Observatorio de I+D+i UPM

Memorias de investigación
Research Publications in journals:
Interaction between a laser beam and semiconductor nanowires: application to the Raman spectrum of Si nanowires
Year:2013
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 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.
International
Si
JCR
No
Title
International Journal of Nanoparticles
ISBN
1753-2507
Impact factor JCR
Impact info
Volume
6
Journal number
2/3, 2013
From page
103
To page
112
Month
SIN MES
Ranking
Participants
  • Autor: J. Anaya (Uniiv.Valladolid)
  • Autor: A. Torres (Univ. Valladolid)
  • Autor: A. C. Prieto (Univ. Valladolid)
  • Autor: Juan Jiménez (Univ. Valladolid)
  • Autor: Andres Rodriguez Dominguez (UPM)
  • Autor: Tomas Rodriguez Rodriguez (UPM)
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Grupo de Conectividad
  • Departamento: Tecnología Electrónica
S2i 2020 Observatorio de investigación @ UPM con la colaboración del Consejo Social UPM
Cofinanciación del MINECO en el marco del Programa INNCIDE 2011 (OTR-2011-0236)
Cofinanciación del MINECO en el marco del Programa INNPACTO (IPT-020000-2010-22)