Memorias de investigación
Artículos en revistas:
Interaction between a laser beam and semiconductor nanowires: application to the Raman spectrum of Si nanowires
Año:2013
Áreas de investigación
  • Fisica sm -- estructura de materiales,
  • Tecnología electrónica y de las comunicaciones
Datos
Descripción
One presents in this work the study of the interaction between a focused laser beam and Si nanowires (NWs). The NWs heating induced by the laser beam is studied by solving the heat transfer equation by finite element methods (FEM). This analysis permits to establish the temperature distribution inside the NW when it is excited by the laser beam. The overheating is dependent on the dimensions of the NW, both the diameter and the length. When performing optical characterisation of NWs using focused laser beams, one has to consider the temperature increase introduced by the laser beam. An important issue concerns the fact that the NW?s diameter has subwavelength dimensions, and is also smaller than the focused laser beam. The analysis of the thermal behaviour of the NWs under the excitation with the laser beam permits the interpretation of the Raman spectrum of Si NWs. It is demonstrated that the temperature increase induced by the laser beam plays a major role in shaping the Raman spectrum of Si NWs.
Internacional
Si
JCR del ISI
No
Título de la revista
International Journal of Nanoparticles
ISSN
1753-2507
Factor de impacto JCR
Información de impacto
Volumen
6
DOI
Número de revista
2/3, 2013
Desde la página
103
Hasta la página
112
Mes
SIN MES
Ranking
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Participantes
Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
  • Creador: Grupo de Investigación: Grupo de Conectividad
  • Departamento: Tecnología Electrónica