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Electromagnetic interaction between a laser beam and semiconductor nanowires deposited on different substrates: Raman enhancement in Si Nanowires

Published online by Cambridge University Press:  27 February 2014

J. Anaya ,
J. Jimenez ,
A. Rodriguez  and
T. Rodríguez
J. Anaya
Affiliation:
Optronlab Group, Departamento de Física de la Materia Condensada, Centro I+D, Universidad de Valladolid, Paseo de Belén 1, 47011 Valladolid, Spain
J. Jimenez
Affiliation:
Optronlab Group, Departamento de Física de la Materia Condensada, Centro I+D, Universidad de Valladolid, Paseo de Belén 1, 47011 Valladolid, Spain
A. Rodriguez
Affiliation:
Departamento de Tecnología Electrónica, E.T.S.I. de Telecomunicación, Universidad Politécnica de Madrid, 28040 Madrid, Spain
T. Rodríguez
Affiliation:
Departamento de Tecnología Electrónica, E.T.S.I. de Telecomunicación, Universidad Politécnica de Madrid, 28040 Madrid, Spain
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Abstract

Raman scattering of Si nanowires (NWs) presents antenna effects. The electromagnetic resonance depends on the electromagnetic coupling of the system laser/NW/substrate. The antenna effect of the Raman signal was measured in individual NWs deposited on different substrates, and also free standing NWs in air. The one phonon Raman band in NWs can reach high intensities depending on the system configuration; values of Raman intensity per unit volume more than a few hundred times with respect to bulk substrate can be obtained.

Keywords

nanostructureRaman spectroscopySi
Type
Articles
Information
MRS Online Proceedings Library (OPL) , Volume 1627: Symposium L – Photonic and Plasmonic Materials for Enhanced Optoelectronic Performance , 2014 , mrsf13-1627-l09-38
Copyright
Copyright © Materials Research Society 2014 

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References

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