Polarized Rayleigh back-scattering from individual semiconductor nanowires

Nanotechnology
Duming ZhangP C Eklund

Abstract

A complete understanding of the interaction between electromagnetic radiation and semiconductor nanowires (NWs) is required in order to further develop a new generation of opto-electronic and photonic devices based on these nanosystems. The reduced dimensionality and high aspect ratio of nanofilaments can induce strong polarization dependence of the light absorption, emission and scattering, leading in some cases to the observation of optical antenna effects. In this work we present the first systematic study of polarized Rayleigh back-scattering from individual crystalline semiconductor NWs with known crystalline structure, orientation and diameters. To explain our experimental Rayleigh polar patterns, we propose a simple theory that relies on a secondary calculation of the volume-averaged internal electromagnetic fields inside the NW. These results revealed that the internal and emitted field can be enhanced depending on the polarization with respect to the NW axis; we also show that this effect strongly depends on the NW diameter.

References

Oct 4, 2000·Physical Review Letters·A M RaoM S Dresselhaus
Jan 3, 2001·Physical Review Letters·G S DuesbergS Roth
Nov 6, 2003·Journal of Nanoscience and Nanotechnology·Qihua XiongP C Eklund
Dec 8, 2005·Journal of the American Chemical Society·Peter J PauzauskieFrançois Lagugné-Labarthet
May 23, 2006·Physical Review Letters·Linyou CaoJonathan E Spanier
Apr 22, 2008·Nano Letters·G ChenP C Eklund
Aug 15, 2008·Nano Letters·Otto L MuskensAd Lagendijk

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Citations

Mar 8, 2011·Chemical Communications : Chem Comm·Sandra Preciado-FloresJin Z Zhang

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