Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/13784
Título: | Is it possible to assess spatial correlations in a system of polarizable particles by measuring its optical response? |
Autor(es): | Pereira, Rui M. S. Pereira, P. A. Smirnov, Georgi Vasilevskiy, Mikhail |
Palavras-chave: | Optical properties Nanoparticles Spatial correlations Dipole-dipole interaction |
Data: | 2011 |
Editora: | Society of Photo-optical Instrumentation Engineers (SPIE) |
Revista: | Proceedings of SPIE |
Resumo(s): | Optical response of a system of (nearly) identical polarizable particles, coupled by electromagnetic interactions is studied theoretically addressing the following question: Is it possible to extract information concerning the spatial correlations in the particles' positions from the experimentally measurable optical response of the system? The relation between the spectral-dependent solutions of the coupled-dipole equations and the type and parameters of the particle-particle correlation function in real space is analyzed. The physical system considered is a collection of metallic nanoparticles distributed over a square or cubic lattice in a random-correlated way, relevant to metal- dielectric composites interesting for nanoplasmonics. We show that it is possible to propose a numerical criterium that allows for conclusion concerning the degree of correlation in the particle positions using the (experimentally measurable) extinction spectrum of the system. |
Tipo: | Artigo em ata de conferência |
URI: | https://hdl.handle.net/1822/13784 |
ISBN: | 9780819485755 |
DOI: | 10.1117/12.892194 |
ISSN: | 0277-786X |
Versão da editora: | http://spiedigitallibrary.org/proceedings/resource/2/psisdg/8001/1/80013M_1?isAuthorized=no |
Arbitragem científica: | yes |
Acesso: | Acesso restrito UMinho |
Aparece nas coleções: | CDF - CEP - Artigos/Papers (with refereeing) |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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article_SPIE_v7.pdf Acesso restrito! | Documento principal | 210,08 kB | Adobe PDF | Ver/Abrir |