Tunable Plasmon Coupling in Distance-Controlled Gold Nanoparticles
2012; American Chemical Society; Volume: 28; Issue: 24 Linguagem: Inglês
10.1021/la3001575
ISSN1520-5827
AutoresHolger Lange, Beatriz H. Juárez, Adrian Carl, Marten Richter, Neus G. Bastús, Horst Weller, C. Thomsen, Regine von Klitzing, Andreas Knorr,
Tópico(s)Orbital Angular Momentum in Optics
ResumoPlasmons are resonant excitations in metallic films and nanoparticles. For small enough static distances of metal nanoparticles, additional plasmon-coupled modes appear as a collective excitation between the nanoparticles. Here we show, by combining poly(N-isopropylacrylamide) micro- and nanospheres and Au nanoparticles, how to design a system that allows controllably and reversibly switching on and off, and tuning the plasmon-coupled mode.
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