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Strong enhancement of second harmonic generation in 2-methyl-4-nitroaniline nanofibers

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Resumo:An effective control of the second harmonic generation (SHG) efficiency in electrospun nanofibers of nonlinear optically active 2-methyl-4-nitroaniline and carrier polymer poly(L-lactic acid) (MNAPLLA) is presented. The SHG efficiency of the MNA-PLLA fibers strongly depends on the diameter of the nanofibers and can be increased up to an order of magnitude by controlling the electrospinning processing parameters. For optimal electrospinning process conditions, MNA-PLLA nanofibers with an effective nonlinear optical coefficient that is two orders of magnitude greater than the counterpart bulk powder MNA may be obtained. The work can be used as a guideline for the manufacture of nanophotonic devices.
Autores principais:Isakov, D. V.
Outros Autores:Gomes, E. Matos; Belsley, M.; Almeida, B. G.; Cerca, Nuno
Assunto:Nanofibers Electrospinning Second harmonic generation
Ano:2012
País:Portugal
Tipo de documento:artigo
Tipo de acesso:acesso restrito
Instituição associada:Universidade do Minho
Idioma:inglês
Origem:RepositóriUM - Universidade do Minho

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