AVS 58th Annual International Symposium and Exhibition
    MEMS and NEMS Group Friday Sessions
       Session MN-FrM

Paper MN-FrM4
Absorption and Emission of Plasmonic Antenna Arrays

Friday, November 4, 2011, 9:20 am, Room 105

Session: Characterization of Materials and Structures at the Micro- and Nano-scale
Presenter: Kathryn O'Brien, University of Florida
Authors: K.E. O'Brien, University of Florida
P.H. Holloway, University of Florida
M.R. Davidson, University of Florida
Correspondent: Click to Email
New and more portable means of generating narrow band radiation are of interest, especially in the terahertz (THz) range. One potential method for generating radiation involves photo-mixing over nano/micro scale plasmonic structures. The plasmonic structures can serve as antennas for absorbing incoming photons and conversely emit radiation of a lower frequency. Designs include 2-dimensional arrays of theses resonant structures fabricated on Ag thin films using electron-beam lithography and lift-off. Patterns vary from arrays of linear structures, “bowties,” and interlocking structures. We have shown emission of visible radiation from similar structures when excited by space charge from electrons. The absorption and emission of light by the structures has been measured for micron-scale and nano-scale antenna arrays and has exhibited a polarization dependent behavior. The effect of different antenna structures on the absorption and emission will be discussed.