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SUMMARY:Manipulating light at the nanoscale with plasmonics - Dr Emilie Ri
 nge Department of Material Science and Metallurgy and Department of  Earth
  Sciences
DTSTART:20181022T170000Z
DTEND:20181022T180000Z
UID:TALK109831@talks.cam.ac.uk
CONTACT:Beverley Larner
DESCRIPTION:Abstract: Interest in nanotechnology is driven by unprecedente
 d means to tailor physical behavior via structure and composition. Most pr
 operties\, including optical\, catalytic\, and electronic\, can be fine-tu
 ned through choice of composition\, size\, and shape of nanoparticles. Nan
 oparticles of free-electron metals\, typically gold and silver\, can in fa
 ct concentrate light via a phenomenon called localized surface plasmon res
 onances (LSPRs). LSPRs provide an attractive platform for enhanced photon 
 absorption and scattering (far-field effects) at their (size\, shape\, and
  composition-dependent) resonance frequency\, while concurrently generatin
 g a strong electric field close to the NP’s surface (near-field effects)
 . \n\nThis talk will first discuss the fundamental science and established
  applications of LSPRs \, including refractive index sensing and surface-e
 nhanced spectroscopies. Then\, it will address opportunities related to ea
 rth-abundant metals that provide cheap\, sustainable alternatives to silve
 r and gold. These include aluminum for UV applications and the very recent
 ly discovered nanostructured magnesium for enhanced light-matter interacti
 ons in the visible range. Together with the well-known noble metal structu
 res\, these new metals offer opportunities to harvest and manipulate light
  at the nanoscale to probe the world around us as well as drive chemical r
 eactions.\n
LOCATION:Bristol-Myers Squibb Lecture Theatre\, Department of Chemistry
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