*********************************
There is now a CONTENT FREEZE for Mercury while we switch to a new platform. It began on Friday, March 10 at 6pm and will end on Wednesday, March 15 at noon. No new content can be created during this time, but all material in the system as of the beginning of the freeze will be migrated to the new platform, including users and groups. Functionally the new site is identical to the old one. webteam@gatech.edu
*********************************
Prof. Jon Camden, University of Tennesse, Knoxville
Plasmonic Nanostructures for Surface Enhanced Nonlinear Spectroscopy and Direct Imaging of Plasmon Modes
Physical Chemistry Seminar Series
Surface enhanced vibrational spectroscopies based on plasmonic nanostructures demonstrate exquisite sensitivity towards the structure of surface-bound species and the ability to measure the vibrational spectrum of a single molecule. Despite the widespread adoption of surface enhanced spectroscopy, previous work has focused almost exclusively on linear spectroscopies leaving the application of surface enhancement to non-linear techniques unexplored. We are, therefore, examining surface enhanced hyper-Raman scattering (SEHRS) both as a prototypical non-linear spectroscopy and for its application to the study of surface bound species. Our group is also working to experimentally map electromagnetic hot-spots in single-molecule active nanostructures. We will discuss our recent experiments combining optical spectroscopy measurements with electron energy loss spectroscopy (EELS) carried out in a scanning transmission electron microscope (STEM).
For more information contact Prof. Christine Payne (404-385-3125).
