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Proceedings Paper

Silver plasmon rulers as probes in polarization-resolved plasmon coupling microscopy
Author(s): Hongyun Wang; Guoxin Rong; Linglu Yang; Björn M. Reinhard
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Paper Abstract

The distance dependent interactions between individual noble metal nanoparticles enable active plasmonic nanostructures with applications in microscopy, sensing and imaging. If two nanoparticles approach each other close enough for their plasmons to couple, the resonance wavelength of the dimer red-shifts. This effect is utilized in plasmon coupling microscopy (PCM) to resolve subdiffraction limit contacts. We apply polarization resolved PCM to monitor changes in the orientation and interparticle separation of individual silver plasmon rulers during their lateral diffusion on a plasma membrane. The ability to track the position of individual silver plasmon rulers and to simultaneously monitor their rotation and separation in PCM makes plasmon ruler probes for the local structure of the supporting membrane.

Paper Details

Date Published: 11 February 2011
PDF: 5 pages
Proc. SPIE 7911, Plasmonics in Biology and Medicine VIII, 791110 (11 February 2011); doi: 10.1117/12.874244
Show Author Affiliations
Hongyun Wang, Boston Univ. (United States)
Guoxin Rong, Boston Univ. (United States)
Linglu Yang, Boston Univ. (United States)
Björn M. Reinhard, Boston Univ. (United States)


Published in SPIE Proceedings Vol. 7911:
Plasmonics in Biology and Medicine VIII
Tuan Vo-Dinh; Joseph R. Lakowicz, Editor(s)

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