Spontaneous Raman Scattering
Mostrando 1-4 de 4 artigos, teses e dissertações.
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1. Analysis of Parameters for a Distributed Temperature Sensing based on Raman Scattering
Abstract This paper presents a theoretical and computational study on the analysis of parameters for distributed temperature sensing in optical fibers, based on spontaneous Raman scattering effect. The parameters studied were the optical power level, the range of frequency modulation and the length of the sensor element, as well as the application of optical
J. Microw. Optoelectron. Electromagn. Appl.. Publicado em: 2017-03
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2. Enhancement of Optical Absorption, Photoluminescence and Raman Transitions in Bi2O3-GeO2 Glasses with Embedded Silver Nanoparticles
The influence of silver nanoparticles (Ag-NPs) on the optical properties of Bi2O3-GeO2 glasses was investigated aiming the characterization of their potential for applications in photonic devices. The samples were prepared by the melt-quenching technique starting from high purity oxides (GeO2, Bi2O3 and AgNO3). Heat-treatment during different times was perfo
J. Braz. Chem. Soc.. Publicado em: 2015-12
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3. Sensores distribuidos utilizando efeitos não-lineares em fibras opticas para aplicação em estruturas inteligentes
Sensores distribuídos a fibra óptica representam uma tecnologia chave para o desenvolvimento de estruturas inteligentes, uma vez que podem ser totalmente integrados aos materiais da estrutura. Efeitos ópticos não lineares podem ser utilizados para implementar esta nova classe de sensores, sem a necessidade da construção de componentes sensores individu
Publicado em: 2004
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4. The structural basis for giant enhancement enabling single-molecule Raman scattering
We find that giant surface-enhanced Raman scattering for adsorbates on silver surfaces is present only on surfaces that exhibit self-similar fractal topology as inferred from atomic force microscopy. The fractal character results in localizing the energy of incident photons to volumes of a few nanometers on a side, millions of times smaller than the diff
National Academy of Sciences.