Photonic Crystal Fibers
Mostrando 13-18 de 18 artigos, teses e dissertações.
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13. Dispositivos oticos baseados em fibras de cristal fotonico com eletrodos integrados / Optical devices based on photonic crystal fibers with integrated electrodes
In this work we present a study and the development of all-fiber optical devices. For this purpose we exploited the new possibilities brought by the development of Photonic Crystal Fibers. PCF s are special kind of optical fibers with a regular pattern of air holes in their transverse section, resembling a photonic crystal. Photonic Crystal Fibers not only h
Publicado em: 2009
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14. Controle e interação de fonons e fotons em fibras opticas de cristal fotonico / Control and interaction of phonons and photons in photonic crystal fibers
Techniques that may allow control and tight confinement of photons and phonons in photonic crystal fibers (PCFs) are investigated in this thesis. By means of robust numerical methods to solve Maxwell equations, a new kind of PCF with a tubular core is proposed. Simulations and experimental results show that such structure is able to confine light tighly insi
Publicado em: 2008
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15. Implementation of Z-Scan technique with white light continuum generated in a photonic crystal fiber for nonlinear spectrum determination / Implementação da técnica de varredura-Z com luz branca supercontínua gerada em fibras fotônicas na determinação do espectro de não linearidades
In this dissertation, we proposed a method that combines the Z-scan technique and the white-light continuum generated by a photonic crystal fiber to characterize the nonlinear spectrum of materials. The nonlinear spectrum provides crucial information on the characteristic, the origin and the potential of the nonlinearity for devices application. In this sens
Publicado em: 2008
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16. Geração de supercontínuo em fibra óptica de cristal fotônico com núcleo de água
Photonic crystal fibers (PCFs) are optical fibers whose core is surrounded by a regular matrix of holes that is responsible for light confinement and guidance. This new architecture opens new perspectives in the development of nonlinear applications, many of which are based upon the high efficiency with which nonlinearity-driven spectral broadening known sup
Publicado em: 2008
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17. Análise de perda e fluorescência em fibras de cristal fotônico com líquidos e polímeros
Fibras de cristal fotônico (PCFs) têm levado a uma atenção renovada ao campo das fibras ópticas devido às diversas propriedades exclusivas resultantes do seu perfil microestruturado. Em particular, este perfil permite a introdução de líquidos e polímeros na fibra de modo que estes interajam eficientemente com a luz, levando a aplicações em sensor
Publicado em: 2008
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18. Fluid insertion related processes for sensing using photonic crystal fibers / Processos relacionados a inserção de fluidos para sensoriamento com fibras de cristal fotonico
This work presents studies of how to insert fluids (liquid and gas) into microstructured optical fibers, especially photonic crystal fibers, also known as PCF?s. These optical fibers possess air holes that run along its entire length. They can be divided into two major groups: solid core fibers that guide light by total internal reflection and hollow core fi
Publicado em: 2007