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Proceedings Article

Silver plasmon rulers as probes in polarization-resolved plasmon coupling microscopy

[+] Author Affiliations
Hongyun Wang, Guoxin Rong, Linglu Yang, Björn M. Reinhard

Boston Univ. (USA)

Proc. SPIE 7911, Plasmonics in Biology and Medicine VIII, 791110 (February 11, 2011); doi:10.1117/12.874244
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From Conference Volume 7911

  • Plasmonics in Biology and Medicine VIII
  • Tuan Vo-Dinh; Joseph R. Lakowicz
  • San Francisco, California, USA | January 22, 2011

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.

© (2011) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Citation

Hongyun Wang ; Guoxin Rong ; Linglu Yang and Björn M. Reinhard
"Silver plasmon rulers as probes in polarization-resolved plasmon coupling microscopy", Proc. SPIE 7911, Plasmonics in Biology and Medicine VIII, 791110 (February 11, 2011); doi:10.1117/12.874244; http://dx.doi.org/10.1117/12.874244


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