Tuesday, 19 November 2013 17:11

Enhanced Light-Matter Interactions in Unconventional Nanocavities

    Enhanced Light-Matter Interactions in Unconventional Nanocavities
    Teri W. Odom, Northwestern University
    Thursday, November 21, 4:00 pm
    Room 66-110
    Metal nanostructures can concentrate optical fields into highly confined, nanoscale volumes, which is important for plasmonic nanolasers, white-light generation, and enhanced non-linear optical effects. This talk will describe how arrays of strongly coupled nanoparticles and three-dimensional bowtie nanoantennas provide new routes not only to achieve these extraordinary properties but also to scale them for wide-spread applications. First, we will describe a new type of nanocavity based on arrays of metal nanoparticles. These structures support lattice plasmon modes that can be amplified and that can result in room-temperature lasing with directional beam emission. Second, we will focus on NP dimers—3D bowties—that can function as optical nanoantennas. The extremely high electric field enhancements within the gap originate from the near-field interactions between the NPs. These localized fields can provide feedback for a new type of plasmonic laser based on 3D bowtie nanoparticle arrays.
    The Materials Science and Engineering Seminar is jointly sponsored by CMSE, DMSE, and MPC. Please join us! Light refreshments will be served.
    Last modified on Tuesday, 19 November 2013 17:59