Memorias de investigación
Communications at congresses:
Interaction Between a Laser Beam and Semiconductor Nanowires: Application to the Raman Spectrum of Si Nanowires
Year:2012
Research Areas
  • Physics - Structure of materials,
  • Electronic technology and of the communications
Information
Abstract
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 characterization of the 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 NWs 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 spectra of Si NWs, where it is demonstrated that temperature induced by the laser beam play a major role in shaping the Raman spectrum of Si NWs
International
Si
Congress
11th International workshop on Beam Injection Assessment of Microstructures in Semiconductors
960
Place
Annaba, Argelia
Reviewers
Si
ISBN/ISSN
1753-2515
Start Date
25/06/2012
End Date
28/06/2012
From page
1
To page
8
International Journal of Nanoparticles
Participants
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Grupo de Conectividad
  • Departamento: Tecnología Electrónica