Projetos
URI permanente para esta coleçãohttp://143.107.180.6:4000/handle/RIIFSC/5
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Item Espectroscopia ótica não convencional de filmes semicondutores de baixa dimensionalidade(2017-05-16) Nunes, Luiz Antonio de OliveiraO objetivo desse projeto é utilizar as técnicas de ótica moderna para entender as propriedades fundamentais de filmes semicondutores tipo super-redes crescidos pela técnica de MBE (Epitaxia por Feixe Molecular). Através de técnicas como a absorção de dois fótons, mistura de ondas, espectroscopia de pulsos ultra-curtos e espectroscopia Raman, pretendemos entender os fenômenos de relaxação de portadores quentes, perda de coerência de excitações, energia de ligação de excitons, confinamento quântico, espalhamento de fônons. Trata-se, portanto de um projeto com objetivo único, mas utilizando as diversas técnicas de ótica já utilizadas pelo Grupo de Ótica em outros problemas.Item Exchange of researchers for growth and characterization of nanostructures(2015-10-26) Poussep, IouriThis proposal will enable the exchange of primary investigators (Ray La Pierre at McMaster, Yuri Pusep at Universidade de Sao Paulo) and graduate students. The project involves the growth of semiconductor nanowires for applications in photovoltacs (solar cells), photodetectors, and quantum information Processing devices. This proposal will fund a 1 week visit of the McMaster PI to the Universidade de Sao Paulo, and a 1 week visit of the Brazilian PI to McMaster, in both year 1 and year 2 for project discussions and exchange of knowledge. A McMaster graduate student will spend 2 weeks in each of the two years at the Universidade de Sao Paulo to learn methods of characterizing nanowires. Likewise, a graduate student from Universidade de Sao Paulo will spend 2 weeks in each of the two years at McMaster learning methods of nanowire growth and device fabrication. Ray La Pierre at McMaster will grow semiconductor nanowires for characterization in Brazil. Prof. Yuri Pusep at USP is an expert in magneto-photoluminescence, magneto-transport and Raman spectroscopy used for the characterization of nanostructures. He will apply these techniques to the nanowires and devices produced at McMaster University. In particular, magneto-photoluminescence and magneto-transport are methods that are not currently available at McMaster.