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Proceedings Article

Plasmon-enhanced photothermal response in heterogeneous metallic trimers

[+] Author Affiliations
S. Toroghi, P. G. Kik

CREOL, The College of Optics and Photonics, Univ. of Central Florida (United States)

Proc. SPIE 9163, Plasmonics: Metallic Nanostructures and Their Optical Properties XII, 91631B (September 10, 2014); doi:10.1117/12.2062259
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From Conference Volume 9163

  • Plasmonics: Metallic Nanostructures and Their Optical Properties XII
  • Allan D. Boardman
  • San Diego, California, United States | August 17, 2014

abstract

Heat generation in plasmonic nanostructures has attracted enormous attention due to the ability of these nanostructures to generate high temperatures in nanoscale volumes using far-field irradiation, enabling applications ranging from photothermal therapy to fast (sub-nanosecond) thermal optical switching. Here we investigate the optical and thermal response of a heterogeneous trimer structure composed of a gold nanoparticle surrounded by two larger silver nanoparticles analytically and numerically. We observe that this type of multi-scale multi-material plasmonic oligomer can produce temperature changes over two orders of magnitude higher than possible with isolated gold nanoparticles. © (2014) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Citation

S. Toroghi and P. G. Kik
" Plasmon-enhanced photothermal response in heterogeneous metallic trimers ", Proc. SPIE 9163, Plasmonics: Metallic Nanostructures and Their Optical Properties XII, 91631B (September 10, 2014); doi:10.1117/12.2062259; http://dx.doi.org/10.1117/12.2062259


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