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

Hongyun Wang; Guoxin Rong; Linglu Yang; Björn M. Reinhard

doi:10.1117/12.874244

11 February 2011 Silver plasmon rulers as probes in polarization-resolved plasmon coupling microscopy

Hongyun Wang, Guoxin Rong, Linglu Yang, Björn M. Reinhard

Proceedings Volume 7911, Plasmonics in Biology and Medicine VIII; 791110 (2011) https://doi.org/10.1117/12.874244
Event: SPIE BiOS, 2011, San Francisco, California, United States

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.

Citation Download 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 (11 February 2011); https://doi.org/10.1117/12.874244

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