PHYS 36 |
| This talk will describe a class of quasi-three dimensional plasmonic crystal that consists of multi-layered, regular arrays of sub-wavelength metal nanostructures. The complex structure of the optical transmission spectra of these crystals and their high sensitivity to surface binding makes them well-suited to applications in chemical and biological sensing. Quantitative electrodynamics modeling of their optical response enables full multi-wavelength spectroscopic detection of molecular binding events with sensitivities that correspond to small fractions of a monolayer. The high degree of spatial uniformity of the crystals, formed by a soft nanoimprint technique, provides the ability to image binding events over large areas with micron spatial resolution. These features, together with compact form factors, low cost fabrication procedures, simple readout apparatus, and ability for direct integration into microfluidic networks and arrays, suggest promise for these devices in label free bioanalytical detection systems. |
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Spectroscopy, Chemistry, and Imaging through Nanophotonics
8:00 AM-12:05 PM, Sunday, April 6, 2008 Morial Convention Center -- Rm. 340/341, Oral
Division of Physical Chemistry |