnitude of the nonlinearities

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6670ad099d850e5748cbecf8710604ca
https://doi.org/10.1364/fio.2020.jth4a.11

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Cross-section profile of the nonlinear refractive index of Gorilla Glass obtained by nonlinear ellipse rotation measurements

Autor: Lino Misoguti, J. A. C. Gomes, Emerson C. Barbano

Publikováno v: Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP

In this work we determined the influence of potassium-to-sodium ion exchange in the nonlinear refractive value (n2) of Corning’s Gorilla Glass (GG). Due to the production process, GG has a rich potassium surface in comparison to the original sodium

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::37445aa99d6754bb5ae891a55a1bd2c4
https://pubmed.ncbi.nlm.nih.gov/31674472

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Sistema computadorizado para deslocamento de amostra com motor de passo utilizando o L298: aplicação na técnica de varredura-Z

Autor: André Luís dos Santos Romero, Emerson C. Barbano, Lino Misoguti

Publikováno v: Revista Brasileira de Ensino de Física, Volume: 41, Issue: 4, Article number: e20190018, Published: 18 APR 2019
Revista Brasileira de Ensino de Física v.41 n.4 2019
Revista Brasileira de Ensino de Física
Sociedade Brasileira de Física (SBF)
instacron:SBF
Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP
Revista Brasileira de Ensino de Física, Vol 41, Iss 4

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b0e48bf2d76b1b98f231f2a246e98d29
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-11172019000400403&lng=en&tlng=en

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Absolute Nonlinear Refractive Index Spectra Determination of Organic Molecules in Solutions

Autor: Emerson C. Barbano, Sérgio Carlos Zílio, Lino Misoguti, Marcelo G. Vivas, Marlon dos Santos Melhado

Publikováno v: Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP

It has been a great challenge to measure the spectrum of pure bound-electronic third-order nonlinear refraction ( n2) of organic chromophores in solutions because of the spurious contribution from the solvent and cuvette walls. In order to circumvent

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::afe38227f060b8220284f77742e47768
https://pubmed.ncbi.nlm.nih.gov/30609897

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Polarization-resolved Z-scan measurements to discriminate two distinct mixed refractive nonlinearities

Autor: Emerson C. Barbano, Sérgio Carlos Zílio, T. G. B. de Souza, Marlon dos Santos Melhado, Lino Misoguti

Publikováno v: Scopus-Elsevier

Different nonlinear optical processes may occur during light-matter interaction such as electronic, orientational and thermal. We investigated polarization-resolved Z-scan to distinguish two of these processes occurring simultaneously. Analytical equ

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::35de27e4d9ca2ba5d5edb55aff9f3856
https://doi.org/10.1364/nlo.2019.ntu4a.23

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Nonlinear ellipse rotation measurements in optical thick samples

Autor: Sérgio Carlos Zílio, Emerson C. Barbano, M. L. Miguez, J. A. Coura, Lino Misoguti

Publikováno v: Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP

Nonlinear refractive indices of several optical glasses were measured by means of the nonlinear ellipse rotation method in a tightly focused laser beam condition, leading to the improvement of the spatial resolution which allows probing the local ref

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5bdeee4577aca14a5f82f727061ebf0d
https://doi.org/10.1007/s00340-015-6178-x

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