Document Detail

Nanowire antenna emission.
MedLine Citation:
PMID:  23030698     Owner:  NLM     Status:  PubMed-not-MEDLINE    
We experimentally demonstrate the directional emission of polarized light from single semiconductor nanowires. The directionality of this emission has been directly determined with Fourier microphotoluminescence measurements of vertically oriented InP nanowires. Nanowires behave as efficient optical nanoantennas, with emission characteristics that are not only given by the material but also by their geometry and dimensions. By means of finite element simulations, we show that the radiated power can be enhanced for frequencies and diameters at which leaky modes in the structure are present. These leaky modes can be associated to Mie resonances in the cylindrical structure. The radiated power can be also inhibited at other frequencies or when the coupling of the emission to the resonances is not favored. We anticipate the relevance of these results for the development of nanowire photon sources with optimized efficiency and/or controlled emission by the geometry.
Grzegorz Grzela; Ramón Paniagua-Domínguez; Tommy Barten; Yannik Fontana; José A Sánchez-Gil; Jaime Gómez Rivas
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2012-10-12
Journal Detail:
Title:  Nano letters     Volume:  12     ISSN:  1530-6992     ISO Abbreviation:  Nano Lett.     Publication Date:  2012 Nov 
Date Detail:
Created Date:  2012-11-15     Completed Date:  2013-05-07     Revised Date:  2014-01-30    
Medline Journal Info:
Nlm Unique ID:  101088070     Medline TA:  Nano Lett     Country:  United States    
Other Details:
Languages:  eng     Pagination:  5481-6     Citation Subset:  -    
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MeSH Terms
Erratum In:
Nano Lett. 2013 Dec 11;13(12):6297

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