Plasmonic fano resonance sensing system using gold nanosphere and J-aggregates

Andrew Fales; Bridget M. Crawford; Stephen J. Norton; Brendan G. DeLacy; Tuan Vo-Dinh

doi:10.1117/12.2222122

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22 April 2016 Plasmonic fano resonance sensing system using gold nanosphere and J-aggregates

Andrew Fales, Bridget M. Crawford, Stephen J. Norton, Brendan G. DeLacy, Tuan Vo-Dinh

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Proceedings Volume 9724, Plasmonics in Biology and Medicine XIII; 97240O (2016) https://doi.org/10.1117/12.2222122
Event: SPIE BiOS, 2016, San Francisco, California, United States

Abstract

Demonstrated herein is a simple method for the induction of J-aggregate formation in a colloidal solution of gold nanoparticles through the use of pseudoisocyanine (PIC) and polyvinyl sulfate. The plasmon-exciton coupling of the nanoparticle J-aggregate complex results in a split lineshape absorption spectrum with upper and lower plexcitonic branches. The use of nanoparticles with various plasmon resonances causes a shift in the upper plexcitonic band while the lower plexcitonic band remains at the same wavelength.

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Andrew Fales, Bridget M. Crawford, Stephen J. Norton, Brendan G. DeLacy, and Tuan Vo-Dinh "Plasmonic fano resonance sensing system using gold nanosphere and J-aggregates", Proc. SPIE 9724, Plasmonics in Biology and Medicine XIII, 97240O (22 April 2016); https://doi.org/10.1117/12.2222122

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