English
 
Help Privacy Policy Disclaimer
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT

Released

Conference Paper

Light scattering from coupled plasmonic nanospheres on a stretchable substrate for application as a biosensor or mechanical sensor

MPS-Authors
/persons/resource/persons125283

Moirangthem,  Rakesh Singh
Interface Spectroscopy, Interface Chemistry and Surface Engineering, Max-Planck-Institut für Eisenforschung GmbH, Max Planck Society;

External Resource
No external resources are shared
Fulltext (restricted access)
There are currently no full texts shared for your IP range.
Fulltext (public)
There are no public fulltexts stored in PuRe
Supplementary Material (public)
There is no public supplementary material available
Citation

Xie, H., Yaseen, M. T., Moirangthem, R. S., & Chang, Y.-C. (2014). Light scattering from coupled plasmonic nanospheres on a stretchable substrate for application as a biosensor or mechanical sensor. In WIT Transactions on Engineering Sciences (pp. 191-196). Southampton, UK: WITPress.


Cite as: https://hdl.handle.net/21.11116/0000-0001-D47B-6
Abstract
The ellipsometric spectra (Ψ and Δ) of coupled metallic nanoparticles on a stretchable substrate have been studied via the spherical-harmonics based Green's function method. We use Au trimmer nanoparticles and dielectric substrate. The calculated ellipsometric spectra show a plasmonic resonance peak with asymmetric lineshape. For a trimmer of metallic nanoparticles on a stretchable substrate, the separation between nanoparticles in the trimmer can be varied by the applied mechanical stress. We find that both the plasmonic resonance peak position and the signal strength at the resonance frequency are sensitive to the gap distance in the trimmer, which can be controlled by the stretchable substrate. The simulation results indicate that the sensitivity of the plasmonic resonance lineshape to the inter-particle distance allows this coupled nanoparticle system to be used as a biosensor or mechanical sensor. The experimental ellipsometric spectra for closely-spaced metallic nanoparticles on a PDMS substrate are also reported. Copy; 2014 WIT Press.