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dc.contributor.advisor Halas, Naomi J.
dc.creatorOldenburg, Steven Jay
dc.date.accessioned 2009-06-04T06:50:45Z
dc.date.available 2009-06-04T06:50:45Z
dc.date.issued 2000
dc.identifier.urihttp://hdl.handle.net/1911/19543
dc.description.abstract Gold nanoshells consist of a dielectric core surrounded by an ultra thin shell of gold. By adjusting the ratio between the radius of the core and the thickness of the shell the plasmon resonance of the nanoshell can be placed at any wavelength from 500 nm--2500 nm. As the dimensions of the nanoshell approaches the wavelength of incident light, the extinction spectrum becomes a superposition of the multipole plasmon resonances. Adjustments to the core:shell ratio centered either the dipole or quadrupole mode at 830 mn. The distinct far field scattering distribution from each multipolar mode agreed well with calculations. The plasmon resonance condition and the local surface roughness give rise to intense local fields at the surface of the particle. When mercaptoaniline was absorbed onto nanoshells that had a plasmon resonance in the near IR, enhancements of the Raman signal by more than five orders of magnitude were recorded.
dc.format.extent 98 p.
dc.format.mimetype application/pdf
dc.language.iso eng
dc.subjectInorganic chemistry
Optics
dc.title Light scattering from gold nanoshells
dc.type.genre Thesis
dc.type.material Text
thesis.degree.department Chemistry
thesis.degree.discipline Natural Sciences
thesis.degree.grantor Rice University
thesis.degree.level Doctoral
thesis.degree.name Doctor of Philosophy
dc.identifier.citation Oldenburg, Steven Jay. "Light scattering from gold nanoshells." (2000) PhD diss., Rice University. http://hdl.handle.net/1911/19543.


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